A kind of bottom application fertilizer for wheat and corn rotation and fertilization method thereof

Abstract

The invention discloses wheat or corn bottom application fertilizers and fertilizing methods thereof. A wheat bottom application fertilizer comprises the following active ingredients in percentage by weight: 15-18% of nitrogen, 18-21% of phosphorus pentoxide, 10-13% of potassium oxide, and 6-7% of a soil structure conditioner; a corn bottom application fertilizer comprises the following active ingredients in percentage by weight: 8-10% of nitrogen, 15-17% of phosphorus pentoxide, 18-20% of potassium oxide, and 5-7% of a soil structure conditioner; and the sum of the weight percentages of nitrogen, phosphorus pentoxide and potassium oxide is more than or equal to 40%. Before wheat sowing, the wheat bottom application fertilizer is applied in combination with soil preparation, and urea is top-dressed in the shooting period and the heading period; and the corn bottom application fertilizer is applied during corn sowing, and urea is top-dressed with water in the flare opening period and the postulation period. The wheat or corn bottom application fertilizers disclosed by the invention can improve the soil structure, promote the crop growth, reduce the dosage of chemical fertilizers, and increase the yield.

Description

technical field [0001] The invention relates to grain crop fertilizers and fertilization techniques, in particular to a novel wheat-corn crop rotation fertilizer-saving, high-yield, bottom-applied fertilizer and a fertilization method thereof. Background technique [0002] As a special commodity, grain has strategic significance, is an important foundation for a country's prosperity and people's strength, and is related to national security. Wheat and corn are the main food crops in my country. According to the China Planting Industry Information Network - Crop Database, the national corn planting area in 2014 was 556.85 million mu, accounting for 22% of the crop planting area, ranking first, with a total output of 215.65 million tons; The wheat planting area is 361.04 million mu, accounting for 15% of the crop planting area, ranking third, with a total output of 126.2 million tons. Studies have shown that from 2008 to 2020, the average annual yield of corn in my country inc...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of unreasonable fertilizer formula and unreasonable dosage in each fertilization period, the present invention provides a new type of bottom application fertilizer for wheat and corn rotation and its fertilization method. , phosphorus, and potassium fertilizer ratio, mixed with soil conditioner, one-time base application before wheat and corn sowing, combined with topdressing, not only meets the growth and development needs of wheat and corn, but also increases yield, reduces the amount of chemical fertilizers, and reduces production costs. Improve economic benefits, reduce agricultural non-point source pollution, protect the ecological environment, and alleviate the dual pressures of food production increase and resource shortage. It is a new high-yield and efficient fertilization technology that meets the needs of social resources and the environment.