Can you grow white kiwifruit in Guangxi?

Can you grow white kiwifruit in Guangxi? White kiwifruit can be planted in Guangxi. White kiwifruit has strong adaptability, waterlogging resistance, drought resistance and high temperature resistance, and can be used as both medicine and food, and can also be used as a greening tree species. Therefore, white kiwifruit is suitable for planting in a wide range of areas.

Can you grow kiwifruit in Xiayi County? Can you grow kiwifruit in Xiayi County? Kiwifruit can be planted in Xiayi County. It is mainly distributed in the Yangtze River basin in central China, the Qinling Mountains and its south, and the areas east of Hengduan Mountains.

Slope and aspect

Kiwi is a kind of fruit tree that likes light. When choosing a garden in a mountainous area, you should choose the sunny south slope, southeast slope and southwest slope, and the slope is generally not more than 30? So as to facilitate later soil preparation and shed construction and reduce the loss of soil moisture and nutrients.

Fertilize soil or land

Kiwifruit likes fertilizer and is afraid of scalding. Its growth and strong growth potential determine the urgency of its demand for fertilizer. In addition, the predatory working psychology of highlighting the yield in production, once kiwifruit lacks inorganic nutrients, it will turn yellow, split leaves and stop growing, so kiwifruit is sensitive to fertilizers, but its fleshy roots are also sensitive to soil salt concentration (especially continuous high temperature and drought), thus forming new contradictions. In view of this, it is necessary to master the fertilization of kiwifruit in production.

The annual fertilizer requirement of kiwifruit is as follows: N and K are needed in the early stage, and it is best to use them as base fertilizer after fruit picking in autumn, with a fertilizer of 5000kg/667 square meters and 243. 80kg/667m2 of calcium superphosphate mixed application.

From germination to flowering and fruiting, appropriate topdressing, mainly calcium, magnesium, boron, iron, manganese and other elements. This top dressing accounts for 2/3 of the whole year. In August, available phosphorus and potassium fertilizers were mainly used, and the application rates were N 15 ~ 20kg667m2, P5 ~ 7kg/667m2, K6 ~ 8kg/667m2, and topdressing accounted for 1/3 of the whole year.

moisture

The main reason why kiwifruit likes water and is afraid of waterlogging is that it is a broad-leaved fruit tree, especially in summer, its leaves have strong transpiration and water demand is relatively large. Therefore, it is generally desirable to keep the soil water content at 70% in June, July and August, but at the same time, kiwifruit root system is fleshy and has strong respiration, which requires high oxygen content in the soil, that is, it must have the necessary soil permeability. So according to the relationship between soil water and gas, it is not allowed to water too much. This is a very contradictory unity. What should we do? Therefore, we must plant grass on the ground, increase the application of organic fertilizer, strengthen the water storage capacity of soil, and emphasize the scientific water use principle of saving water first and irrigation second.

In production, many orchards die of a large number of unexplained trees in summer and autumn. In fact, they were drowned by watering trees. Kiwifruit trees will never die of drought, only from waterlogging. Many fruit farmers have experience. If it rains continuously in summer, or just after watering the ground, once the weather clears up and the temperature rises rapidly, many kiwifruits will wither when they stand up (commonly known as afternoon). These trees will die soon if they are not dealt with in time. This is typical of love the water's fear of waterlogging.

Kiwifruit has dense branches and leaves, shallow root distribution, and is neither drought-resistant nor waterlogging-tolerant, so Kiwifruit Garden needs irrigation and drainage equipment such as irrigation canals, drainage ditches, drip irrigation and sprinkler irrigation equipment. Economic water is drip irrigation, and the water supply is uniform; Sprinkler irrigation needs a lot of water, but it also plays a great role. In summer, sprinkler irrigation can not only supply water for roots, but also increase air humidity and reduce the temperature of trees. Sprinkler irrigation has antifreeze effect in early spring and autumn and winter.

Sprinkler irrigation is suitable for large fruit trees. The distance between nozzles shall be subject to the mutual contact of water spraying energy, such as 24×2 1m in France, which is arranged in a triangle, and each nozzle has 4-6 atmospheres.

