introduction: nowadays, due to lack of water resources and increasing demand for water, agricultural water planning issues need further consideration. with proper planning and determination of irrigation depth and time, the effects of stress and yield loss on the plants are reduced. irrigation scheduling is one of the most important factors in crop’s quality and quantity. the main objective of ...

Restricted water resources are a limiting factor for irrigation applications throughout the world. The effects of irrigation regimes (amount) on cotton lint yield are known, but there is little information on the effect of irrigation regimes on seed quality of cotton. In this study, the effects of deficit irrigation after the onset of flowering on lint yield and seed quality of cotton (Gossypiu...

abstract rainwater harvesting (rwh) is one of the most effective water resources management techniques for confrontation with water shortage condition. rwh which is basically known as a traditional method, has been developed rapidly and being used widely in dryland countries throughout the world. rwh is defined as collecting and storing rainwater from nearby catchment and delivering it to plant...

with population growing throughout the world, it is necessary to optimize water use,especially in agricultural lands. in order to conduct technical and economical evaluation ofdrip and furrow irrigation methods under deficit irrigation of cotton, a field experiment wascarried out during 2010 growing season at experimental farm of orzoueyeh agricultural andnatural resources research center in ke...

the extensive use of pesticides in agriculture is compromising soil and water quality. one major concern is protecting water resources from contamination. the main objective of this research was measuring 2,4- d in a silty clay soil and simulating temporal transportation of this herbicide in soil using a leachp model, in a corn root zone field. 2,4- d was applied at 3.5 kg a.i./ha, followed by ...

water is the most limiting factor in irrigated agriculture, mainly in mediterranean environments, as in the case of southwest spain. in this area, almond is one of the most valuable crops due to its high drought tolerance. this work examines the crop coefficients (kc) based on four drainage lysimeters installed in an experimental young almond orchard. complementary, two deficit-irrigation treat...