Compound amino acid fertilizer capable of improving low-temperature cold damages of rice seedlings as well as preparation method and application method of compound amino acid fertilizer

Abstract

The invention provides compound amino acid fertilizer capable of improving low-temperature cold damages of rice seedlings as well as a preparation method and an application method of the compound amino acid fertilizer and belongs to the technical field of fertilizer. The fertilizer is prepared from the following components in parts by weight: 250 to 350 parts of amino acid powder, 150 to 200 partsof urea, 180 to 300 parts of mixed phosphorus fertilizer, 150 to 250 parts of potassium chloride and 50 to 120 parts of granulation auxiliary agent. The compound amino acid fertilizer provided by theinvention has nutrient resources including N, P, K and the like needed by the growth of plants and also can be used for effectively preventing the low-temperature cold damages at a rice seedling period; meanwhile, the compound amino acid fertilizer has the effects of promoting root activity and tillering, improving the photosynthetic rate of rice and increasing the yield and can be used as a novel fertilizer product for maintaining high production and stable production of the rice in regions which are usually suffered from low temperature at the seedling period, such as rice planting regionsin the middle and lower reaches of the Yangtze River.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a compound amino acid fertilizer for improving the resistance of rice seedlings to cold damage, a preparation method and an application method thereof. Background technique [0002] Amino acid is the basic unit of protein. With the help of sterile culture, isotope tracing and molecular biology techniques, it has been confirmed that plants can directly absorb small molecular organic nitrogen in soil, such as amino acids, nucleic acids, fatty acids, etc. Amino acid-loving plants are commonly found in arctic tundra, boreal cold forests and alpine ecosystems, and the contribution of amino acid nitrogen to plant nitrogen nutrition is even higher than that of inorganic nitrogen. Further studies have found that fast-growing plants prefer to absorb inorganic nitrogen, and slow-growing plants prefer to absorb amino acid nitrogen. The growth rate of plants is closely relate...

AI Technical Summary

Problems solved by technology

At present, under the condition of low temperature and chilling injury, a large number of researchers have adopted 1) clever management of field water, using water to regulate temperature, using water to protect seedlings and mulching; 2) reasonable topdressing and strengthening nutrient supply of seedlings; 3) chemical control, prevention and control of pests and diseases 4) The introduction and cultivation of high-quality varieties with strong cold resistance have carried out a large number of researches on the prevention of low temperature damage of rice seedlings, but there are few reports on new methods based on compound amino acid fertilizers to improve the ability of rice seedlings to resist low temperature damage

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