Foliage fertilizer is effective for fruit expansion. What foliar fertilizer is used during fruit expansion?

Foliage fertilizer has a good effect on fruit expansion. What foliar fertilizer is used during fruit expansion? Hello, I'm glad to answer your question. There are many kinds of foliar fertilizers, the main function of which is to provide nutrients needed by plants in the growth process quickly. At present, there is a foliar fertilizer containing a lot of elements on the market. If it is a crop in the fruit expansion period, mainly potassium supplementation, potassium foliar fertilizer can be used. I hope it will help you and I hope it will be adopted.

What is foliar fertilizer? Is the mixing ratio of medicine and water. If it is a solid drug, it is measured in weight units. If it is a liquid medicine, it is measured by volume. For example, potassium dihydrogen phosphate is a solid particle, and its weight unit is 1: 1000. 1000 is the weight of water1g:1000g (1kg), 10000g( 10000kg),1000g: 10ml:10000ml (10kg),100ml:100000ml (10000kg).

First, for the purpose of foliar absorption, the nutrients needed by crops are directly applied to foliar fertilizer, which is called foliar fertilizer.

Foliage fertilizer is a kind of fertilizer that applies nutrients to the surface of crop leaves and exerts its basic functions through the absorption of leaves. The leaves of plants have two layers of epidermis, which are composed of fine epidermis. The cells on the epidermis have cuticle and wax outside, which can protect mesophyll cells under the epidermis from adverse external conditions. There are many tiny stomata on the leaves to exercise the function of gas replacement. Studies have shown that the stratum corneum is composed of a long-chain fatty acid polymer with hydroxyl and carboxyl groups. The molecular gaps and hydrophilic groups of hydroxyl and carboxyl groups on this polymer can allow aqueous solution to penetrate into leaves. Of course, the pores on the surface of the leaves are more convenient channels for foliar fertilizer to enter the leaves. Urea in chemical fertilizer can soften the cuticle of epidermal cells and accelerate the penetration of other nutrients, so urea can soften the cuticle of epidermal cells and accelerate the penetration of other nutrients, so urea becomes an important component of foliar fertilizer.

Second, what are the benefits of applying foliar fertilizer to farmers?

1. Supplement the deficiency of root fertilization

When it is inconvenient to fertilize crops' roots, such as the late growth stage of crops, the root activity decreases and the fertilizer absorption capacity decreases; Or when the soil environment is unfavorable to crop growth, such as excessive water, drought, soil acidity and alkalinity, etc., the absorption of crop roots is blocked and crops need to recover quickly. If the root application method can not meet the needs of crops in time, only foliar spraying can quickly supplement nutrition and meet the needs of crop growth and development.

2. Quick nutrition supplement

In the process of crop growth, crops show a certain lack of nutrients. Because it takes a certain time for nutrients to be absorbed by crops by soil fertilization, the symptoms of element deficiency in crops cannot be alleviated in time. At this time, foliar fertilizer can make nutrients quickly enter the plant through the leaves and solve the problem of nutrient deficiency.

3. Give full play to fertilizer efficiency

Some fertilizers, such as phosphorus, iron, manganese, copper and zinc. If it is applied as root, it is easy to be fixed by soil, which will affect the application effect, while foliar spraying is not limited by soil conditions. For another example, some deep-rooted crops, such as fruit trees, absorb less nutrients, so traditional fertilization methods are difficult to be applied to the absorption parts of roots and cannot give full play to their fertilizer efficiency, while foliar spraying can achieve better results.

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Various trace elements are essential nutrients in the process of crop growth and development, but the application amount is very small, such as molybdenum fertilizer, which is only tens of grams per mu. If root application is adopted, it is not easy to apply them evenly. Only foliar spraying can be economical and effective. According to the research and calculation, the utilization rate of boron by spraying boron fertilizer on the leaves of general crops is 8. 18 times that of basic application. From the perspective of economic benefits, foliar spraying is more economical than root application.

5. Reduce soil pollution

Applying a large amount of nitrogen fertilizer to soil is easy to cause nitrate accumulation in groundwater and vegetables, which is harmful to human health. About 75% of nitrate absorbed by human beings comes from vegetables. If foliar fertilization is adopted and the amount of soil fertilization is appropriately reduced, the nitrate content in plants and the residual mineral nitrogen in soil can be reduced. In saline soil, soil fertilization may increase the concentration of soil solution and aggravate soil salinization. Taking foliar fertilization measures not only saves the amount of fertilization, but also reduces the pollution to soil and water, which is an effective fertilization technology for killing two birds with one stone.

Third, the main functional characteristics of foliar fertilizer:

1. Fast absorption. After soil fertilization, various nutrients are first absorbed by the soil, and some fertilizers go through a transformation process in the soil, and then are absorbed by crop roots through ion exchange or diffusion, and then reach the leaves through the vascular bundles of roots and stems. Nutrient transport is long and slow. Through foliar fertilization, various nutrients can be quickly absorbed by crop leaves, directly enter plants from the leaves and participate in crop metabolism. So its speed and effect are faster than soil fertilization. According to research, the rate of fertilizer absorption by leaves is about 1 times faster than that by roots.

