Compound fertilizer special for broccoli

Abstract

The invention discloses a compound fertilizer special for broccoli. The compound fertilizer is prepared from the following raw materials in parts by weight: 20-30 parts of ammonium nitrate, 15-20 parts of potassium phosphate, 15-22 parts of potassium chloride, 30-40 parts of plant ash, 15-20 parts of young grass, 20-30 parts of pig manure, 15-20 parts of fruit peels, 1-2 parts of white sugar, 1-3 parts of brown sugar, 1-3 parts of an enzyme microorganism quick decomposing agent, 5-6 parts of attapulgite, 8-13 parts of lignite, 5-10 parts of phosphate rock powder, 15-20 parts of bentonite, 10-13 parts of kaolin, 0.5-2 parts of enzyme microorganism, 10-13 parts of humus, 15-18 parts of calcium superphosphate, 6-8 parts of magnesium sulfate, 2-4 parts of zinc sulfate, 3-5 parts of copper sulfate and 2-4 parts of sodium molybdate. The compound fertilizer disclosed by the invention accords with an absorption law of nutrients by the broccoli and is high in fertilizer utilization ratio.

Description

technical field [0001] The invention relates to the technical field of broccoli compound fertilizer, in particular to a special compound fertilizer for broccoli. Background technique [0002] A number of agricultural studies have pointed out that although chemical fertilizers provide sufficient nutrients for broccoli, they ignore the supply of organic matter. In the absence of sufficient organic matter in the soil where broccoli is grown, it is difficult to form aggregates and the adhesion between soil particles is weakened. , and then reduce the water retention capacity of the soil. When the soil does not have enough water, even if the fertilizer quality is high, it is not easy to release nutrients under favorable environmental conditions. adverse effects. In addition, excessive application of chemical fertilizers will also have a serious impact on the environment. When excessive chemical fertilizers are applied, the nutrients that have not been absorbed by the soil will b...

AI Technical Summary

Problems solved by technology

[0002] A number of agricultural studies have pointed out that although chemical fertilizers provide sufficient nutrients for broccoli, they ignore the supply of organic matter. In the absence of sufficient organic matter in the soil where broccoli is grown, it is difficult to form aggregates and the adhesion between soil particles is weakened. , and then reduce the water retention capacity of the soil. When the soil does not have enough water, even if the fertilizer quality is high, it is not easy to release nutrients under favorable environmental conditions. adverse effects

In addition, excessive application of chemical fertilizers will also have a serious impact on the environment. When excessive chemical fertilizers are applied, the nutrients that have not been absorbed by the soil will be lost with the water, which cannot meet the requirements of the whole growth period of broccoli. The law of nutrient absorption, compound fertilizer with high fertilizer utilization rate has become a technical problem that needs to be solved at present