搜索结果: 1-7 共查到“农学总论 economics”相关记录7条 . 查询时间(0.078 秒)
Economics and environmental analysis of Mediterranean greenhouse crops
Toxicity nitrogen water gross margin risk labour
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2011/1/13
The aim of this paper is to show that intensive agriculture, as greenhouse crops that produce a high level of environmental pollution, both by nitrogen fertilization as pesticides used, may be distrib...
Effect of seed rate, row spacing and fertility levels on relative economics of soybean (Glycine max L.) under temperate conditions
Fertility seed rate soybean spacing relative economics temperate
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2011/1/10
A field experiment was conducted at Shalimar campus during kharif seasons in 2004 and 2005 on a silt clay loam soil, with average available N and K, and low P. The experiment was done to study the pro...
Improving the Economics of Greek Agricultural Holdings: The Case of Asparagus Farming
asparagus economicity competitiveness linear programming parametric programming
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2010/11/12
The need to improve the competitiveness of Greek agricultural holdings necessitates a
restructuring of crops and the promotion of crops with a commercial demand, which achieve a higher financial gain...
THE INSTITUTIONAL ECONOMICS OF RURAL DEVELOPMENT: BEYOND MARKET FAILURE
rural development market failure third sector
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2010/12/7
This paper examines and compares institutional arrangements addressing market failures endemic to rural areas. It argues that rural market failures cannot be satisfactorily addressed by for-profit fir...
Influence of Intercropping and Sources of Nitrogen on Yield Attributes, Yield and Economics of Cotton
Cotton intercropping organic inorganic yield economics
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2010/11/11
Field experiments were conducted at Tamil Nadu Agricultural University, Coimbatore, India
during winter (August - January) seasons of 2002 - 03 and 2003 - 04 in cotton to evaluate the effect of inter...
Yield Attributes, Yield and Economics of Cotton as Influenced by Intercropping Unconventional Greenmanures
Unconventional greenmanure cotton yield attributes yield economics
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2010/11/10
Field experiments were conducted in summer 2003 and winter 2003-04 to find out the effect
of unconventional greenmanures on growth, yield and economics of cotton. Three greenmanures viz., marigold, s...
Climate change research by ILRI informs Stern Review on the Economics of Climate Change
Climate change Economics of Climate Change
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2006/11/27
08 November 2006，In July 2005, the British finance minister asked Sir Nicholas Stern to lead a major review of the economics of climate change, to understand more comprehensively the nature of the eco...