摘要
基于西藏林周县农区具有良好的农业生态气候条件,可以实现"复种、一年两收"。本研究在保证粮食生产的基础上,针对农区现有的饲草作物:燕麦、箭筈豌豆、芫根等,于2020年开展复种、一年两收等优质饲草生产及种植试验。结果表明,在2020年7月25日作物营养生长与生殖生长达到顶峰,植株生长达到最高,为收获优质鲜饲草最佳时期,可获得较高产量,收获后抢农时、最大限度利用自然界的水、热资源,实现水热利用的耦合效果,复种优质绿肥作物,还可收获一季优质饲草。这些模式的应用,将有效增加饲草生产,复种绿肥促进生物固氮,提高土壤肥力,为牲畜提供优质饲料,从而实现西藏林周县畜牧业的全面发展。
Based on the favorable agro-ecological and climatic conditions in the agricultural region of Lhünzhub County,Tibet, "double cropping and two harvests per year" can be realized. The main objective of this study is that on the basis of ensuring grain production,planting experiments of double cropping and two harvests per year for the high-quality forage crops such as oats,Vicia sativa and daphne were carried out in agricultural areas in 2020. it is concluded that July 25 is the best period for harvesting high quality fresh forage grass and obtaining higher yield,when the vegetative and reproductive growth of crops reaches the peak and the plant growth reaches the highest level. Multiple cropping of high quality green manure crops could realize the coupling effect of water and heat utilization and harvest one season high quality forage grass. The application of these models will effectively increase the production of forage grass,promote biological nitrogen fixation,improve soil fertility and provide high-quality feed for livestock,thus realizing the comprehensive development of animal husbandry in Lhünzhub County,Tibet.
作者
关卫星
罗黎鸣
张思源
GUAN Weixing;LUO Liming;ZHANG Siyuan(Institute of Agricultural,Tibet Academy of Agricultural and Animal Husbandry Sciences,Tibet Lhasa 850032,China)
出处
《西藏农业科技》
2021年第3期62-65,共4页
Tibet Journal of Agricultural Sciences
关键词
优质饲草种植
一年两草
西藏
high-quality forage farming
two plants a year
Tibet
