Agricultural production systems face increasing threats from more frequent and extreme weather fluctuations associated with global climate change. While there is mounting evidence that increased plant community diversity can reduce the variability of ecosystem functions (such as primary productivity) in the face of environmental fluctuation, there has been little work testing whether this is tr...

the main objective in production of any rainfed crop, including barley farming is to increase water productivity along with stability in the production of the rainfed crop through improvement of the agronomic management including limited single irrigation (si) and sowing date (sd). in order to determine optimal si management and limited water allocation scenarios, a field experiment was conduct...

The increase in water productivity is likely to play a vital role in coping with the additional requirement for food production and the growth of the uses of water other than in agriculture in the coming century consistent with the shift from productivity per unit land to productivity per unit water, the nutritional productivity of water is calculated as energy, protein, calcium, fat, Vitamin A...

Water problems are typically studied at the level of the river catchment. About 70% of all water is used for agriculture, and agricultural products are traded internationally. A full understanding of water use is impossible without understanding the international market for food and related products, such as textiles. The water embedded in commodities is called virtual water. Based on a general...

Agriculture accounts for most of the renewable freshwater resource withdrawals in Malawi, yet food insecurity and water scarcity remain as major challenges. Despite Malawi’s vast water resources, climate change, coupled with increasing population and urbanisation are contributing to increasing water scarcity. Improving crop water productivity has been identified as a possible solution to water ...

Investigation of factors affecting total and partial productivity with applying these factors for reforming producers' economical/ technical management may provide a proper base for enhancing productivity and profitability as well, and then leading a more sustainable situation for Pistachio orchards in the future. In this paper with respect to scattering type of statistical population, a multi ...

in order to study of deficit irrigation levels on wheat grain yield cultivars based on water productivity indices, an experiment was conducted in a split plot arrangement in randomized complete block design at the field of agricultural and natural resources center of isfahan (kabutarabad research station). three levels of irrigations: 60% of full irrigation (f1) and 80% full irrigation (f2) and...

water use productivity is one of the most important factors in scientific agriculture. it is equal to 0. 7 kg of production per cubic meter of irrigation water (kg/m3) in iran which is very low in comparison with advanced countries (1 to 2 kg/m3). current research studies temporal and spatialchanges of water use productivity in hamedan province in iran using geographic information system (gis),...

We also learnt much about the conditions under which agriculture-led growth is most likely to succeed. There are five key conditions. First, agricultural growth needs to be technologically driven so that output prices can fall while farm incomes increase. It is not enough to simply use more farm inputs like fertilizer and irrigation water and investments in productivity-enhancing agricultural r...