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机构地区:[1]青岛农业大学农学与植物保护学院,山东青岛266109 [2]青岛市种子站
出 处:《青岛农业大学学报(自然科学版)》2010年第4期285-288,共4页Journal of Qingdao Agricultural University(Natural Science)
基 金:国家科技支撑计划资助项目(2006BAD21B04)
摘 要:采用"3414"试验设计,探索花生间作花菜条件下氮磷钾配施效应,经过肥料效应函数拟合,研究了氮磷钾肥不同比例配合施用对花生、花菜产量的影响,研究结果表明:花生各施肥处理产量较不施肥处理增产26.73%~50.15%,花菜增产17.52%~69.84%,综合花生间作花菜的肥料效应函数可得高产推荐施肥量为:N172.42kg/hm2、P2O5196.20kg/hm2、K2O335.69kg/hm2,即N:P2O5:K2O=1:1.14:1.95。Effect of nitrogen,phosphorus and potassium fertilizer combined application on the yield of peanut intercrop cauliflower was studied in order to obtain optimum ratio of three kinds of fertilizers using "3414" fertilizer experiment design through fertilizer effect functions fitting.The result showed that: the application of fertilizer could improve the yield of cauliflower,the yield of cauliflower is increased along with the application of nitrogen fertilizer in a certain range,the yield of cauliflower could be improved by17.52%~69.84%.Combined application of nitrogen,phosphorus and potassium fertilizer could improve the yield of peanut significantly by26.73%~50.15%,Fertilizer effect functions of N,P and K to peanut yield fitting well.Combined all the three seven fertilizer effect functions obtained in this experiment,the dosage of 172.42,196.20,335.69kg/hm2 for N,P2O5 and K2O(N:P2O5:K2O=1:1.14:1.95)was optimum ratio of the three kinds of fertilizers for peanut intercrop cauliflower fertilization in order to get maximum grain yield.
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