Special high-Fe slow release fertilizer for rice and preparation method thereof

Abstract

The invention provides a special high-Fe slow release fertilizer for rice. The raw material components according to parts by weight are as follows: 20-25 parts of brown coal powder, 90-100 parts of calcium superphosphate, 20-30 parts of iron tailings powder, 10-20 parts of urea, 20-30 parts of monopotassium phosphate, 4-6 parts of potassium nitrate, 2-4 parts of polyaspartic acid, 0.1-0.3 part of dicyandiamide, 1-2 parts of zinc sulfate, 1-2 parts of magnesium sulfate, 0.2-0.4 part of ferrous sulfate, 0.2-0.4 part of manganese sulfate, 0.1-0.2 part of copper sulfate, 0.02-0.03 part of chlormequat chloride, 3-5 parts of emulsifier OP-10, 10-15 parts of polyvinyl alcohol, 90-100 parts of maifanite powder, 8-10 parts of xanthan gum, 4-6 parts of natural resin and 10-15 parts of fertilizer additives. The special high-Fe slow release fertilizer for rice, provided by the invention, is convenient to use, contains more nutrients, is scientific in nutrient proportion and high in utilization efficiency of nutrient resources, is capable of improving lodging resistance of rice, increasing the yield and is high in Fe content.

Description

technical field [0001] The invention relates to the field of agricultural fertilizers, in particular to an iron-rich 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....

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 caused by partial application of fertilizers is very serious, which not only affects the improvement of rice yield and Improvement of quality, reduction of nutrient resource utilization efficiency, and inability to coordinate soil nutrient balance, which is not conducive to soil fertilization and sustainable high yield of rice

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