نتایج جستجو برای: net water required for farming
تعداد نتایج: 10653522 فیلتر نتایج به سال:
despite the fact that iran enjoys a high-potential agricultural sector in production of various products and the important role this sector plays in the development of non oil-based exports, a large amount of the government budget is being spent on the vegetable oil and oilseed rape (as animal food) import. for this reason, during the recent years the production of oil-based products is conside...
Biogeosciences Discussions This discussion paper is/has been under review for the journal Biogeosciences (BG). Abstract The Seine watershed has long been the food-supplying hinterland of Paris, providing most of the animal and vegetal protein consumed in the city. Nowadays, because of the land specialisation of agriculture made possible by the shift from manure-based to synthetic nitrogen ferti...
Organic farming (OF) has been believed to be capable of curtailing some hazardous effects associated with chemical farming (CF). However, debates also exist on whether OF can feed a world with increasing human population. We hypothesized that some improvements on OF may produce adequate crops and reduce environmental pollutions from CF. This paper makes comparative analysis of crop yield, soil ...
South Africa has adopted an ambitious new water legislation that promotes equity, sustainability, representativity and economic performance through water management decentralization, new local and regional management institutions, water users’ licensing, and the possible emergence of water rights’ markets. This paper addresses the diversity of water users and uses that currently exists in rural...
being an environment friendly and more sustainable farming system. Ironically, scientists one-half century Groundwater has become increasingly degraded by NO3, and this ago devoted much research emphasis to providing farmdegradation has been partially attributed to the use of commercial inorganic N fertilizers. Conversion from conventional fertilizer maners information on the beneficial use of ...
Dry spells in rainfed agriculture lead to a significant reduction crop yield or total loss. Supplemental irrigation (SI) with brackish water can reduce the negative impacts of dry on net CO2 assimilation farming semi-arid tropical regions and maintain productivity. Thus, objective this study was evaluate carbon rates, indexes for use efficiency, indicators salt stress maize plants under differe...
The Seine watershed has long been the foodsupplying hinterland of Paris, providing most of the animal and vegetal protein consumed in the city. Nowadays, the shift from manure-based to synthetic nitrogen fertilisation, has made possible a strong land specialisation of agriculture in the Seine watershed: it still provides most of the cereal consumed by the Paris agglomeration, but exports 80 % o...
Unique biological characteristics of Nile tilapia (Oreochromis niluticus), including high fecundity, maturation at young ages, well-adapted to environmental conditions, and high resistance again stresses and pathogens, make it a good candidate for aquaculture. However, its potential ecological risks are the major challenges for the decision makers. This study was aimed to study on the feasibili...
Existing practice of solar water pumping in multi-floored buildings employs Top Floor Storage Method. In this method, considerable amount of water is pumped to unnecessary heights, resulting in energy wastage. Present paper discusses a novel scheme “Individual Floor Storage Method” for solar pumping. Here water is pumped to the required optimum heights thus avoiding wastage of energy. This resu...
OBJECTIVE To examine the environmental life cycle from poppy farming through to production of 100 mg in 100 mL of intravenous morphine (standard infusion bag). DESIGN 'Cradle-to-grave' process-based life cycle assessment (observational). SETTINGS Australian opium poppy farms, and facilities for pelletising, manufacturing morphine, and sterilising and packaging bags of morphine. MAIN OUTCO...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید