搜索结果: 1-1 共查到“作物生态学 Cropping Systems”相关记录1条 . 查询时间(0.018 秒)
On-farm evaluation of improved cowpea-cereals cropping systems for crop-livestock farmers: Cereals-cowpea systems in Sudan savanna zone of Nigeria
Cowpea-cereal systems farmer participatory trial
2011/1/12
From 2003 to 2005, a farmer’s participatory evaluation of improved cowpea-cereal cropping systems in the Sudan savanna zone of Nigeria involving over 1600 farmers was conducted. The system involved gr...