2. The effect is very strong. The advantage of foliar fertilizer is fast absorption, because nutrients directly enter from leaf products, which can greatly increase the nutrient elements in crops in a short time, quickly alleviate the fertilizer shortage of crops and give full play to the maximum benefit of fertilizer. Foliage fertilizer can effectively promote the progress of various physiological processes of crops, significantly improve the intensity of photosynthesis, improve the activity of enzymes, promote the synthesis, transformation and transportation of organic matter, be conducive to the accumulation of dry matter, and improve the yield and quality.

3. Save dosage: foliar fertilization is generally less, especially trace element fertilizers such as boron, manganese, molybdenum and iron, and root fertilization usually needs a large amount to meet the needs of crops. However, foliar fertilizer is sprayed on crop leaves, which is generally one-tenth or one-tenth of soil fertilization, and satisfactory results can be achieved.

4. High efficiency: foliar fertilizer can be used efficiently, which is one of the most effective means to save fertilizer. When the soil is used for fertilization, the loss of fertilizer is serious due to the volatilization, loss and leakage of fertilizer. Due to the fixation of soil, some nutrients are fixed by soil and become invalid nutrients, while some nutrients are absorbed by weeds in the field. Foliage fertilizer reduces the process of fertilizer absorption and transportation, reduces the waste and loss of fertilizer, and has high fertilizer utilization rate.

Fourth, the problems that should be paid attention to in the application process of foliar fertilizer

1. Select the appropriate spraying concentration. The concentration of foliar fertilizer is directly related to the spraying effect. If the solution concentration is too high, it is easy to burn crop leaves after spraying. The solution concentration is too low, which not only increases the workload, but also fails to meet the requirements of supplementing crop nutrition. Therefore, in application, fertilizer should be different from crop to crop, according to local conditions.

2. Choose a suitable spraying method. The preparation solution should be uniform, and the spraying fog point should be uniform and delicate, and the spraying times should be determined according to the needs.

3. Grasp the spraying period. The period of foliar fertilization should depend on the demand for nutrient elements in different growth and development stages of various crops, and the best effect can be achieved by spraying when the demand for nutrient elements is the most urgent.

4. Choose the appropriate spraying time. The effect of foliar fertilizer is directly related to temperature, humidity and wind power. For foliar spraying, it is best to choose a calm cloudy day or before 9: 00 am, with high humidity and small evaporation, and it is most suitable after 4: 00 pm. If it rains 3-4 hours after spraying, supplementary spraying is needed.

5. Choose a suitable spraying place. Because of different metabolic activities, the upper, middle and lower leaves and stems of plants have different abilities to absorb nutrients from the outside, so it is necessary to choose a suitable spraying place.

6. Add additives. When spraying fertilizer solution on leaves, additives should be added properly to improve the adhesion of fertilizer solution to plant leaves and promote the absorption of fertilizer.

7. Combine soil fertilization. Because roots have a larger and more perfect absorption system than leaves, it is determined that more than 10 foliar fertilizer is needed to reach the total amount of nutrients absorbed by roots. Therefore, foliar fertilizer can not completely replace the root fertilization of crops, and must be combined with root fertilization.

The application amount of foliar fertilizer is small, the effect is quick and obvious, and the utilization rate of fertilizer is improved. It is an economical and effective fertilization measure, especially spraying some trace elements on the leaves is unique. However, we should also see that foliar fertilization is troublesome, requires a lot of labor, and is easily affected by climatic conditions. Because of different crop types and growth periods, the effect is also different. Therefore, foliar fertilizer technology must be correctly applied on the basis of root fertilization in order to give full play to the role of foliar fertilizer in increasing production and income.

Production of foliar fertilizer: Due to the low entry threshold, there are many manufacturers and varieties of foliar fertilizer on the market.

What foliar fertilizer is the best foliar fertilizer and which is a good foliar fertilizer can actually be simply understood as a water-soluble compound fertilizer, which is divided into macro-element, medium-element and trace-element foliar fertilizer according to the formula type, and trace-element foliar fertilizer is the most used of the three.

Rice foliar fertilizer, when to use foliar fertilizer? Pre-preparation for transplanting seedlings: Mix 5 kg of Fate balanced biological bacterial fertilizer into the nutrient soil of 360 square nursery to improve the soil environment, degrade harmful substances and increase beneficial bacteria!

Three leaves and one heart period: spraying fungicide to collect 100 g foliar fertilizer and 25g Amtrak to spray 360m2 to prevent diseases, enhance the disease-resistant immunity of crops, supplement nutrients, quickly restore the body function of crops and alleviate phytotoxicity!

