摘要
以白燕7号燕麦Avena sativa cv.BaiyanNo.7为材料,研究了不同配比的氮(N)肥和钾(K)肥对种子产量构成因素(穗数、穗粒数、千粒重、穗粒重)、种子产量、秸秆产量及品质的影响。结果表明,施氮和施钾对穗数、穗粒数、千粒重、穗粒重、种子产量、秸秆产量都有显著的影响(P<0.05),随着施肥量的增加呈先增后降的变化趋势;施氮和施钾与种子和秸秆产量之间呈显著的线性回归关系(R2=0.862,P<0.05;R2=0.838,P<0.05);N75K105水平下,燕麦种子产量、秸秆产量均最高,分别为4.90×103和9.86×103kg/hm2;燕麦籽粒中粗蛋白、粗脂肪和粗纤维含量随着施肥量的不同有规律性的变化。
Studying effect of different ratio of N,K fertilizer of Baiyan No. 7 oats on seeds yield （spikes, weight per 1 000 seeds,seeds of each spike weight,grains of each spike）seeds yield,straw yield and quality. The results showed that inputting N and K fertilizer have significant effect on spikes,welght per 1 000 seeds,seeds of each spike weight,grains of each spike,seed yield and straw yield （P〈0.05）. They tend to change from increasing to decreasing with inputting fertilizer increasing. There is significant linage regress between inputting N.K and seeds, straw yield（R^2 =0. 862,P〈0.05;R^2 =0. 838, P〈0.05） ;At the level of N75K105 seeds,straw yield reach highest,with 4.90×10^3 kg/hm^2 and 9.86 × 10^3 kg/hm^2 respectively. The crude protein,crude fat and crude fiber content in oat seeds change regularly with inputting different amount of fertilizer.
出处
《草业科学》
CAS
CSCD
2008年第10期48-53,共6页
Pratacultural Science
基金
科技部"青引燕麦品种繁育与示范"项目(2006GB2G200318)
关键词
燕麦
氮
钾
产量
品质
oat
nitrogen
potassium
yield
quality
