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随着气温的回升,又到了春耕时节。今年中央一号文件提出,在继我国粮食九连增的基础上,我国仍然把稳定发展农业生产作为发展的重点要求,在粮食生产中提出坚持稳定面积、优化结构、主攻单产的总要求。我国粮食连续增产,化肥在其中功不可没,但是常年施用化肥,也造成了土壤有机质的缺失。而有机质是土壤最重要的肥力指标,其高低很大程度上决定了农作物产量水平。据“绿肥作物生产与利用技术模式集成及示范”项目首席专家、中国农业科学院农业资源与农业区划研究所研究员曹卫东介绍,长
With the temperature rise, but also to the spring season. This year, the Central Document No.1 proposed that on the basis of the continuous increase of grain output in our country, our country still regards the steady development of agricultural production as the key requirement for development. We have proposed in the grain production the general requirements of adhering to a stable area, optimizing the structure and focusing on the main production. China’s grain production continued to increase, fertilizer in which contributed, but perennial application of fertilizer, but also caused the lack of soil organic matter. However, organic matter is the most important index of soil fertility and determines the level of crop yield to a large extent. According to “green manure crop production and utilization of technology model integration and demonstration ” project chief expert, Chinese Academy of Agricultural Sciences Institute of agricultural resources and agriculture division researcher Cao Weidong introduction, long