江西农业大学学报2016，Vol.38Issue(4)：616-622,7.DOI:10.13836/j.jjau.2016088
新型氮肥增效剂在水稻上的节肥增产效果研究
Effects of the New Synergist of Entrench on Grain Yield and Fertilizer-Saving for Rice
摘要
Abstract
China is the largest producer and consumer of rice (Oryza sative L.) in the world.Nitrogen is the most essential element for rice production.However,low nitrogen use efficiency has been existed.Nitrification in⁃hibitor was developed to solve this problem.The effects of the new nitrogen fertilizer synergist (Entrench®) was studied to provide reliable basis for the fertilizer promotion in rice cultivation.The treatments included Farm⁃ers’ fertilization practice (without panicle fertilizer),Conventional high yield measures (decreasing basal fer⁃tilizer as panicle fertilizer),and Increasing entrench for farmers’ practice (including combined entrench with basal fertilizer,tillering fertilizer,or both),respectively.The application amount of entrench was 2.55 L/ hm2 in the corresponding plots.Under the trial conditions,the results showed that in comparison with “Conventional high yield measures”,the grain yields,the aboveground biomass after heading,and nitrogen uptake in rice plants decreased by 15.5%、52.1% and 15.5% in the plots with the Farmers’ fertilization practice.However, these indicators increased by 17.6% ~26.5%、114.1% ~122.1% and 13.1% ~27.7%,respectively in the plots of combined entrench as compared to the Farmers’ fertilization practice.Particularly,they increased significant⁃ly when the entrench applied with basal fertilizer and tillering fertilizer simultaneously.The economic benefit of rice production could be improved by 3.7% ~10.2% with increased entrench as compared to the Farmers’ fer⁃tilization practice.In addition,partial factor productivity of nitrogen could also be improved by the synergist.In order to promote the rice yield and nitrogen use efficiency coordinately,the new synergist can be popularized for rice production,especially combined with N fertilizer as basal fertilizer and tillering fertilizer simultaneously.关键词
氮肥增效剂/水稻/产量/氮肥利用效率Key words
synergist of N fertilizer/rice/grain yields/nitrogen utilization efficiency分类
农业科技引用本文复制引用
杨秀霞,商庆银,陈柳燕,李甜,张学友,王天舒..新型氮肥增效剂在水稻上的节肥增产效果研究[J].江西农业大学学报,2016,38(4):616-622,7.基金项目
国家自然科学基金项目（31460540）和江西省科技计划项目（20132BAB214021、2012ZBBF60008） Project supported by the National Natural Science Foundation of China （31460540），Jiangxi Province Science and Technology Plan Projects （）
