氮磷肥合施对燕麦产量及收获指数的影响  

Effect of Fertilizer N and P Combination on Growth and Yield of Oats

作　　者：纪亚君[1] 刘文辉[1] 颜红波[1] 周青平[1] 陆家芬[1] 

机构地区：[1]青海省畜牧兽医科学院,西宁810016

出　　处：《青海畜牧兽医杂志》2014年第3期4-7,共4页Chinese Qinghai Journal of Animal and Veterinary Sciences

摘　　要：在青海省湟中县用两个皮燕麦品种进行氮磷肥双因素4水平完全随机区组试验,以确定在不同氮磷配合施用比例下燕麦的产量表现。结果表明两种燕麦的地上生物量、籽粒产量都因施氮磷肥显著提高。氮肥效益在不施磷或施磷量低时表现显著,而磷肥则在不施氮或施氮量低时表现显著,氮磷肥存在显著互作效应(p<0.01)。施氮对燕麦收获指数未产生显著作用,施磷对青引1号燕麦的收获指数有显著影响。两个燕麦品种的产量因其固有的遗传特性差异显著(p<0.01)。A field study was conducted at Huangzhong county, Qinghai （N36°21′, E101°21′） to assess the aboveground biomass and the grain yield of two hulled oat cultivars with the different fertilizer N and P combinations while each of N and P varying in four levels. The results showed that the aboveground biomass and the grain yield of the two oat cultivars were all improved by fertilization N and P. The efficiency of fertilizer N was significant with none or low fertilizer P application, while the efficiency of fertilizer P was significant with none or low fertilizer N. There was a significant interception between N and P （p 〈 0. 01 ）. Fertilizer N showed no effect on the harvest index of both oat cultivars while fertilizer P had effect on that of the Qingyin 1. The yields of the two oat cultivars had significant difference due to their genetic characteristic （p 〈0. 01 ）.

关 键 词：燕麦 氮肥 磷肥 肥料配施 生长 产量 

分 类 号：S812.4[农业科学—草业科学]