Preparation method of lettuce special fertilizer capable of improving soil structure

Abstract

The invention discloses a preparation method of a lettuce special fertilizer capable of improving a soil structure. The preparation method comprises the following steps: performing homogenization treatment on sweet potato starch, carrageenan and water, adding hydroxypropyl distarch phosphate, mixing uniformly, adding grape seed oil, performing high-pressure shearing, adjusting the pH value of a system with sodium hydroxide, adding an ethanol solution, stirring uniformly, adding succinic anhydride, stirring, adjusting the pH value of reaction liquid with hydrochloric acid, and performing spray drying to obtain a first material; uniformly stirring ammonium nitrate, ammonium dihydrogen phosphate, a potash magnesium sulfate fertilizer, gypsum powder, zinc humate, borax and diethyl aminoethyl hexanoate, placing a mixture into a fusing tank and heating to obtain a second material; placing the second material into a rotary pulp shooting machine, then adding the first material, guano, peanut hull powder, sawdust, corn germ meal and potassium fulvic acid, mixing uniformly, spraying and dispersing a mixture from a pulp nozzle, positioned above a cooling tower, of the rotary pulp shooting machine into fertilizer droplets, and precipitating the fertilizer droplets in the cooling tower to obtain the lettuce special fertilizer capable of improving the soil structure.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a method for preparing lettuce special fertilizer for improving soil structure. Background technique [0002] The edible stems and leaves of lettuce are cool in nature, tender and crisp in taste, fresh and slightly bitter in taste, which can stimulate the secretion of digestive enzymes and increase appetite; 1. People with heart disease have a certain dietary effect. It is rich in iron that can be absorbed by the human body, which is very beneficial to patients with iron deficiency anemia. It contains a small amount of iodine, which has a major impact on people's basic metabolism, mental and physical development. Vegetables are very rich in fluorine in lettuce, which can participate in the growth of teeth and bones; it contains a variety of vitamins, which can regulate the function of the nervous system, and contains natural folic acid. Pregnant women eat more to play a good ...

AI Technical Summary

Problems solved by technology

[0003] In the cultivation of lettuce, people usually use common chemical fertilizers, including ammonium nitrate, potassium sulfate, potassium magnesium sulfate fertilizers, etc., which are not only prone to excessive or insufficient nutrient application, but also cause soil compaction and salt damage when excessive application is left in the soil , when the application is insufficient, it will cause plant deficiency and affect the yield and quality