Raising agricultural productivity and accelerating agricultural growth are commonly promoted as core development strategies throughout Africa, since the majority of the continent’s poor and malnourished population depends largely on farming. Despite these strategies, agricultural growth in Africa lags behind overall economic growth, and agricultural performance falls below that of other develop...

7 Heihe River Basin is located in the arid inland area of northwest China and is facing 8 serious water shortage problems. Since irrigation is the largest water consumer in the 9 middle reaches of the Basin, it is crucial to study the crop yields and water 10 consumption in order to improve the agricultural water productivity and to support 11 sustainable economic development in this region. Ba...

Salinization of agricultural areas due to intensive practices and irrigation is an important feature limiting crop yield and productivity. Inhibition of plant growth and even plant death by salinity is due to a reduction in water availability, sodium ion accumulation and mineral imbalances. In this context, ROS will be produced in both SALT STRESS AND GLUTATHIONE-DEPENDENT ENZYME ACTIVITIES IN ...

The great challenge of the agricultural sector is to produce more crop from less water, which can be achieved by increasing crop water productivity. The modernization of the irrigation systems offers a number of possibilities to expand the economic productivity of water and improve the virtual water status. The objective of the present study is to assess the global water productivity (GWP) with...

in arid, semiarid, and mediterranean climates, particularly in west asia and north africa, farmers face limited water resources and must develop irrigation management methods to increase crop production while reducing water use. this study examined methods to reduce irrigation water loss and increase maize water productivity at safiabad agricultural research center in dezful, iran in 2007 and 2...

Environmental and economic problems in water bodies can result from the lack of understanding of these processes. For example, sediment moving through a watershed transports nutrients and pollutants that can damage aquatic habitat and reduce soil productivity in agricultural areas. In addition, sediment movement and deposition in streams can increase the cost to maintain navigation and interfer...

Nowadays, agricultural R&D provides new and developed technologies to create modern agricultural producing methods. During recent years, improving agricultural productivity is affected by not only domestic R&D investments but also foreign countries R&D investments. Nowadays, according to new growth models, R&D is the base of productivity. Recent economic theories consider agricultural research ...

Capillary rise from shallow groundwater can decrease the need for irrigation water. However, simple techniques do not exist to quantify the contribution of capillary flux to crop water use. In this study we develop the Agricultural Water Productivity Model for Shallow Groundwater (AWPM-SG) for calculating capillary fluxes from shallow groundwater using readily available data. The model combines...

The purpose of this paper is to analyze the productivity change for agricultural cooperatives in Japan measured by nonparametric output-oriented Malmquist indices of total factor productivity (TFP)┻ The productivity change is decomposed into technical change and technical efficiency change┻ Linear programming techniques are used to calculate the productivity change using a panel data set for 44...

Many studies have analyzed the impact of climate change on crop productivity, but comparing the performance of water management systems has rarely been explored. Because water supply and crop demand in agro-systems may be affected by global climate change in shaping the spatial patterns of agricultural production, we should evaluate how and where irrigation practices are effective in mitigating...