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会宁山区旱作豌豆高产栽培技术 被引量:1
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作者 郑彩霞 刘正芳 《农业科技与信息》 2020年第22期33-34,40,共3页
本文介绍了会宁山区旱作豌豆栽培技术,包括品种选择、整地、施肥、播种、田间管理、病虫害防治、收获等内容,以期为会宁山区旱作豌豆栽培提供技术参考。
关键词 豌豆 栽培技术 会宁山区
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Impacts of the Rising Opportunity Cost of Farm Labor on Agricultural Land Use Structure: Theory and Empirical Evidences 被引量:2
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作者 Tian Yujun Li Xiubin +1 位作者 Ma Guoxia Hao Haiguang 《Chinese Journal of Population,Resources and Environment》 2011年第1期85-90,共6页
Nowadays the rising of opportunity cost of farm labor comes to the forefront of attention in China. In order to understand its impact on agricultural land-use structure, a theoretical framework of household economics ... Nowadays the rising of opportunity cost of farm labor comes to the forefront of attention in China. In order to understand its impact on agricultural land-use structure, a theoretical framework of household economics is formulated drawn on Low's model. Under the theoretical framework, the impact of the rising opportunity cost of on-farm on cropping structure is deduced in theory. And then, using statistic and survey data, taking mountain area of southern Ningxia as an example, the theoretical assumes are verified. The results show that the rise of opportunity cost of farm labor leads to less diversified cropping structure. 展开更多
关键词 opporttmity cost of farm labor agricultural land use structure theoretical analysis empirical study
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