Special slow-release fertilizer taking attapulgite as matrix for paddy rice and preparation method of special slow-release fertilizer

Abstract

The invention provides a special slow-release fertilizer taking attapulgite as a matrix for paddy rice. The special slow-release fertilizer comprises the following raw material components in parts by weight: 60-80 parts of attapulgite, 10-20 parts of bamboo charcoal powder, 10-15 parts of melamine, 4-6 parts of polyvinyl alcohol, 10-12 parts of urea, 50-60 parts of diammonium phosphate, 80-90 parts of potassium sulfate, 6-8 parts of sodium lignin sulfonate, 1-2 parts of turpentine oil, 3-4 parts of a herbicide, 2-4 parts of disodium cocoyl monoethanolamide sulfosuccinate, 3-4 parts of super absorbent resin and 10-15 parts of fertilizer additives. The fertilizer provided by the invention can slowly release nutrients by fertilizing once, improves the utilization rate of the fertilizer and reduces the loss of fertilizer efficiency; and by adding the super absorbent resin, the effects of fighting against drought and retaining water are realized, the yield of the paddy rice is improved, and the cost is saved.

Description

technical field [0001] The invention relates to the field of agricultural fertilizers, in particular to a special slow-release fertilizer for rice using attapulgite as a matrix 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 see...

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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