Nitrogen-rich super high-yield cultivation technology

Recently, the Hybrid Rice Festival Nitrogen High-yield and High-efficiency Industrial Technology Seminar held in Changsha has produced good news. Using nitrogen-saving and high-yield cultivation techniques, in the case of a 30% reduction in nitrogen fertilizer consumption, it can increase yield by 22.3 kg/mu compared with customary fertilization, an increase of 5.5. %the above.

In order to solve the problem of high application rate of nitrogen fertilizer in the cultivation process of super hybrid rice, in 2008, Academician Yuan Longping and Shandong Jinzhengda Group jointly promoted the utilization of nitrogen fertilizer by using technology to tap the potential and apply advanced slow-release fertilizer application technology and technical materialization. Three aspects of research on new technologies for rice nitrogen-saving cultivation.

After more than two years of hard work, the team of experts conducted research and application of nitrogen-saving cultivation techniques in the four main rice producing areas of Jiangxi Poyang Lake Plain, Hunan Dongting Lake Plain, Hubei Jianghan Plain and Sichuan Chengdu Plain. The results showed that the application of slow-release fertilizer was beneficial to reduce the nutrient (nitrogen) content in the paddy field, and it had a significant effect on reducing the loss of nitrogen due to flooding, leakage or evaporation of water layer.

In the application research of mechanical direct seeding and mechanical fertilization and nitrogen-saving cultivation techniques, mechanical positioning fertilization is beneficial to reduce the contact between fertilizer and soil, and the effect of ensuring fertilizer is obvious. It maintains the stable supply of nutrients in the late tillering stage of rice, which is beneficial to the ability of rice to maintain high tillering ability for a long time. It is a technology that is widely popularized in the study of nitrogen-saving cultivation.