水稻精确施氮试验研究

摘要

对水稻进行施氮试验、示范研究，结果表明，水稻精确施氮技术具有节省氮肥，提高氮肥利用率，增加单产，减少污染，保护土壤环境的重要作用。通过试验可知，精确施肥较常规施肥可节省氮肥4．9kg／667m2，增产稻谷30kg／667in。以上，可提高氮肥利用率6．5％。%The test, demonstration and research on rice and the results indicated that the technology about precise application of nitrogen can save nitrogenous fertilizer, increase utilization efficiency, increase the yield, reduce pollution and protect the environment of soil. From the test we knew the precise application can save the nitrogenous fertilizer by 4.9 kg/667 m2, increase the yield by 30 kg/667 m2, improve the efficiency of nitrogenous fertilizer by 6.5%.