Can I plant wax gourd with butachlor?

After using butachlor, wax gourd can be planted. Before planting, use 60% EC150g and 50kg of water to spray soil evenly.

Cultivation method of wax gourd

The cultivation methods of wax gourd can be divided into three types: ground wax gourd, greenhouse wax gourd and frame wax gourd.

1, sweet gourd

Plants grow on the ground with sparse row spacing. Generally, about 300 plants are planted per mu, and the management is relatively extensive. Basically, let the stems and vines grow or remove the lateral vines before fruiting, and grow at will after fruiting. Its advantages are less labor and low cost. The disadvantage is that the melon shape is not good, and it is often helped; Otherwise, the abnormal fruit rate is high; Pericarp is easily damaged by external environment, which affects the storage resistance; Low utilization rate of light energy, uneven fruit size and low yield per unit area. This method is only applicable to the varieties of wax gourd with gray skin sold in the island, but not to the varieties with high requirements for goods transported to the north or exported, such as "Green Winter", "Black Winter" and "Qingza 1".

2. shed melon

After painting vines, draw vines with bamboo shed, which can be divided into high shed and low shed. High shed is generally 150-200 cm high, low shed is generally 60-80 cm high, and shed width is 250-300 cm. In Hainan, melon farmers generally use low sheds. The vines on the front side of the plant were removed, and the stems and vines grew randomly after entering the shed. The fruit setting of greenhouse wax gourd is better than that of ground wax gourd, the fruit size is more uniform, and the yield per unit area is generally higher than that of ground wax gourd, but the plane area is basically used, which is not conducive to close planting. Generally, it can only be interplanted in front of melons and vines, which can't make full use of space, and there are many scaffolding materials and high cost. In recent years, in order to save materials, cost and labor, an improved mesh scaffold has been popularized: first, a basic scaffold is built with wooden stakes and iron wires, and then a Teflon mesh is woven at the overlapping part. At least three nylon nets can be used, which is very convenient and labor-saving.

3, frame wax gourd

Parentheses come in many forms. There is a "dragon": that is, one pile per plant, with a height of 130- 150 cm, which is fixed with horizontal bamboo; There is a "herringbone frame"; There are "one-star drum frame longan" and "four-star drum frame longan": that is, three or four bamboo poles are used to build a drum frame, and each drum frame is fixed with horizontal bamboo, one for each plant. Although there are various planting forms of wax gourd, they are all combined with plant regulation, which makes better use of space, improves fruit setting rate, and makes the fruit size uniform, which is conducive to improving yield and quality. It is also beneficial to intercropping and interplanting, increasing the number of multiple cropping; Moreover, compared with greenhouse wax gourd, it saves shelf materials and reduces the cost. Under the current conditions, wax gourd rack is a more reasonable and scientific one among the three cultivation methods.

Cultivation season, sowing and seedling raising and planting density

1, farming season

Wax gourd likes heat resistance. In order to obtain high yield, it should be planted in a climate suitable for fruit setting and fruit development. Climatic conditions have the greatest influence on the fruit setting rate of wax gourd, so special attention should be paid to the seasonal arrangement. Sunny weather, high temperature, high humidity and other conditions are conducive to fruit setting; Dry air, low temperature and rainy days, less insect activity, which is not conducive to pollination; And reduce the pollination ability of stigma, so the fruit setting is poor. According to the characteristics of wax gourd's demand for light and temperature conditions, Lingshui, Sanya, Ledong and other cities and counties in the south of Hainan, because the temperature in winter and spring is above 20℃ and the sunshine is sufficient, seeds can be planted all winter and spring, and they can blossom and bear fruit normally. In northern cities and counties such as Wenchang, Chengmai, Qiongshan, Ding 'an and Lingao, cold and rainy weather often occurs in winter and spring, especially in the first ten days of 65438+ 10 to the last ten days of February. Therefore, special attention should be paid to prevent the planted wax gourd from flowering and fruiting during this period. In addition to climate factors, we should also pay attention to market factors when sowing wax gourd. Because the winter melon planted in Hainan, especially in winter and spring, most of the products are sold to overseas markets and Hong Kong and Macao markets. Therefore, in the breeding season, we should also pay attention to avoiding inland provinces, especially Guangdong and Guangxi provinces. Only in this way can the cultivated wax gourd achieve the goal of high yield and high efficiency. In general, as long as the winter melon cultivated in Hainan is harvested from late February to early May, its price is higher, and vice versa. Therefore, mid-September to1early October in southern Hainan is the suitable sowing date for 65438+ winter and spring melon cultivation. In other areas, 10 is the best sowing date from mid-September to early October, and 10 is the best sowing date from early February to early October. If you sow in mid-June from 5438+ 10 to the end of June 165438+ 10, it is very difficult to set fruit because the flowering and fruiting period is mostly affected by the low temperature and rainy weather in June 5438+ 10-2. Even if you can set fruit, the fruit will grow slowly, develop poorly and have a high rate of deformed fruit.

