农学 >>> 农学总论 作物学 园艺学 土壤学 植物保护学 农药学 林学 畜牧学 兽医学 水产学
搜索结果: 1-6 共查到农学 smallholder farmers相关记录6条 . 查询时间(0.093 秒)
Using primary data collected in Ludzeludze and Bhekinkhosi/Mliba RDAs from 80 smallholder farmers in the 2008 cropping season, the study used a Cobb-Douglas production function model to analyze the co...
Soil nutrient depletion is a major constraint to agricultural production on smallholder farms in Kenya. Intervention in the depletion through soil management project (SMP) was initiated in 1994 throug...
Declining soil fertility is recognized as one of the major biophysical constraints affecting agricultural production in Sub-Saharan Africa. “Improved fallows” technology, a leguminous trees-based soil...
Smallholder farmers in the Kat River Valley do not use output markets effectively due to a number of factors. The technical and institutional factors that demoralise them from marketing are identified...
A study was conducted to assess the N release dynamics of three organic resources widely used by smallholder farmers in sub-Saharan Africa to improve soil fertility. Addition of cattle manure, miombo ...
The use of mineral and organic fertilizers as straight fertilizers or in appropriate combinations may alleviate the problem of declining soil fertility and hence lead to increased crop yields. T...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...