施肥对提高秣食豆产量和饲用品质的影响

采用"3414"最优回归设计,设氮、磷、钾3个因素,4个施肥水平,研究不同施肥水平对秣食豆产量、饲用品质的影响,结果表明,在鼓粒期和N_2P_2K_2(N 40 kg/hm~2,P_2O_570 kg/hm~2,K_2O 50 kg/hm~2)施肥水平下秣食豆饲用品质表现最佳,秣食豆鲜、干草产量最高,分别是39238.09和16209.12 kg/hm~2,较对照分别提高了24.47%、36.17%;粗蛋白、粗脂肪最高,分别为18.40%和2.60%,较对照分别提高了37.02%、73.61%;粗纤维含量最低,较对照降低了18.46%。

Effect of fertilizer on the yield and forage quality of Glycine max

Using a "3414" optimal regression design,this study set three factors of nitrogen,phosphorus and potassium and four fertilizer levels (N:0,20,40,60 kg/ha;P2O5:0,35,70,105 kg/ha;K2O:0,25,50,75 kg/ha) to investigate effects on the yield and forage quality of Glycine max.The results showed that during the seed-filling stage and with N2P2K2 fertilizer level (N 40 kg/ha,P2O5 70 kg/ha,K2O 50 kg/ha),G.max had the best nutrient quality.At N2P2K2 fertilizer level,the fresh and hay yields were at their highest levels,which were 39238.09 and 16209.12 kg/ha respectively,representing increases of 24.47％ and 36.17％ compared with the control,crude protein and crude fat content were the highest (18.40％ and 2.60％),37.02％ and 73.61％ higher than the control respectively.Crude fiber content was the lowest,reducing by 18.46％ when compared with the control.