氮钾肥对燕麦产量与品质的影响  

Effects of Nitrogen and Kalium Fertilizers on Yield and Quality of Oat

作　　者：许国芬 周青平[2] 

机构地区：[1]青海省共和县草原站,共和813000 [2]青海省畜牧兽医科学院,西宁810016

出　　处：《青海畜牧兽医杂志》2010年第4期9-12,共4页Chinese Qinghai Journal of Animal and Veterinary Sciences

基　　金：农业部"948"燕麦优良品种引进培育及综合应用技术研究;农业部行业专项"优质燕麦生产与加工技术研究"(nyhyzx07-009-5);科技部科技支撑"青藏高原高寒区优质丰产饲草新品种选育及产业化示范"(2008BADB3B07);青海省科技厅"东部农区优质饲草料复种技术示范与推广"(2007-N-504)

摘　　要：研究了氮钾配施对青引1号燕麦产量与品质的影响。结果表明:氮钾肥配施对燕麦的穗数、穗长、穗重、穗粒数、草产量和种子产量均有显著影响(P<0.05)。在N75K135时,穗重、穗粒数、穗数和种子产量达最大值,分别为2.95g/穗,37.53粒/穗,625.33个/m2,6 621.53kg/hm2;燕麦种籽产量与其各产量构成因子之间均具有显著正相关关系,产量与氮钾肥之间的数学模型为:Y=5 194.11+25.01N+3.38K-0.135N2-0.028NK(R=0.97**),在N75K135时粗蛋白含量为12.90%,粗纤维为5.78%。The effect of different nitrogen（N） and kalium（K） fertilizers combined application on the yield and quality of Qing yin No.1 oat was studied.The results showed that combined application of N and K fertilizer obviously increased ear number,ear length,ear-seed weight,ear-seed number,dry grass yield and seed yied（P0.05）.The ear-seed weight,ear-seed number,ear number,and seed yield of Qing yin No,1 oats with N75K135 reached to the highest which were 2.95g/ear,37.53grains/ear,625.33numbers/m2 and 6 621.53kg/hm2,respectively.Correlation obviously between seed yield and yield components of oat.The curves of grain yields to the amount of N and K fertilizer application was quadratic fixing to the equations Y=5 194.11＋25.01N＋3.38K-0.135N2-0.028NK（R=0.97＊＊）.The content of crude protein of Qing yin No.1 oats with N75 K135 reached to the highest which was 12.90%,The content of crude fiber reach to the lowest which was 5.78%

关 键 词：青引1号燕麦 氮肥 产量 品质 

分 类 号：S812.3[农业科学—草业科学]