本研究通过对四茬苜蓿草的产量和粗蛋白含量进行测定,以研究苜蓿收割时期与草产量、粗蛋白含量的关系。结果表明:四茬苜蓿的产量平均值变化范围是135.6～339.7kg,差异显著(F<0.01);粗蛋白含量平均值变化范围是16.65%～19.04%,表现出明显差异(F<0.05)。

In this study, the variation of yield and CP of alfalfas in different cutting period were determined。The results showed that the yields of hay varied from 135.6kg(F<0.01) to 339.7kg,and the concents of CP varied from 16.65% to 19.04%(F<0.05) in the four different cutting period.