The flowering period needs a slightly dry climate, which is conducive to bee pollination. Therefore, 7- 10 days of flowering is not suitable for irrigation, but should be fully irrigated before flowering, generally combined with fertilization. Pay attention to drainage in rainy season, and control irrigation in autumn after rainy season, so as not to affect the ripening of fruits and vines. Irrigation is required 1-2 times before winter in late autumn. In the northeast, water should be frozen.

Can kiwifruit be planted in Xinjiang? It is best to choose mountainous areas with convenient transportation, abundant sunshine, water source, moderate rainfall and slightly high humidity, loose and well-ventilated sandy loam or sandy land, or hilly areas rich in humus. After the site selection is determined, the road branch, irrigation and drainage system and fertilizer management room are planned first, and then the ventilation culvert in the planting area is planned. The main scaffolding methods used in kiwifruit planting are: T-frame, hedge frame, tripod, large shed frame and so on. Large flat-topped scaffolding is often used, and the original small-diameter trees can be used as live piles on the spot, and some replaceable bamboo and wood soil can be added, and concrete piles can be used in key parts. The height of the local frame is 1.8m, and the wires of 10- 12 are criss-crossed, forming a "well"-shaped network, and the distance between wires is about 60cm.

Fertilize soil or land

According to kiwifruit varieties, planned yield and soil fertility, determine the amount of fertilization. Before planting, 2.5 kilograms of fruit-bearing wood fertilizer can be applied to each plant in the pit, and a small amount of fertilizer can be applied to young trees. After that, fertilization is generally carried out three times a year, with base fertilizer 1 time and topdressing twice. After the fruits are harvested, apply the base fertilizer, that is, winter fertilizer, 20kg organic fertilizer per plant, and mixed application of phosphate fertilizer 1.5kg. After germination, apply 1 time topdressing, and apply 2kg compound fertilizer of nitrogen, phosphorus and potassium to each plant to enrich spring shoots and fruiting trees. The second time, before the vigorous growth period, fruit and wood fertilizer or compound fertilizer can be applied. Because the root of kiwifruit is fleshy, we should dig a shallow ditch a little far from the root, apply chemical fertilizer, seal the soil and avoid burning the root. Irrigation must be given after fertilization in dry season.

Plastic pruning and fruit thinning

The shape of branches depends on the way of scaffolding, so we should make full use of the surface of scaffolding to make branches evenly distributed and achieve the goal of high yield and high quality. Kiwifruit is divided into winter scissors, summer scissors and male scissors before pruning. Pruning in winter is carried out during the period from defoliation to germination in early spring 1 month, with thinning as the main method and proper cutting. Keep more main vines and fruiting branches and cut off dense branches. Twigs, cross branches and pest branches. Summer pruning is mainly carried out from mid-May to early July, such as sprouting, coring, thinning and binding, and timely erasing the buds on the trunk to arrange space for the branches and vines. Male plants are pruned after flowering in May-June. Leave 3-4 branches per plant, and each branch has 4-6 buds. When the new branch length is 1 m, pick the core. Generally, fruit is thinned in the field 1 month after flowering. Leave intermediate fruit and thinning fruit, reaching 1 fruit every 4-5 leaves. Generally, there are 1-2 fruits per 20 cm branch, and 5-6 fruits per 20-25 cm weak branch. 50 kg per plant, leaving 500-600 fruits.

Eliminate pests and diseases

The main diseases that harm kiwifruit are anthracnose, root-knot nematode, damping-off, damping-off, root rot and fruit soft rot. Among them, anthracnose not only harms stems and leaves, but also harms fruits. Spraying 800 times carbendazim for 2-3 times in germination period can prevent and control it. The management of fertilizer and water should be strengthened, and methyl isofenphos or 30% carbofuran toxic soil should be used to control root-knot nematode disease. The main pests of kiwifruit are mulberry Bai Dun scale, Penang comb scale, cutworm, scarab, leafhopper, fruit sucking moth and so on. The overwintering insects of scale insects are controlled by omethoate or 1500-2000 times killing liquid; Stir-fried bran for underground pests and carbofuran are mixed and applied to the ground according to the ratio of10:1. For scarabs, trichlorfon or malathion 1000 times solution is sprayed in the evening from late March to early April, or pyrethroid insecticides are used. Use 50% phoxim EC or 1000 times cartap to control cicada. Fruit-sucking moths occur in September when the sugar content of the fruit begins to increase, and they come out at night to harm the fruit, causing the fruit to fall or the damaged part to form lumps. Bagging, dark light or sweet and sour solution (1: 1) can be used for trapping and killing, or mirex can be sprayed 65438 times every 10- 15 days. After picking the fruits, clean up the orchard, cut off the branches and dead branches of pests and diseases, and burn them centrally to reduce the source of infection of pests and diseases.

