Effects of nitrogen and potassium fertilizer on yield and quality of oat

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,weight 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(R2=0.862, P＜0.05；R2=0.838, P＜0.05)；At the level of N75K105 seeds,straw yield reach highest,with 4.90103 kg/hm2 and 9.86103 kg/hm2 respectively. The crude protein、crude fat and crude fiber content in oat seeds change regularly with inputting different amount of fertilizer.