Pesticides-Plant Growth Regulator Pesticides-Plant Growth Regulator,Hydrogen Cyanamide 50% Solution,Hydrogen Cyanamide 50% Solution 420-04-2,High Effect Hydrogen Cyanamide 50% Solution Ningxia Darong Chemicals & Metallurgy Co., Ltd. , https://www.darong-cyanamide.com
Nutritional preparation: Cauliflower has weak root system during germination, requires nutrient soil with sufficient nutrient, good permeability, and sufficient moisture; young roots have adaptability to increase when seedlings are divided, and nutrient soil needs to have certain viscosity to prevent secondary transplanting or colonization. When scattered. Therefore, when preparing a dietician, it is advisable to use 4 parts of the suma soil that has not been planted with crucifer crops within 2 to 3 years, 4 parts of decomposed horse manure or chicken manure, and 2 parts of peat or stove slag. Each cubic meter of nutrient soil needs to be added 2 to 3 kg of compound fertilizer and 10 to 20 grams of borax. When the nutrient soil for split seedlings is formulated, it uses 4 parts of decomposed horse dung or chicken manure and 6 parts of farmland soil to increase the viscosity of the nutritionist. If the nutrient soil is too heavy, the proportion of organic fertilizer should be appropriately increased. Each cubic meter of nutrient soil plus compound fertilizer 3 to 5 kg, 20 to 40 grams of borax. After the preparation of nutritious soil can be divided into nutrient bowls or seedbeds, timely sowing. After the emergence of 3 to 4 true leaves should be timely seedlings. In spring, seedlings are mainly inoculated, and the seedling age is appropriate for about 70 days. In the autumn, the nursery is in the high temperature season. The seedbed should be shaded, cooled, prevented from grassland, and mainly prevented from disease. The seedling age is about 40 days.
2 heavy basal fertilizer, timely planting: In order to meet the growing demand of broccoli on the fertilizer and water requirements, generally choose fertile, loose, water and fertility strong loam, deep plowing about 30 cm. Combine the cultivated land and apply organic fertilizers that are cooked or spread. In early spring, the cultivation period of open cultivation is short. About 45,000 kg of organic fertilizer, about 450 kg of compound fertilizer, 750 kg of plant ash, and 750 g of borax can be applied per hectare. If the soil lacks molybdenum, 150-300 g ammonium molybdate per hectare will be dissolved in water and mixed with organic fertilizer. Ground temperature can be planted when the temperature is above 5°C in the spring.
3 clever application of dressing: after planting slow seedlings, combined with pouring slow-release seedlings water maturity of diluted fecal water once, 750 kg per hectare. Cultivate the seedlings to promote the development of roots and flower bulbs. When the diameter of the flower ball is 3 to 5 cm, the seedlings are finished and the fertilizer is applied in a timely manner. During the expansion of the bulb, the soil should be kept moist. Usually, the water is poured once every 5 to 7 days, followed by 10 to 15 days. After each application, 1,500 kg/ha of cooked or excreta fertilizer is applied to the soil. The application of nitrogen, phosphorus and potassium compound fertilizers was sprayed with 0.3% potassium dihydrogen phosphate, 0.05% borax, or 0.01% ammonium molybdate to prevent premature senescence and improve yield and curd quality.
Fertilizing techniques of open cauliflower
1 Cultivate strong seedlings: The varieties suitable for spring cultivation are mainly Japanese snow-capped mountains and Swiss snowballs; the main fine varieties suitable for autumn cultivation include Japanese snow-capped mountains, Dutch snowballs, and Baifeng.