拉萨河谷冬青稞后复种燕麦品种筛选与经济效益研究

Study on varieties selection and economic benefits of oats sowed after harvesting winter barley in Lhasa river valley Tibet

饲用燕麦是西藏重要的优质饲草料作物,种植面积逐年扩大。本文通过在拉萨河谷开展冬青稞收获后复种6个不同皮裸燕麦品种试验,得出:白燕10号和永久109分别为鲜干草产量最高的裸、皮燕麦品种;白燕10号理论上每公顷产鲜、干草分别为31.68t、9.66t,可带来经济效益分别为8772.6元、11556.0元;永久109理论可产鲜、干草分别为33.08t/ha、10.24t/ha,可带来经济效益分别为9333元、12484.8元。可见冬青稞收获后复种燕麦经济效益显著,适宜大面积推广应用,可为拉萨河谷农区农牧民增收致富开辟新途径。

As one of the important forage crops,Oats sowed area expands year by year.Six different oats after harvesting winter barley were sowed in Lhasa river valley,what showed:Baiyan No.10 and Yongjiu No.109 are the best varieties;Theoretically the fresh weight and DM of Baiyan No.10 were 31.68 t/ha、9.66 t/ha,and economic benefits were 8772.6 yuan,11556.0 yuan;the fresh weight and DM of Yongjiu No.109 were 33.08 t/ha、10.24 t/ha,and economic benefits were 9333 yuan/ha、12484.8yuan/ha respectively.Obviously,economic benefits of oats sowed after harvesting winter barley is remarkable,and oats is suitable to plant for large area what is new way for farmers getting rich in Lhasa river valley