Appropriate harvest

The maturity of kiwifruit at harvest has a great influence on its storage life and quality. Early or late harvesting of kiwifruit will affect the quality and flavor of the fruit, and it must go through the quality formation period to fully mature. According to the development period of the fruit, when the content of soluble solids in the fruit is 6%-7%, it is suitable for harvesting, while the fruit that needs long-term storage is required to reach 7%- 10%. Early harvest, bad taste. Harvesting should be carried out in sunny days without wind, not in rainy days, after rain and in the morning when dew is still wet. The best picking time is that the temperature does not rise before 10 am. When harvesting, light mining, light release and careful shipment are required to avoid bumping and piling, and it is best to pack and put in storage with the mining. Containers for peaches, such as boxes and baskets, should be padded with soft country materials at the bottom. Take care of them, don't sprain the pedicel or scratch the peel. The fruit after the first harvest is hard and astringent, and it must take 7- 10 days to eat. Ripe fruits should not be stored and should be sold in time.

Can kiwifruit be planted in the plain? Can be planted. Kiwi is very adaptable. As long as the plain area is high in terrain and the groundwater level is low, it will not be flooded. Kiwifruit has strong cold tolerance, which can generally withstand the low temperature below-12℃, and generally will not cause freezing damage.

Can kiwifruit be planted in Shandong? Yes, kiwifruit grows well in Shandong.

Yellowing of kiwifruit leaves is common everywhere, which is very harmful, especially in wetlands with high groundwater level. The incidence of diseased plants accounts for about 20% of the total number of cultivated plants, and the incidence of severely diseased plants is as high as 30%~50%. Yellowing leaves, except the veins are light green, the rest are yellow-green, with small leaves and weak trees. In severe cases, the leaves are white, the outer edge is curly and scorched, the peel is yellow, the pulp is cut white, and the edible value is lost. If you get sick for a long time, the whole tree will die.

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1. 1 Iron deficiency Because all kinds of salts in the soil layer evaporate to the ground through capillaries with water, the greater the water evaporation, the more salt accumulated in the topsoil, and the more drought will aggravate soil salinization. In alkaline soil, free ferrous ions are easily oxidized to ferric ions and fixed, which cannot be absorbed and utilized by kiwifruit roots. In addition, kiwifruit roots are fleshy roots, and the distribution layer is shallow, so it is easier to lose iron and lose green.

1.2 Unreasonable farming system leads to unbalanced supply of trace elements such as zinc, copper, magnesium and manganese in soil, and antagonism among elements leads to yellowing. Flooding irrigation, waterlogging in low-lying land and over-planting of seedlings in garden construction will easily lead to poor soil permeability, physiological and metabolic dysfunction and yellowing of root diseases in kiwi fruit tree.

1.3 root diseases Some root diseases of kiwifruit, such as root rot and root-knot nematode disease, interfere with and destroy the function of root system to absorb and comprehensively utilize various mineral nutrients in soil, thus causing physiological element deficiency and turning yellow due to pathological diseases.

2 Comprehensive prevention and control technology

2. 1 Choose the garden scientifically, and try to choose sandy loam land with deep soil layer, fertile soil and good permeability. It is forbidden to build a garden in the continuous cropping land and clayey soil where perennial fruit trees such as apples, pears and peaches have been planted. You can't build a garden in a plot with high groundwater level and easy water accumulation.

