西藏山南地区箭筈豌豆与丹麦“444”燕麦混播效应的研究

研究了西藏山南地区不同比例箭筈豌豆与丹麦"444"燕麦的混播效应。结果表明,混播可明显提高产草量和牧草品质,不同混播比例间的产草量、粗蛋白、粗脂肪、NDF、Ca和P含量差异显著(P<0.05),ADF含量差异不显著(P>0.05);随着箭筈豌豆比例的增加,粗蛋白、粗脂肪、Ca和P含量随之增加,而NDF、ADF含量增加。播种比例以箭筈豌豆(50%) 丹麦"444"燕麦(50%)为佳,产草量较高,品质较好。混播能提高土壤有机质、全氮、速效钾的含量。箭筈豌豆与丹麦"444"燕麦按此比例混种在西藏山南可以推荐推广以提高土壤肥力和改善饲草品质。

Effects of the Common Vetch-Oat Mixture in the Shannan Region of Tibet

Effect of the common vetch(Vicia sativa L.cv) oat(Avena sativa) mixture at different rate in the Shannan region of Tibet was studied.The results showed that the vetch-oat mixture increased yield and quality of forage,there were significant difference in forage yield and the content of CP,EE,NDF,Ca and P among the different treats(P<0.05),but the difference in the content of ADF was not significant(P>0.05),and as the rate of vetch increased,the content of CP,EE,Ca and P increased but the content of NDF and ADF decreased.50% common vetch 50% oat was the best among the different mixtures,it has higher forage yield and better quality;mixture sawing increased soil organic matter,total nitrogen and available potassium of soil in the experiment.This ratio could be commended to be popularized in the Shannan region of Tibet to improve the soil fertility and quality of forage.