摘要
针对甘南州半农半牧区歇地占耕地面积３０％～４０％的突出问题，在广泛调查的基础上，利用卓尼县阿子滩乡歇地种植一年生豆科牧草进行作物轮作试验。结果，种植当年获得了明显的效益，次年轮作作物后除燕麦根茬处理减产外，豆科牧草轮作根茬处理的后作物产量与对照（歇地）相同作物持平并略有增产，增产幅度因牧草种类不同而别。但增产增收的总趋势始终是豌豆＞箭舌豌豆＞混播箭舌豌豆和燕麦＞燕麦＞对照（歇地）。
With respect to large area of fallow land (accounting for 30% ￣ 40% of the arable land) . togetherwith the survey in wide range, experiment was carried out in Arzitan of Zhuoni county as to determine pro-duction and economic benefits of annual legumebased crop rotation in fallow land. Experiment results in-dicated that in comparison with control and oat based crop ratation, yield of the following crops afterannual legumes have been increased. Yield increase varied with different legumes. However, the generaltrend is garden pea (Pisum satovum )>vetch (Vicia sp. ) >vetch+oat>oat>control.
出处
《草业科学》
CAS
CSCD
北大核心
1994年第1期1-7,22,共8页
Pratacultural Science
关键词
歇地种草
轮作
经济效益
Planting grass in fallow land, crop-grase rotation, economic benefit
