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2009 (4)

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Book
Cover crops and crop yields
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ISBN: 1617282111 9781617282119 Year: 2009 Publisher: New York Nova Science Publishers

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Keywords

Cover crops. --- Crop yields.


Periodical
A method for disaggregating NASS state yield estimates to county and agriculture statistics district yields using MODIS imagery ... annual report.
Authors: ---
Year: 2009 Publisher: [Washington, D.C.] : U.S. Dept. of Agriculture, Agricultural Research Service


Book
Determinants of Farm Policies in the United States, 1996-2008
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Year: 2009 Publisher: Washington, D.C. : The World Bank,

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This paper focuses on the political economy of United States (U.S.) farm policy since the Uruguay round trade negotiations concluded in 1994 and established the World Trade Organization (WTO). The continued ability of the powerful farm lobby in the U.S. to elicit support in the political arena is evident from this analysis. Yet there have been some substantial changes in policy that have reduced their distortionary effects, as well as some setbacks to liberalizing reform. New Doha round commitments could put further constraints on subsidies provided by some U.S. policy instruments. And despite the ability of the farm lobby to retain its support programs through 2012, there are several political uncertainties about the alignments that have allowed U.S. farm support to endure.


Book
Climate change and crops
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ISBN: 364209998X 3540882456 9786612362330 128236233X 3540882464 Year: 2009 Publisher: Berlin ; Heidelberg : Springer,

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Climate change is directly linked to the human activities, according to the Fourth Assessment Report of IPCC (2007). In last two decades of 20th Century, accelerated anthropogenic activities pushed up the atmospheric abundance of greenhouse gases, mainly CO2, CH4, and N2O, alarmingly which enhanced the radiative forcing of the Earth’s surface and thus perturbed its heat radiation balance. As a consequence, atmospheric characteristics, such as temperature, rainfall pattern, levels of CO2 and O3 have changed significantly, affecting the farm productivity. Although rising level of CO2 may have fertilizing effect on C3 crops, but concomitant rise in atmospheric temperature, O3 level and extreme weather conditions can not only nullify the fertilizing effect of CO2, but also drastically reduce the crop production, threatening food security to burgeoning world population. Agricultural crops are not only victim of climate variability and extreme whether conditions, but also serve as a potential source of CH4 and N2O. Therefore, in changed scenario, Kyoto Protocol (1997) has sought all signatory developed nations to cut down their emission levels as per their differential commitments to UNFCCC and developing nations to invest in less carbon emission projects to avert the process of global warming process. In this context, the present edition, which compiles latest findings of studies carried out by the scientists on climate change and crops around the world, serves as a ready reckoner to crop scientists, atmospheric scientists, ecologists, environmentalists, research scholars and post- graduate students to update their knowledge and understanding on this issue.

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