2.2 Scientific fertilization and irrigation should vigorously promote balanced fertilization technology, so that nitrogen, phosphorus and potassium can be combined with fertilization, and large elements and trace elements can be combined with fertilization. Pay attention to increasing the application of organic fertilizer in alkaline soil. 4,000 ~ 5,000 kg decomposed organic fertilizer was applied every 667m2 every year in the full fruit period, and the soil was improved by deep ploughing. Clover is planted in large rows and straw is covered in small rows. Continuously increase the content of soil organic matter to more than 2%. In alkaline soil above 7.5, it is suggested to apply sulfuric acid powder or 8% acetic acid solution 1kg to plants to appropriately reduce the rhizosphere pH value. Ammonium nitrogen fertilizer, such as ammonium sulfate or urea, should be used as the main fertilizer in the early growth stage every year, and nitrate nitrogen fertilizer and ammonium bicarbonate should be used less. Top dressing of iron fertilizer in soil should be mixed with decomposed organic fertilizer and humic acid fertilizer. Chelated iron fertilizers, such as Ye Lvling and Huang Yebik, are topdressing in spring when they germinate, with 30-50g per plant. You can also spray amino acid iron fertilizer or rare earth micro-fertilizer chelating humic acid liquid fertilizer and iron elements on the leaves during the growing season from the beginning of leaf spreading. Spray at least 5~6 times a year. Change flood irrigation to small border irrigation, avoid over-irrigation and beware of water accumulation. Infiltration irrigation or drip irrigation technology can be used if conditions permit.

2.3 Strictly control the output. The yield per 667m2 should be 2,000 ~ 2,500 kg to prevent overload and keep the tree robust.

2.4 Symptomatic prevention and treatment of yellow tree root diseases induced by physiological element deficiency pathological factors should be treated as soon as possible. On the basis of removing the diseased root and scraping off the diseased skin, choose 5% bacterial toxin 100 times solution to smear the diseased scar, and alternately spray 200-300 times solution of 5% bacterial toxin or 50-600 times solution of carbendazim wettable powder, or the same amount of Bordeaux solution to irrigate the root for 2-3 times.

For the etiolated trees induced by root-knot nematodes, 10% triazophos and Kexiandan granules should be used, and the rhizosphere soil should be treated with 3-5 kg dosage or 800 times of 40% poisonous silk emulsion every 667m2 to kill root-knot nematodes, and the physiological function of the root system should be restored as soon as possible by cutting off the diseased fibrous roots.

For yellowing plants, infusion can be carried out through hanging bottles. Through the experiment and demonstration in recent years, it is simple, fast and practical to prevent kiwifruit yellowing by branch infusion, which saves labor and time and has obvious effect. Specific methods: Select "Guang Tai" brand kiwifruit special nutrient solution or fruit tree selenium-enriched nutrient solution, and drill holes at the base of the diseased tree trunk to the pith (1/2 of the trunk diameter). The amount of nutrient solution depends on the diameter of the trunk, and the nutrient solution with the thickness of 1cm is 1ml (stock solution). Used after defoliation and before dormancy, diluted 30 times with 1 ml stock solution; When used in growth period, the stock solution is diluted 50 times. Pay attention to dilute with soft water (clean rainwater, rivers and lakes, etc.). ) and used in conjunction with it.

Yellow leaf disease of kiwifruit is a comprehensive disease caused by many reasons, such as element deficiency, root rot, nematode disease and so on. In recent years, yellow leaf disease of kiwifruit in Xixia County has caused the whole plant to die, reduced production in a large area, and even failed to harvest, which has become a major obstacle to high quality and high yield of kiwifruit. According to the long-term experimental observation of our station, the pollution-free prevention and control technologies are summarized as follows:

I. Characteristics of the disease

(1) Nematode-like yellow leaf disease The main diseases in our county are root-knot nematodes in the north and root-knot nematodes in peanuts. Nodules appear in the early stage of underground roots, the appearance and color of root bark are normal, the surface of large nodules is rough, and the nodules and nearby roots rot and turn dark brown in the later stage. Anatomically, rotten nodules, ivory pear-shaped or lemon-shaped nematodes can be seen. The aboveground parts of plants infected with nematodes are characterized by short plants, weak yellowing of branches and leaves, small leaves and easy fruit falling off. Pathogenic nematodes overwinter inside and outside the diseased roots and insect tumors in the soil, and can also be mixed with manure. In the second year, when the temperature rises, the 2nd instar larvae invade from the root tip, and their eggs hatch in batches in the soil and re-infect.

(2) Root rot-like yellow leaf disease is a destructive root fungal disease. The pathogen overwinters in roots and soil, and becomes ill in high temperature and high humidity climate the following year. Bacteria spread through tools, rain, water and pests, and invade through lenticels and wounds. It mainly harms roots, causing leaves to turn yellow and fall off, and trees to wither and die.

(3) Yellow leaf disease caused by element deficiency is mainly caused by iron deficiency, magnesium and zinc.

