نتایج جستجو برای: 2008 agricultural data
تعداد نتایج: 2590378 فیلتر نتایج به سال:
THE NEED FOR TARGETED AGRICULTURAL CONSERVATION The 2008 Gulf of Mexico Hypoxia Action Plan was developed in response to national water quality impairments that were largely caused by agricultural land uses within and around the US Corn Belt (Alexander et al. 2008; Mississippi River Watershed Nutrient Task Force 2008). plan prompted states create nutrient reduction strategies achieve a...
The efficacy of Indexing and Abstracting service for effective organization, storage and retrieval of information resources for agricultural research in Ahmadu Bello University, Zaria necessitated examining the situation in Agricultural Library, Institute for Agricultural Research, Samaru. The study examines the processes, awareness and problems militating against the effective exploitation of ...
development assistance, investments in agriculture through research and technology transfer have been central to rural development strategies. After falling from grace in the 1990s, a rush of new initiatives — and the World Bank’s 2008 World Development Report on “Agriculture for Development” — suggests that agriculture and agricultural science and technology are once again riding high in the d...
Agricultural expansion remains one of the leading causes of deforestation, biodiversity losses and environmental degradation across the world, especially in the tropics (Angelsen et al., 1999 and Norris, 2008). From 1961 to 1993, the world population increased by 80% (Goklany, 1998). Due to the rapidly expanding human populations large increases in the supply of agricultural products are requir...
Soil microbial diversity is an important index of agricultural productivity (Nimisha Sharma et al,.2010; Kent and Triplett, 2002; Isik, 2008). Both plant and the soil types influences the microbial diversity. Rhizosphere microbial diversity usually influenced by both plant and soil types. Plants and microorganisms interact with each other and co evaluate together. Their balance is important for...
On a world scale, a net transport of P to the oceans occurs, maintained by weathering of minerals and by erosion. The soil plays a different role regarding phosphorus in different agricultural systems. Without adding fertilisers, a soil can supply P for a limited time, by weathering or by mineralisation of indigenous organic matter. When a higher productivity is aimed at, fertilisers have to be...
Space borne radar data facilitates continuous monitoring of almost any location on the earth (limitations in polar zones) with quite low costs. Almost weather-independent operation of radar systems enables a reliable and continuous record of data from earth’s surface. In the framework of an ESA pilot project (AO335), ENVISAT polarimetric SAR data of years 2004 and 2005 are examined for their us...
An inventory for Life Cycle Analysis of agricultural products must address questions of representatively and coherence of models. This paper discusses the possibilities of modelling the input and production of typical farms to establish inventories that are consistent with higher level statistical information. Energy use has been modelled for typical Danish farms and compared with the national ...
A Research Data Alliance (RDA) Interest Group has formed around a community of scientists and researchers who wish to make agricultural data, information, and knowledge more accessible. The objective of the Agricultural Data Interest Group is to get together active representatives of the major international institutions that work on agricultural research and innovation worldwide, in order to ad...
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