免耕水稻在“3414”试验方案中氮磷钾配施的肥料效应研究  

The research of fertilizer effect on the no-tillage cultivated rice based on experiment of "3414" design

作　　者：朱桂玉[1] 区惠平[1,2] 何佳[1,3] 顾明华[1] 

机构地区：[1]广西大学农学院,广西南宁530005 [2]广西农业科学院农业资源与环境研究所,广西南宁530007 [3]钦州市环境保护监测站,广西钦州535000

出　　处：《中国土壤与肥料》2011年第5期48-52,共5页Soil and Fertilizer Sciences in China

基　　金：广西壮族自治区自然科学基金项目(0728013)

摘　　要：在免耕抛秧种植模式下进行"3414"肥料效应试验,通过建立氮、磷、钾施肥量与产量的回归模型,探索当地水稻的最佳施肥量。结果表明,氮磷钾施用量均为中等水平时,产量和经济效益达到最佳;各类型函数所获得的最佳经济产量表现为一元函数>二元函数>三元函数。结合一元、二元、三元肥料效应函数及实际生产而获得的推荐施肥指标:最高产量施肥量为每公顷施N 197.70 kg,P2O573.05 kg,K2O 180.00 kg;最佳产量施肥量为每公顷施N 194.10 kg,P2O5 65.55 kg,K2O 170.10 kg。A ＂3414＂ design fertilizer experiment was carried out under no-tillage cultivation to explore the best fertilizer model by establishing the relation of nitrogen,phosphorus,potassium fertilizer application rate with the rice yield.The result showed that the best yield and profit could be reached by the middle level of nitrogen,phosphorus,potassium fertilizer application.According to fertilizer effect and the actual production,the highest yield could be got by the rate of N,P2O5 and K2O application：197.70,73.05,180.00 kg/hm2,and N,P2O5,K2O application rate to get the highest profit were 194.10,65.55,170.10 kg/hm2.

关 键 词：免耕 水稻 “3414”肥效试验 肥料效应 

分 类 号：S511[农业科学—作物学]