搜索结果: 1-2 共查到“农学 Kurdistan”相关记录2条 . 查询时间(0.042 秒)
Effect of planting interval and soil type on qualitative and quantitative characteristics of poplar (Populus nigra) plantations in Diwandareh (Kurdistan province, western Iran)
plantation stand soil properties growth
2015/5/5
We investigated the effects of planting interval and soil type on qualitative and quantitative characteristics of seven poplar (Populus nigra) plantations with 1 × 1 m and 2 × 2 m planting intervals i...
A study of natural risk affecting adoption of crop insurance：A case study of Kurdistan, Iran December 2007
Adoption risk adverse events agricultural products insurance
2009/3/4
Crop insurance is an effective method which is being practiced by farmers in all economic sectors at all seasons in order to be able to minimize natural risk. Crop insurance is being considered as a...