喷施硼、钼、锌对紫花苜蓿种子产量的影响

通过对盛花期紫花苜蓿(Medicago sativa)进行叶面喷施不同质量分数的硼、钼、锌，测定不同处理下紫花苜蓿种子产量、株高、千粒重、花序数/生殖枝、豆荚数/花序、籽粒数/豆荚等产量构成因素。结果表明，硼、钼、锌对紫花苜蓿种子产量及其构成因素有显著效应。3种微肥中0.9%硼、0.04%钼和0.6%锌处理对苜蓿种子具有良好的增产效果，种子产量分别比对照增加6.89%、26.51%和13.8%，其中0.04%钼增产效果最优。同时各处理对花序数/生殖枝、荚果数/花序、籽粒数/荚果等均有一定影响。

Effect of spraying B,Mo and Zn on alfalfa seed yield

A field experiment was conducted to determine the effect of B,Mo and Zn on alfalfa seed yield and its components by spraying these elements at the flowering stage.The seed components consisted of plant height,thousand seed weight,florets per reproductive branches,pods per inflorescence,seed number per pod yield.The results of this study showed that addition of B,Mo and Zn showed the significant effect on alfalfa seed yields and its components.Combination of 0.9% Na2B4O7·10H2O,0.04%(NH4)6Mo7O24·4H2O and 0.6% ZnSO4·7H2O showed a highest seed yield,and seed yield increased by 6.89%,26.51% and 13.8% when compared to control,respectively.Different combination of Na2B4O7·10H2O,(NH4)6Mo7O24·4H2O and ZnSO4·7H2O affected the number of inflorescence per reproductive branches,pod number per inflorescence and seed number per pod.