2. Sowing and raising seedlings

Winter and spring cultivation of wax gourd in Hainan is often affected by low temperature, so it is appropriate to use nutrient pots to raise seedlings. The required nutrient soil should be prepared in advance, and it can be made by mixing dried and screened fertile garden soil, decomposed pigs, cow dung residue, chaff ash or coconut bran. The volume ratio of the three is about 6: 2: 2, and a small amount of NPK compound fertilizer can be added, and the dosage should be controlled at 0.2%-0.3%, and fine mixing is required to prevent damage to seeds and roots. Generally, wax gourd seeds are soaked in warm water at 50-55℃ for 10- 15 minutes (while stirring), and then soaked at room temperature for 10- 12 hours, preferably around 30℃, to accelerate germination. Soaking seeds for a long time makes them germinate faster and more orderly, mostly in one and a half to two days; The soaking time is short and the germination potential is poor. Seeds with smooth seed coat (such as green-skinned wax gourd seeds) are prone to lack of oxygen and rotten seeds during germination due to poor seed permeability, and the germination rate is low. Therefore, for this kind of seeds to accelerate germination, it is necessary to scrub the seed coat with fine sand to remove adhesion and put it at a constant temperature of 28-30℃ to accelerate germination. Before germination, wash the seeds 1 time with clear water every morning and evening, and filter the water in time before accelerating germination. If there is no constant temperature equipment, it is safer to directly sow in seedling bags or seedbeds after soaking in Sichuan. According to the author's experiment, soaking seeds with 100- 150ppm gibberellin can make seeds germinate quickly and orderly. The day before sowing, the nutrient soil in the bowl should be thoroughly poured, and the sowing depth should be 2-3 cm. Each nutrient bowl should be seeded with 1-2 germinated seeds, with the seeds lying flat or the bud tips facing upward. After sowing, cover with sunshade net or straw. In case of cold wave or rainy weather, plastic film should be covered. Pay attention to watering after sowing and before emergence, but not too much water to prevent roots from rotting. Just keep the soil moist. When about 70% seedlings emerge, the mulch should be removed in time. Properly control water before seedlings are sad to promote root growth; After the heart is broken, the nutrient soil is often kept in a semi-dry and semi-wet state, so that the seedlings can grow steadily. It can be transplanted to the field in about 25-30 days, and 2-3 days before planting, the seedlings can be thoroughly watered with 10% diluted human excrement water and 80% zineb 800 times solution or 75% chlorothalonil 600 times solution, so as to achieve dual-purpose transplantation of fertilizer and medicine.

3. Planting density

The planting density of wax gourd varies with varieties, cultivation methods and cultivation seasons. The yield per unit area of small wax gourd consists of three aspects: the number of plants per mu, the number of fruits per plant and the weight of single fruit. Proper close planting can increase yield. Most large wax gourd varieties are one plant and one fruit, and its yield per unit area is composed of two factors: the number of plants per mu and the weight of a single fruit. Therefore, proper close planting should be ensured on the basis of single fruit weight. The vine leaves of sweet potato plants grow on the ground, which is not convenient for plant adjustment and not suitable for close planting; Winter melon in greenhouse basically grows in a plane, which is not conducive to close planting; Wax gourd can grow in space, and the combination of plant regulation and vines is beneficial to close planting. At present, most of the winter melon varieties planted in Hainan are large-scale varieties. Flat shed cultivation is generally about 350 cm wide (even ditch), and two rows are planted with a spacing of 70-80 cm, with about 500 plants per mu. The general row spacing is 150×(70-80) cm, and about 600 plants can be planted per mu. Generally, sweet potato beds are about 400-500 cm wide (even furrows) and planted in two rows, with a spacing of about 80- 100 cm and about 300 plants per mu. The planting density of wax gourd is also related to the level of fertilizer and water management. Adequate fertilizer, convenient irrigation and drainage, high management level, mainly fruit planting, and strive for high yield and high quality, but not too dense. On the basis of removing all the lateral vines, topping the main vines can be more dense than not topping.