1. Iron deficiency, light yellow or yellowish white in young leaves, symptoms advancing from leaf source to main vein, normal in old leaves. In severe cases, the leaves are tender before the old leaves, so that all the leaves on the branches and vines lose their greenish yellow, or even the veins lose their greenish yellow or albinism, and the leaves become thin and easy to fall off, and the fruits are small and hard, with rough skins.

2. Magnesium deficiency, the symptoms mostly appear on the old leaves, and the chlorosis spots are regularly arranged at a certain distance along the leaf edge. The healthy green tissue band on both sides of the main collateral vein is wide, and the boundary between etiolated tissue and healthy tissue is obvious.

3. Due to zinc deficiency, the Huang Liang between veins of old leaves became green, the leaf margin was heavier, and the yellowing between veins of old leaves was more obvious. Sometimes there are lobules in the new buds, and the lobules grow in a long and narrow direction, not in a wide direction. Zinc deficiency not only affects the growth of shoot, but also affects the development of lateral roots.

Second, the incidence.

There are five serious situations: first, the old orchard entering the full fruit stage is seriously ill because of its large fruit load; Second, the former waterlogged land and the arid orchard that can't be watered; Third, orchards that do not pay attention to balanced fertilization of nitrogen, phosphorus, potassium and trace elements; Fourthly, the orchards harmful to nematodiasis and root rot are neglected; The fifth is the orchard with extensive management. All the above situations fundamentally lead to the decline of tree vigor, the decline of root absorption and transportation capacity, and the occurrence of yellow leaves.

Third, the cause of the disease

Through symptom analysis and investigation, the causes of kiwifruit yellow leaf disease in our county are various. First of all, drought and water shortage in orchards affect nutrient absorption. Secondly, the overload of fruit trees last year made the trees weak, which led to the lack of elements and caused yellow leaf disease. Element deficiency is mainly iron deficiency, magnesium and zinc, especially iron deficiency. Third, the harm of nematodiasis and root rot causes the ability of root system to absorb nutrients to decrease, resulting in short plants on the ground and yellow and weak branches and leaves. Especially when the three reasons coexist and mix, it is more difficult to prevent and control.

Four, pollution-free prevention and control technology

(1) Prevention and control of filariasis

1. Strengthen seedling quarantine, prevent the circulation of infected seedlings, and do not plant infected seedlings.

2. Choose wild kiwifruit varieties resistant to nematodes as rootstocks, such as Actinidia arguta, and don't make continuous cropping in the nursery.

3. Promote the construction of standardized gardens, and adopt (pollution-free) standardized scientific management from seedling raising to fruit unloading. For example, bio-organic fertilizer (0.5 ~ 1kg/ hole for young trees and 0 ~ 2 kg/hole for adult trees) should be vigorously promoted to enhance tree vigor and improve tree disease resistance.

4. Results Root-knot nematodes were found in the garden with 65,438+00% dichlorvos or Kelantan and 3% carbofuran granules, 3 ~ 5kg per mu. If the damage is serious, root-knot nematodes should be thoroughly uprooted or deeply ploughed 5 ~ 50cm under the crown every three months.

5. Intercropping gramineous herbaceous low-stalk crops that are not infected with nematodes, such as green manure and pasture.

(2) Prevention and control of root rot

1. Establish a drainage system to eliminate stagnant water.

2. Plant disease-free seedlings, and soak roots and root necks with 30% DT glue suspension 100 times for 3 hours.

3. It was found that the diseased plants were completely destroyed by roots, and the soil was fumigated and disinfected with methyl bromide.

4. Use 90% crystal trichlorfon 150 ~ 30 times solution and add 5 kg bran to trap and kill underground pests.

5.30% DT colloidal suspension 100 times solution 0.3kg/ plant or 40% carbendazim 500 times solution 0.5kg/ plant or 50% carbendazim 800 times solution interval 15 ~ 20 days, and it is better to irrigate the roots continuously for 2 ~ 3 times.

(3) Prevention and control of element deficiency diseases

1. Combine pruning with bud wiping, flower thinning and fruit thinning, cut off diseased branches and vines, wipe off diseased buds, reasonably leave flowers and fruits, and avoid overloading the fruit trees, making them weak and reducing their disease resistance.

