alexa Response of Different Water Deficit on Cotton Growth and Water Use Efficiency and Yield under Mulched Drip Irrigation


Irrigation & Drainage Systems Engineering

Author(s): SHEN Xiaojun

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Effects of Regulated Deficit Irrigation(RDI) on growth,yield and water use efficiency of cotton with drip irrigation under mulch were tested through artificial water control experiment in Urumqi,Xinjiang province.The results showed that want to obtain both high cotton yield and high water use efficiency will need irrigated about 450 mm.Although the proper time and moderate water deficit reduce the total biomass,it not only improved reproductive organs growing but beneficial to distributed from photosynthate to economic yield of cotton,water ues efficiency was improved too;the yield and water use efficiency increased 1.7% and 17.0% by appropriate amount of water deficit at some growing stages than adequate water supply at full gowing stage of mulched-cotton by drip irrigation.The experiment show that RDI can regulate the ratio of vegetative and nutrient growth,with reducing the redundance and saving much water,the purpose of water saving and yield increase can be reached.

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This article was published in Journal of Irrigation and Drainage and referenced in Irrigation & Drainage Systems Engineering

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