摘要
为解决西藏日喀则地区农区舍饲家畜饲草供应困难的问题,本研究通过在4个不同的时间收获马铃薯后立即复种不同的牧草品种,以期明确当地马铃薯收获后可复种牧草的时间,并筛选出生产性能较高的牧草品种,为当地今后开展马铃薯复种牧草提供借鉴和参考。结果表明:马铃薯收获后更适宜复种燕麦(Avena sativa),复种品种以“青海444”(Qinghai 444)、“甜燕麦”(Sweet Oat)、“白燕2号”(Baiyan No.2)效果相对较好,平均产干草12500 kg·hm-2以上,按照干草2.4元/kg计算,平均每公顷收益超3万元。复种时间宜早不宜迟,建议在日喀则地区复种时间不宜超过7月20日。
Barn-feeding livestock forage grass is in short supply in rural areas of Shigatse.This study set four different times of potatoes multicropping different forage grass varieties,in order to clarify the optimum time of potato multi-cropping forage grass,and select the forage grass varieties with high production performance,for providing reference of the local potato multi-cropping grass in the future.The results showed that it was more suitable to double cropping oat after potato harvest,and the multiple cropping varieties Qinghai 444,Sweet Oat and Baiyan No.2 had relatively better effects.The average yield of hay was more than 12500 kg·hm-2,and the average yield of hay was more than 30000 yuan per hectare based on2.4 yuan per kilogram of hay.The time of replanting should be early rather than late.It is suggested that the time of replanting should not exceed July20 in Shigatse.
作者
吴海艳
张延丽
曲珍
覃亚
曲尼
同桑措姆
刘昭明
WU Haiyan;ZHANG Yanli;Quzhen;QIN Ya;Quni;Tongsangcuomu;LIU Zhaoming(Qinghai University/Qinghai Academy of Animal and Veterinary Science,Qinghai Xining 810016,China;Shigatse Grassland Work Station,Tibet Shigatse 857000,China;Shigatse Institute of Agricultural Science/Tibet Potato Engineering Research Center,Tibet Shigatse 857000,China;Heilongjiang Grassland Station,Heilongjiang Harbin 150086,China)
出处
《西藏农业科技》
2022年第4期41-46,共6页
Tibet Journal of Agricultural Sciences
基金
西藏自治区日喀则市区域联合创新项目(QYXTZX-RKZ2020-02)。
关键词
日喀则
马铃薯
复种
牧草
燕麦
绿麦
Shigatse
potato
multiple cropping
grass
oats
green wheat
