Biological special fertilizer for rice

Abstract

The invention relates to a biological special fertilizer for rice, which is prepared from the following raw materials in parts by weight: 11-13 parts of N, 8 parts of P2O5, 11 parts of K2O9, 2-3 parts of microbes and 1-2 parts of medium microelements, wherein the medium microelements are sulfur and zinc, the microbes are prepared from phosphorus dissolving bacteria, potassium dissolving bacteria and nitrogen fixing bacteria, and lignite and zeolite are used as microbial carriers. The proper ratio of N to P2O5 to K2O in the biological special fertilizer for the rice in black soil type rice soil is 11:8:11, the proper ratio of N to P2O5 to K2O in the biological special fertilizer for the rice in meadow soil type rice soil is 12:8:10, and the proper ratio of N to P2O5 to K2O in the biological special fertilizer for the rice in albic soil type rice soil is 13:8:9. The special fertilizer produced by adopting the formula of the invention can reduce the fertilizer consumption, increase the rice yield and improve the quality, and can be widely used as the biological special fertilizer for the rice.

Description

Technical field: [0001] The invention relates to a chemical fertilizer, especially a special fertilizer for biological rice. Background technique: [0002] At present, due to people's one-sided pursuit of yield and excessive dependence on chemical fertilizers, the amount of fertilizer applied by farmers is mostly more than 450kg / hm when the soil is moderately fertile. 2 , The total amount of fertilizer applied by some farmers has reached 650kg / hm 2 Excessive application of chemical fertilizers is likely to cause environmental pollution, and farmers generally prefer to apply nitrogen fertilizers, especially in the early and mid-term, the amount of nitrogen fertilizers is obviously too large, and rice blast occurs in large areas in the north. This is directly related to this unreasonable fertilization, and the quality of rice Significant decline. Studies have shown that nitrogen fertilizer reduces the taste, and the protein and amylose content of rice with increased nitrogen fertili...

AI Technical Summary

Problems solved by technology

[0002] At present, due to people's one-sided pursuit of yield and excessive dependence on chemical fertilizers, the amount of fertilizer applied by farmers is mostly more than 450kg / hm in the case of medium soil fertility 2 , the total amount of fertilizer applied by some farmers has reached 650kg / hm 2 , Excessive application of chemical fertilizers is likely to cause environmental pollution, and farmers generally focus on the application of nitrogen fertilizers, especially in the early and middle stages. Significantly decreased. Studies have shown that nitrogen fertilizer reduces the taste, and rice protein and amylose content increase at the same time when nitrogen fertilizer is applied, but the ratio of increase is different. The ratio of protein content increase is significantly greater than that of amylose.