The study of the groundwater resources and their properties are very important due to the vast desert areas and arid conditions. Given the current situation in Iran, the water supply is one of the most important territorial and environmental problems. In this study, groundwater resources were surveyed and mapped in Yazd Province and their properties were modeled to determine their effectiveness...

In natural ecosystems, biological relationships have serious effects on system stability. Allelopathic is negative or positive effect of a plant on other plant growth. Today this word is used for rangelands, same as agricultural areas. Because of good herbage production, Medicago is most common plant in agricultural rotations and rangelands. Therefore investigation of its allelopathic qualities...

abstract in the recent decades, the iranian economy has been highly depended on oil revenues. considering the fact that a great part of non-oil exports are agricultures product, studying factors influencing growth of agricultural sector plays an important role in the iran's economy. supply domestic shocks and domestic demand pressure along with deviation of exchange rates from its equilibrium, ...

this article examines the livelihood strategies of land scarce peasants in ethiopian. land scarce peasants have a limited livelihood security on a sustainable manner and bypassed by major development programmes. the study was centred on two sets of rationales. first, for those peasants who do not have sufficient farmland, agriculture provides only a limited portion of households’ livelihood sec...

We assess long-run patterns of global agricultural productivity growth between 1970 and 2005 and examine the relationship between investments in technology capital and productivity. To measure agricultural total factor productivity (TFP) we employ a Solow-type growth accounting method to decompose output growth into input and TFP growth. For technology capital we construct two indexes reflectin...

In natural ecosystems, biological relationships have serious effects on system stability. Allelopathic is negative or positive effect of a plant on other plant growth. Today this word is used for rangelands, same as agricultural areas. Because of good herbage production, Medicago is most common plant in agricultural rotations and rangelands. Therefore investigation of its allelopathic qualities...

The term, biosolids, is generally used to refer to those waste products that have been stabilized by treatment of the sewage sludge for beneficial reuse through appropriate management (Davis, 2002). The agronomic and environmental benefits from the organic material and fertilizing elements contained in the biosolids are essential for maintaining soil fertility. This has been a major reason for ...

nowadays, with population growth in urban areas, providing safe water and health is considered basic needs of human, alongside the various pollutants due to urban activities, agriculture and industrial areas on adjacent ranges into urban water resources around the environment is such that study necessary to prevent the pollution of water resources and identification of pollution sources shows. ...

Although the agricultural sector consumes more than 90% of the extracted water, its efficiency is lower than other sectors. Also, according to the population growth and critical role of food security, and the necessity to supply water to other sectors, an increasing pressure to save water, optimized consumption and increasing water use productivity in agriculture will occur in the future. Nowad...

Agriculture plays a crucial role in the development of the Indian economy. It accounts for about 19 percent of GDP and about two thirds of the population is dependent on the sector. (Economic Survey, 2009). Recognizing the importance of agriculture sector in India’s development, the Government and the Reserve Bank of India (RBI) have played a vital role in creating a broad-based institutional f...