Mixed fertilizer for preventing and treating rice false smut and preparation method thereof

Abstract

The invention discloses a mixed fertilizer for preventing and treating rice false smut and a preparation method thereof. Raw materials of the mixed fertilizer comprise, by weight, 3-15 parts of potassium polyphosphate, 3-18 parts of white clay, 3-15 parts of straw meal, 5-25 parts of cassia twig, 3-16 parts of fishbone meal, 1-20 parts of sodium humate, 1-18 parts of alga, 1-10 parts of bone meal production leftovers, 10-90 parts of bacillus subtilis, 5-25 parts of rhizoma curcumae, 1-10 parts of radix sophorae flavescentis and 1-18 parts of sea-buckthorn. The preparation method comprises the following steps: crushing white clay, straw meal, cassia twig, fishbone meal, sodium humate, alga, bone meal production leftovers, bacillus subtilis, rhizoma curcumae, radix sophorae flavescentis and sea-buckthorn, sieving through a sieve of 40-80 meshes, uniformly mixing and carrying out thermal insulation at 30-40 DEG C for 5-15 h, mixing and stirring for 10-30 min, adding potassium polyphosphate, uniformly mixing, and granulating so as to obtain the mixed fertilizer. The mixed fertilizer is low-cost and can effectively prevent rice false smut for rice, raise resistance of rice and guarantee stability of rice so as to increase yield of rice.

Description

technical field [0001] The invention relates to the technical field of rice fertilizers, in particular to a mixed fertilizer for preventing and treating rice false smut and a preparation method thereof. Background technique [0002] Rice (scientific name: Oryza sativa) is a kind of herbaceous Oryza genus, and it is also the most important and oldest kind of grain in Oryza genus. It is also called Asian cultivated rice. It is an annual, gramineous plant, monocotyledonous, sexually warm and humid, about 1 meter high when mature, with slender leaves, about 50 to 100 cm long and 2 to 2.5 cm wide. The flowers of rice are very small. When blooming, the main flowering branches will be arched, and small flowers will bloom between 30 and 50 mm down from the branches. Most of them are self-pollinating and set seeds, which are called rice spikes. Generally, the size of the rice ear is 5 to 12 mm long and 2 to 3 mm thick. [0003] The three major diseases of rice are: rice blast, bact...

AI Technical Summary

Problems solved by technology

At present, it can only be prevented by soaking rice seeds in pesticides, but there is no better method for prevention and control during the growth process.