4-5 days before transplanting: Spraying 100g broad-spectrum universal foliar fertilizer, spraying 360m2, promoting Miao Zhuang, developing root system, producing more new roots, and increasing disease-resistant immunity!

After transplanting: collect 5 kg of ultra-high nitrogen water-soluble fertilizer and spray it on 6-8 mu of land. Without turning green manure, the seedlings will be delayed soon!

Rice jointing stage: spraying 500g broad-spectrum universal foliar fertilizer once, spraying 15 mu of land+800- 1000 times of potassium dihydrogen phosphate to prevent rice physiological diseases and element deficiency!

Before booting stage: 500g of general foliar fertilizer, spraying 15 mu of land+800- 1000 times of potassium dihydrogen phosphate to increase rice plumpness, reduce empty shells and increase 1000-grain weight!

Zephate broad-spectrum universal foliar fertilizer, the core substance adenosine triphosphate enhances crop immunity, high disease resistance, high disease prevention, strong stress resistance, increased carbohydrate formation, increased dry matter and greatly improved yield!

What is foliar fertilizer? Is foliar fertilizer effective? Definition. The way of dissolving fertilizer in water, spraying it on leaves and absorbing nutrients through leaves is called foliar fertilizer. Foliage fertilizer is a fertilizer that directly applies nutrients needed by crops to leaves for absorption, which is called foliar fertilizer.

Advantages, short time. Quickly supplement the missing nutrition. Take effect quickly.

Insufficient: short fertilizer efficiency, unable to replace soil fertilizer.

What foliar fertilizer is good for peanuts? At present, foliar fertilizer is mainly sprayed with nitrogen, with a small amount of phosphorus and potassium fertilizer, or trace elements, pesticides and growth regulators. The best period of foliar fertilizer is the middle and late stage of soybean growth and development, which requires a lot of fertilizer; Avoid the scorching sun and spray once in the morning and once in the evening. If there is dew on the leaves when spraying fertilizer, the concentration of fertilizer solution will be reduced and the fertilization effect will not be achieved. If the fertilizer is sprayed under the scorching sun and high temperature, the air humidity is low, which not only consumes a lot of fertilizer liquid to volatilize, but also dries quickly after spraying, making it difficult for leaves to absorb, which will reduce the utilization rate of fertilizer. Sometimes "leaf burning" is caused by the rapid evaporation and increase of water in foliar fertilizer solution, and the fertilizer concentration needs to be adjusted according to the weather. Generally, it should be sprayed 1 ~ 3 times during the growth period, and the interval between each spraying should be more than 7 ~ 10 days. Highly volatile fertilizers (such as ammonia water and ammonium bicarbonate) cannot be used as foliar fertilizers.

Is foliar fertilizer used for grape germination? What foliar fertilizer should I use? Grape germination is not suitable for spraying foliar fertilizer because

(1) Little fertilizer is needed in the germination stage, and the nutrients needed in the germination stage of grapes are mainly supplied by the base fertilizer applied in the middle and early stage of the soil. Foliage fertilizer is generally sprayed during the growth period of branches and before flowering, which is helpful for fruit setting.

(2) To prevent overnutrition, it is a fragile period for grapes to grow in the budding stage of flowering. If nutrients are sprayed on the leaves at this time, it is easy to cause excess nutrients and burn buds, thus hindering the normal growth of grapes.

Spraying time of grape foliar fertilizer

(1) Before flowering, grapes are the key period for the growth of plants and stems. At this time, interval topdressing should be carried out to promote flowering, improve fruit setting rate and increase yield per plant.

(2) From flowering to maturity, the post-flowering stage is an important stage of grape expansion, coloring and sweetening, which is the peak of topdressing. Spray molar foliar fertilizer every 15 days to promote absorption, and the time is appropriate in the morning and evening.

What is foliar fertilizer? Foliage fertilizer is a supplement for plants to absorb nutrients, so as to make up for the lack of nutrients absorbed by roots. Foliar fertilization cannot replace soil fertilization.

The principle of foliar fertilizer first defines the structure of leaves, and the basic structure of leaves is leaves, petioles and stipules. Leaves include epidermis, mesophyll and veins. Mesophyll is generally divided into palisade tissue and sponge tissue (C3 plants are different from C4 plants).

Gymboree foliar fertilizer is divided into the following two types: soybean amino acid foliar fertilizer and brown sugar amino acid foliar fertilizer.

Foliage fertilizer is a fertilizer that directly applies nutrients needed by crops to leaves for absorption, which is called foliar fertilizer. Foliage fertilizer is a kind of fertilizer that applies nutrients to the surface of crop leaves and exerts its function through the absorption of leaves. The leaves of plants have two layers of epidermis, which are composed of epidermal cells. There are cuticles and wax on the outside of epidermal cells, which can protect mesophyll cells under the epidermis from adverse external conditions. There are many micropores on the surface of leaves to perform gas replacement function.