نتایج جستجو برای: sustainable irrigation

تعداد نتایج: 164097  

2014
Naveed Alam Naveed ALAM T. N. Olsthoorn Mahboob Alam

Farmers in the Indus Basin, Pakistan have generally switched to groundwater for additional water supplies due to the irregular supply of irrigation water; currently over 50% of the agricultural land in the basin is at least partially irrigated by tubewells. These wells pump fresh groundwater, which essentially is the result of massive leakage from irrigation canals into the originally saltwater...

Journal: :Journal of environmental management 2015
Ernest O Nnadi Alan P Newman Stephen J Coupe Fredrick U Mbanaso

Most available water resources in the world are used for agricultural irrigation. Whilst this level of water use is expected to increase due to rising world population and land use, available water resources are expected to become limited due to climate change and uneven rainfall distribution. Recycled stormwater has the potential to be used as an alternative source of irrigation water and part...

2013
Klas Andersson Annika Lindskog Johan Martinsson

Currently, politicians, university representatives, scholars and leading NGOs share a strong belief in the ability of educational systems to generate positive attitudes to sustainable development (SD) among citizens, with the idea of Education for Sustainable Development (ESD) as perhaps the most apparent expression of this conviction. The aim of this paper is to investigate whether ESD might h...

2007
J. C. J. M. van den Bergh P. Nijkamp

This paper f ocuses attention on the relevance of the notion of sustainable development in a regional context and the use of models for regional sustainable development policy. The paper discusses first the notion of sustainable development by linking socioeconomic and ecological elements. Time and space prove to be important dimensions of sustainable development. In a spatial context, an often...

2010
Hongyong Sun Yanjun Shen Qiang Yu Gerald N. Flerchinger Yongqiang Zhang Changming Liu Xiying Zhang

Limited precipitation restricts crop yield in the North China Plain, where high level of production depends largely on irrigation. Establishing the optimal irrigation scheduling according to the crop water requirement (CWR) and precipitation is the key factor to achieve rational water use. Precipitation data collected for about 40 years were employed to analyze the long-term trend, and weather ...

ژورنال: علوم زراعی ایران 2020

Study of potential of alfalfa ecotypes in biomass partitioning and harvestable and non-harvestable parts as well as induction of summer dormancy under water scarcity can lead to develop adapted cultivars for sustainable farming system andto meet targets of the breeding program. Therefore, this experiment was conducted with 10 alfalfa ecotypes under four irrigation managements at Seed and Plant ...

Journal: :Computers & OR 2006
K. Srinivasa Raju D. Nagesh Kumar Lucien Duckstein

The objective of the present paper is to select the best compromise irrigation planning strategy for the case study of Jayakwadi irrigation project, Maharashtra, India. Four-phase methodology is employed. In phase 1, separate linear programming (LP) models are formulated for the three objectives, namely, net economic benefits, agricultural production and labour employment. In phase 2, nondomina...

Journal: :Indian Journal of Science and Technology 2010

Journal: :Japan Agricultural Research Quarterly: JARQ 2011

2011
Alberto Pardossi Luca Incrocci

Intensive vegetable cropping systems use large amounts of water and nutrients. Excess application of water and nutrients results in economic losses (higher fertilizers and pumping costs) and contributes to nutrient leaching and environmental degradation. Increasing nutrient use efficiency (NUE) and water use efficiency (WUE) should be a priority for sustainable horticulture. This increased NUE,...

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