摘要
套种是充分利用空间和资源的农业生产模式,西藏土地资源有限,提高土地利用率有利于西藏农牧业的发展。以青稞、饲料玉米、箭筈豌豆为对象进行作物套种研究。结果显示包含箭筈豌豆的套种组合能有效改善土壤养分;青稞单播的效益最低,青稞、饲料玉米、箭筈豌豆按照1∶1∶1组合套种的饲草产量和单位面积效益最高,青稞、饲料玉米按1∶2比例套种的产投比最高。
Intercropping is the agricultural production mode that makes full use of space and resources. Tibet’s farmland is limited. Improving the using efficiency of farmland is conducive to the development of agriculture in Tibet. We adopted the used barley, field corn and vicia sativa for the research on intercropping. Results showed that interplanting crops with vicia sativa could improve soil nutrient effectively. Barley with clean culture had the lowest economic benefit. Barley, field corn and vicia sativa with intercropping ratio being1 ∶1 ∶1 had the highest forage yield and benefit per unit area. Barley and field corn with intercropping ratio being1 ∶2 had the highest input-output ratio.
作者
秦基伟
孙全平
杨素涛
QIN Ji-wei;SUN Quan-ping;YANG Su-tao(Institute of Resources and Environment,Tibet Academy of Agricultural and Animal Husbandry Sciences,Lhasa,Tibet 850000)
出处
《安徽农业科学》
CAS
2019年第12期27-29,共3页
Journal of Anhui Agricultural Sciences
基金
西藏自治区自然科学基金“水肥精控条件下不同套种模式优化筛选研究”(2016ZR-15-56)
关键词
西藏
农区
套种
单位面积效益
产投比
Tibet
Agricultural area
Intercropping
Efficiency of unit area
Input-output ratio