2. Pay attention to balanced fertilization, combined with watering, pay attention to increasing potassium chloride or potassium sulfate while applying sufficient nitrogen and phosphorus (phosphate fertilizer should not be applied excessively), and keep the orchard yield of 7 kg per mu. Ammonium sulfate, ammonium acetate, distiller's grains, vinegar grains, decomposed organic fertilizer, biological potassium, biological organic fertilizer, etc. When added to alkaline soil, it can enhance tree vigor and improve disease resistance.

3. Trace elements can be applied to the soil, and ferrous sulfate 1kg, zinc sulfate 2kg, magnesium sulfate or bischofite 1 ~ 2 kg can be applied per mu.

4. Foliar spraying of trace elements can be carried out by spraying 0.2% ~ 0.4% ferrous sulfate, 0.3% zinc sulfate and 0.3% ~ 0.5% magnesium sulfate every 7 ~ 10 days for 2 ~ 3 times continuously, and the foliar spraying effect is better before flowering.

The occurrence and harm of yellow leaf disease can be effectively controlled by using the above three methods at the same time or alternately in orchards where element deficiency, nematode disease and root rot are mixed.

Punch a small hole with a depth of 10 mm and a diameter of 2.5 mm at the base of the stem of a fruit tree with yellow and white leaves, and insert a microporous sustained-release syringe filled with injection. About ten days later, the yellow leaves turned green again, and the dying fruit trees miraculously revived. This is a national patent product finally developed by experts of Yangling Jiameizi Green Fertilizer Co., Ltd. after more than ten years of scientific research. Can be injected into fruit trees, garden trees, flowers and other crops. The advent of "Jiameizi" series products has finally made fruit trees yellow into a real "nemesis". At present, the product has been widely recognized by fruit growers and gardeners in Shaanxi and surrounding provinces.

According to Guo Nong Hou of Bai Ya Town, zhouzhi county, his kiwifruit garden was yellowed in a large area a few years ago, and various chemicals were sprayed in the soil, but to no avail. The local drugstore also has products such as drilling needles and pills, which have a good effect, but he has been afraid to use them because they are too big and too deep and hurt trees. So when he sells kiwifruit every year, he is very worried, either he can't sell it or he can't sell it at a price. As soon as the kiwifruit leaves this spring, he hurried to the garden to see that the newly grown leaves were still yellow and white, which was more serious than in previous years. He was anxious and asked around before he knew that a new fruit tree nutrient solution called "Jiameizi" had a good effect. What's more gratifying is that it is a national patent product, and the micro-hole slow-release injection technology has the advantages of small drilling, shallow drilling, fast healing and no damage to trees. At that time, he himself took the attitude of "a dead horse is a living horse doctor" and used all his two acres of garden. Amazingly, it is very advanced, and it doesn't hurt the tree. Within three days, the original white veins began to turn green, and in five days, the leaves were nearly half green. After 15 days, kiwi fruit tree, which was about to wither and die, all turned dark green, and the trees were surprisingly strong.

This product was successfully developed by many experts of Yangling Jiameizi Green Fertilizer Co., Ltd. after more than ten years of scientific and technological research. It has two national patents, including the patent of microporous sustained-release syringe for trees and the patent of fruit tree nutrient solution. Among them, the micro-hole of the micro-hole sustained-release syringe for trees is only 2.5 mm, and the shallow hole is only 10mm, so it can be drilled with nails, which overcomes the shortcomings that the previous syringe needs a hand drill or an electric drill and the hole is too large to heal. It is worth mentioning that the nail fills the hole, and after the nutrient solution is injected, the wood at the hole can be closed automatically, and the cortical wound can heal completely and quickly without damaging the trees. Fruit tree nutrient solution is composed of mineral elements and special natural bioactive substances, which can regulate the physiological functions of trees, promote flower bud differentiation, eliminate fruits in different years and prolong the full fruit period. Enhance metabolism, promote growth control, prevent falling flowers and fruits, accelerate fruit expansion and coloring, optimize fruit shape, increase production and improve quality. Improve the self-immunity of trees and prevent root rot, canker, scab, rot, early defoliation and jujube witches' broom. At the same time, it can quickly balance the nutrition of trees, reduce the fertilizer input by more than 80%, increase the yield by more than 30%, and prevent or radically cure physiological diseases such as yellow leaves, yellow fruits, lobules, bitter pox, pockmarked seeds, fruit shrinkage, fruit cracking and Shui Xin.

