密度和肥料配比对春小麦产量的影响

The effects of density and fertilizer ratio on yield of spring wheat

研究了不同密度和肥料配比对春小麦产量的影响。结果表明 ,( 1)在 3 75万株· hm-2 ～ 60 0万株· hm-2 范围内 ,小麦产量变化不显著 ,对于龙辐 91- B569适当降低密度是可行的。 ( 2 )不同肥料配比对小麦产量影响较大 ,其中在 N∶ P∶ K为 1.5∶ 1∶ 0 .5的情况下 ,小麦产量最高 ,为5868kg·hm-2 ,并且各组配比中随着氮肥用量的增加 。

Different density and fertilizer ratio can affect yield of spring wheat qreatly,our study draw the following conclusions:(1)in the range from 3,750,000 hm -2 to 6,000,000 hm -2 ,the yield of spring wheat did not change significantly,so we can properly decrease the density of Long Fu 91-B569.(2)the effect of different fertilizer ratios on yield of spring wheat was more significant.N∶P∶K=1.5∶1∶0.5 was the best,and among the different of fertilizer ratios,the more the nitrogen applied,the highter the yield of spring wheat