节点文献
水稻机插缓混一次施肥技术
Introduction to the one-time fertilization technology for mechanized transplanting rice: side deep application of controlled-release blend fertilizer
【作者】 李刚华; 李伟玮; 高深; 汪瑜辉; 刘正辉; 陈琳; 丁承强; 唐设; 江瑜; 丁艳锋;
【机构】 南京农业大学江苏省现代作物生产协同创新中心/农业部南方作物生理生态重点开放实验室;
【摘要】 针对机插水稻凸显的氮肥施用量大,施肥次数多,稻田氮肥损失现象严重等问题,根据高产水稻氮肥阶段吸肥规律和水稻精确定量栽培技术原理,将不同释放速率的缓控释肥进行科学混合组配,使得混配肥料养分释放规律与优质高产水稻二次吸肥高峰同步,创新了一次施肥满足水稻一生优质高产所需的"缓混肥";将缓混肥与水稻机插侧深施肥技术相结合,构建了"水稻机插缓混一次性施肥技术",实现机插水稻"一次施肥、一生供肥"的效果。多年多点示范结果表明,该技术减少机插水稻施氮量20%左右、增产6%以上、节省施肥用工3~4次、稻米食味值增加5%以上,并能有效减少氨挥发和径流氮排放,氮肥利用率达到世界先进水平的55%~60%,是一项经济、环保、高效可行的先进实用技术,适合有机插条件的水稻产区广泛使用。
【Abstract】 According to the situation of fertilization in rice production in Jiangsu Province, and on the basis of the years of research and practice on one-time fertilization technology for mechanized transplantation, the authors summarized a set of green and high-efficiency fertilization technology, which is called one-time fertilization for machine transplantation rice. This article details the meaning and key measures of this technology. The authors found higher economic and ecological benefits of this fertilization technology than that of the conventional splitting fertilization. Besides, the application and promotion of one-time fertilization is of great significance to further accelerate the mechanization of rice production in Jiangsu.
【Key words】 rice; one-time fertilization; controlled-release blend fertilizer; side deep fertilization;
- 【会议录名称】 第十九届中国作物学会学术年会论文摘要集
- 【会议名称】第十九届中国作物学会学术年会
- 【会议时间】2020-11-08
- 【会议地点】中国湖北武汉
- 【分类号】S511
- 【主办单位】中国作物学会