Special long-acting slow-release fertilizer for rice

Abstract

The invention discloses a special long-acting slow-release fertilizer for rice, of which the nutritive elements comprise nitrogen, phosphorus, potassium, secondary and minor elements, beneficial nutrients, organic matters, a non-coating slow-release agent and a soil conditioner. The raw materials for providing the nutritive elements comprise urea, ammonium chloride, ammonium dihydrogen phosphate, a calcium magnesia phosphate fertilizer, ordinary superphosphate, potassium chloride, zinc sulfate monohydrate, organic matters, a non-coating slow-release agent and a soil conditioner. The special long-acting slow-release fertilizer for rice can implement slow-release, and is effective for the whole process after single-dose application; and thus, the special long-acting slow-release fertilizer for rice can satisfy the nutrient demands of rice in the whole growth period after single-dose application. The special long-acting slow-release fertilizer for rice combines utilization and maintenance of soil, can supply nutrients, can also loosen the soil and enhance the soil fertility, has higher utilization ratio, enhances the stress tolerance of rice, lowers the agricultural production risks, balances the nutrients, implements scientific fertilizer application, has the advantages of complete nutrients, multiple functions and scientific formula, and solves the problems caused by purposeless fertilizer application, unbalanced fertilizer application and the like.

Description

technical field [0001] The invention relates to a chemical fertilizer, in particular to a special fertilizer for long-acting slow-release rice. Background technique [0002] At present, the main problems of farmers fertilizing rice are blind fertilization, biased fertilization, unreasonable fertilization, and improper fertilization methods, which are manifested in the following aspects: (1) heavy application of chemical fertilizers, light application or no application of organic fertilizers, not only Destroy the soil structure, reduce the fertilizer supply capacity of the soil, and affect the quality of rice; (2) Partial application of nitrogen fertilizer, heavy application of nitrogen fertilizer, less phosphorus and potassium fertilizer input, and unreasonable ratio of nitrogen, phosphorus and potassium; (3) Medium and trace element fertilizers Insufficient investment leads to a serious imbalance of nutrient elements, frequent occurrence of physiological and infectious dise...

AI Technical Summary

Problems solved by technology

[0002] At present, the main problems of farmers fertilizing rice are blind fertilization, biased fertilization, unreasonable fertilization, and improper fertilization methods, which are manifested in the following aspects: (1) heavy application of chemical fertilizers, light application or no application of organic fertilizers, not only Destroy the soil structure, reduce the fertilizer supply capacity of the soil, and affect the quality of rice; (2) Partial application of nitrogen fertilizer, heavy application of nitrogen fertilizer, less phosphorus and potassium fertilizer input, and unreasonable ratio of nitrogen, phosphorus and potassium; (3) Medium and trace element fertilizers Insufficient investment leads to a serious imbalance of nutrient elements, frequent occurrence of physiological and infectious diseases, and directly affects rice yield and quality; Excessive fertilizer application not only reduces the utilization rate of fertilizer, but also slows the growth of rice due to the lack of other nutrients. Many farmers rely on increasing the amount of urea application to promote rice growth. , not only increased production costs, but also increased water and soil pollution; unscientific fertilization, too much topdressing, and inaccurate timing of topdressing, resulting in the phenomenon of crazy growth in the early stage, premature closure and premature aging in the later stage

Unreasonable and unscientific fertilization not only leads to waste of fertilizers, decreased soil fertility, soil compaction, and increased production costs, but also causes agricultural environmental pollution and a decline in the quality of agricultural products. At the same time, it also increases the safety risks of agricultural products.

[0003] In recent years, compound fertilizers, compound fertilizers, formula fertilizers, etc. have been widely used, but because the national standards only make mandatory requirements for the three elements of nitrogen, phosphorus and potassium, and do not make requirements for other nutrients and substances, the compound fertilizers in the domestic market Fertilizers, compound fertilizers, and formula fertilizers generally have the following problems: (1) There are only three nutrients: nitrogen, phosphorus, and potassium, and generally do not contain micronutrients and beneficial elements. It is pure, and cannot add other nutrients at all; (2) does not add organic matter and humic acid, and is indifferent to soil fertility protection and sustainable development; (3) The formula is not very targeted, and the formula and ingredients are often determined according to the cost; (4) Repeated fertilization, ordinary compound fertilizers have a short period of time, in addition to one base fertilizer, generally one or two topdressings are required. It is difficult for farmers to grasp the timing of topdressing. Improper topdressing often leads to late ripening, lodging, and serious damage by pests and diseases. , with high-yield appearance but without high-yield harvest

[0004] In order to fundamentally solve the problems of blind fertilization, biased fertilization, unreasonable fertilization, and improper fertilization methods, there is an urgent need for a method that can achieve high and stable rice production, high quality and high efficiency, improve fertilizer utilization, rationally use resources, protect the ecological environment, and improve rice production. Special fertilizers for soil, soil fertility, and sustainable agricultural development