Special slow-release fertilizer for paddy rice and preparation method of special slow-release fertilizer

Abstract

The invention provides a special slow-release fertilizer for paddy rice. The special slow-release fertilizer for paddy rice comprises the following raw material components in parts by weight: 20-30 parts of composted cow manure, 4-6 parts of silkworm pupa powder, 10-20 parts of sunflower faceplate, 10-12 parts of egg shell powder, 40-50 parts of potassium dihydrogen phosphate, 20-30 parts of calcium superphosphate, 60-80 parts of plant ash, 30-40 parts of ammonium chloride, 8-10 parts of sodium silicate, 8-10 parts of urea, 0.1-0.2 part of ferrous sulfate, 0.1-0.2 part of zinc gluconate, 0.0001-0.0003 part of S-abscisic acid, 2-3 parts of borax, 0.01-0.02 part of copper sulfate, 6-8 parts of acrylic acid, 3-4 parts of sodium hydroxide, 2-3 parts of acrylamide, 10-15 parts of hydroxypropyl distarch phosphate, 1-2 parts of ammonium persulfate, 8-10 parts of triethanolamine, 4-6 parts of waste plastic powder, an appropriate amount of water and 10-15 parts of fertilizer additives. The special slow-release fertilizer for paddy rice, provided by the invention, has reasonable mixture ratio of nutrients, and can slowly release the nutrients by fertilizing once, keep slow release of fertilizer efficiency, ensure nitrogen-phosphorus-potassium nutrients during the whole growth process of the paddy rice, realize convenience in use, and simultaneously improve the drought resistance, high and low temperature resistance and pest and disease resistance of the paddy rice.

Description

technical field [0001] The invention relates to the field of agricultural fertilizers, in particular to a special slow-release fertilizer for rice and a preparation method thereof. Background technique [0002] Rice is the staple food of two-thirds of the world's population, and it is also the main source of nutrition and energy for the people of my country, Southeast Asia and South Asia. Nitrogen, phosphorus, and potassium are essential nutrients for rice growth and development. Nitrogen is the core component of important nitrogen-containing organic compounds in rice. Phosphorus is one of the important components of cytoplasm and nucleus, and directly or indirectly participates in the metabolism of sugar, protein and fat, phosphorus participates in energy metabolism, and some high-energy phosphoric acid is the main place for energy storage. Therefore, phosphorus is indispensable in cell division and meristem development, more important in seedling and tillering stages. P...

AI Technical Summary

Problems solved by technology

When potassium is insufficient, starch, cellulose, and carbohydrates are reduced, which affects yield and quality

At present, the fertilizers used by farmers in rice production are mainly urea, ammonium bicarbonate, diammonium phosphate and general-purpose ternary compound fertilizers. The phenomenon of nutrient imbalance cau

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