Tillage-free high-yield technology for soybeans without application of chemical fertilizer

Abstract

The invention discloses a tillage-free high-yield technology for soybeans without application of chemical fertilizer and belongs to the technical field of soybean planting. The problems that the chemical fertilizer is generally used for the soybeans in Heilongjiang and other places of China, tilling is conducted many times, the production and investment costs are high, the yield and the efficiencyare low, the soil ecological environment is gradually deteriorated and the product quality declines are solved. The technology is achieved by selecting non-transgenic high-nitrogen-fixation and high-yield seeds of the soybeans, conducting planting in large ridges with the width of 130 cm, conducting sparse planting and conducting rational crop rotation without application of the chemical fertilizer and tillage. The technology is simple in operation, a method is simple, and the technology is easy to apply and popularize.

Description

technical field [0001] The invention relates to the technical field of soybean planting, in particular to a high-yield technology for soybeans free of chemical fertilizers and tillage. Background technique [0002] Traditional soybean planting techniques generally adopt a 65 cm ridge. The farming methods are ridge turning in autumn, land preparation in autumn, ridge breaking in spring, or rotary plowing in spring, ridge sowing. The cultivation method mainly adopts dense planting varieties and dense planting, with 15,000-25,000 seedlings per mu. The management methods mainly adopt pre-emergence or post-emergence chemical weeding after sowing, combined with mechanical intertillage or use of hoe to loosen the soil for weeding, and manual weeding management. Fertilization methods: No chemical fertilizers were applied before 1980, and chemical fertilizers were gradually applied after 1980. Generally, 10-15 kg of diammonium is applied per mu, 5-7.5 kg of urea, and 5 kg of potas...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems that soybeans in Heilongjiang and China generally use chemical fertilizers for more cultivation, the production cost is high, the yield is low, the soil ecological environment is deteriorating, the product quality is declining, and the imported transgenic soybeans are harmful to people's health. The high-yield cultivation technology greatly increases the amount of nitrogen fixation. Soybeans do not need to apply nitrogen fertilizers. By adopting complete no-tillage and no soil preparation measures, the ability to resist drought, soil moisture, soil, fertilizer and seedlings is comprehensively improved, and the residual phosphorus and potassium nutrients of the previous stubble crops are protected. Phosphorus and potassium fertilizer