Kiwifruit planting technology: How to fertilize the base fertilizer for planting kiwifruit:10-110 After picking the fruit in the later stage, immediately dig an annular ditch with a depth of 35cm and a width of 30cm around the tree tray or border along the plant line, apply decomposed organic fertilizer, oil cake and phosphate fertilizer, and then pour the soil. Apply residual fertilizer 1500-3000 kg, oil cake 150-200 kg and phosphate fertilizer 100- 150 kg per mu. 2. Topdressing before germination: from late February to early March, apply quick-acting fertilizer mainly nitrogen fertilizer, combined with irrigation, and apply urea 6- 10 kg per mu. 3. Fertilization during fruit expansion: One week after flowering (from late May to mid-June), apply compound fertilizer 100- 150g and human and animal manure 6- 10kg to each plant. 4. Fertilization in the later stage of fruit growth: from late July to early August, apply quick-acting phosphorus and potassium fertilizer, control the amount of nitrogen fertilizer to prevent the branches from growing slightly, and apply 200-250g of phosphorus and potassium fertilizer to each plant. 5. Topdressing outside the root: topdressing outside the root with 0.3% potassium dihydrogen phosphate or 0.2% urea solution at full flowering stage and fruit setting stage.

How to plant red-hearted kiwifruit Planting technology: Cutting

Dormant branches are thin and take root early after cutting; Dormant branches take root late when they are thick, and they are easy to lose water and wither in adverse weather conditions. However, it is difficult to cultivate strong seedlings by using too thin branches as cuttings, and branches with a diameter of 8 ~ 10 mm should be selected as cuttings.

Planting method of red-hearted kiwifruit: cutting

Kiwi fruit tree is usually pruned from 10 to mid-February, and cuttings can be cut with pruned branches. If the cuttings are picked early but late, protective agent can be coated on the cuttings, and then the cuttings can be collected and stored with plastic film, or stored at 5℃ or in the open air and cool place. No matter which method is used for preservation, it is necessary to prevent the cuttings from losing water and drying up. The cutting period cannot be later than April. The soil of cutting bed should be clean fine sand or sand.

1. Cutting treatment: In order to improve the seedling rate, the cuttings of red-heart kiwifruit were cut and soaked in 50 times of rooting promoter for 20 hours to make them fully absorb water and promote rooting. When wooden cases are used as bed inserts, the cuttings can be shorter, about 10 cm is appropriate; The cuttings should be longer, 15 ~ 20 cm, and the cuttings should be inserted deeply.

2. Plant pots in time: After the cuttings take root, you can plant pots. Potted soil has good water retention performance, otherwise it will affect the growth of cutting seedlings. At the initial stage of transplanting, the pot diameter should be 10.5 ~ 12 cm. As the seedlings grow, they should be transplanted into large pots in time. After the new buds of cutting seedlings are elongated, they need to be supported by columns as soon as possible.

Planting method of red-hearted kiwifruit: artificial pollination

Kiwifruit with red heart can bear large fruit after artificial pollination. Fruits without seeds will drop fruit; The more seeds, the bigger the fruit.

Can Kiwifruit be planted in Kuitun, Xinjiang? According to the situation, it is suggested that kiwifruit varieties should be selected before introduction and trial planting, and then the suitable environment should be known.

The wild areas are mainly northern Shaanxi, Gansu, Henan, southern Guangdong, Guangxi, southwestern Fujian, Guizhou, Yunnan, Sichuan and You Jiang, and all provinces are in Youjiang River Basin.

Kiwifruit has several warm and humid climates, that is, subtropical or temperate humid and semi-humid climate, mainly distributed in north latitude 18 ~ 34 degrees. The wide-area average temperature is about11.3 ~16.9℃, the extreme high temperature is 42.6℃, the extreme low temperature is about 20.3℃, 10℃, and the effective accumulated temperature is 4500 ~ 5200.

The temperature between kiwifruit populations requires that the average temperature of kiwifruit in China is 4 ~ 20℃, and the development stage of kiwifruit is affected by the temperature in the range of 4 ~ 20℃. The results showed that the temperature of Actinidia deliciosa increased by about 65,438 00℃, and the bud germinated only at 65,438 05℃, and then it took 20℃ to bear fruit. When the temperature drops to about 65438 02℃, the leaves fall.