How can high-yielding vegetables in greenhouses? No matter which kind of vegetables, if you want to obtain high-yield and high-yield products, you have to do a good job of fertilization management. Only in this way can you achieve greater economic benefits, so today Xiaobian says that greenhouse vegetables High-yield fertilization technology, I hope to help everyone.
First, early base fertilizer
(1) Winter and spring greenhouse vegetables, land preparation in late September.
(2) When the land is prepared, apply 5,000 kilograms of fully-fertilized farmyard manure per acre, then turn it over 30 centimeters to mix the organic fertilizer and the soil evenly.
Second, skillfully planting fertilizer
(1) When the fruits and vegetables are planted in October-November, a 15-20 cm deep ditch is opened between each of the two planting ridges, and compound fertilizer and calcium fertilizer are applied to the ditch. 40-50 kg of compound fertilizer and 15-20 kg of calcium fertilizer are applied per mu, while the bottom water is poured into the ditch, and then the ditch is buried.
(2) When planting seedlings, apply a small amount of diammonium phosphate every two plants, and apply about 40 kg per mu.
Third, skillfully use the package nutrient water soluble fertilizer for top dressing
(1) Winter top dressing, in general, organic activated nutrition is better than mineral nutrition.
(2) Pursuing Jiamei profit per mu of land to 15-18 kg.
(3) Before topdressing, dissolve the fertilizer in water first, then apply the fertilizer solution with water.
(4) Generally, every other time, water is poured once.
Fourth, the use of bio-organic and inorganic compound fertilizer
(1) Bio-organic use 120 kg per mu as the base fertilizer, and apply or ditch when the vegetables are planted.
(2) Inorganic compound fertilizer is used for 40 kg per mu for topdressing, shallow ditch is applied, and water is buried after burying.
Five, smart gas fertilizer
(1) Carbon dioxide top dressing is carried out at 9-11 am on a sunny day. Carbonammonium + sulfuric acid or baking soda + sulfuric acid can be used to produce carbon dioxide after mixing, so that the carbon dioxide content in the shed reaches 1000 mg/kg.
(2) Do not ventilate when applying carbon dioxide. Appropriate ventilation after 1.5-2 hours of application.
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