Irrigation Scheduling Based on Meteorological Data for Cotton with Drip Irrigation under Plastic Film Mulch in North Xinjiang
An experiment was conducted at Central Irrigation Station of Xinjiang Production and Construction Corps from May to October in 2007. Seven treatments are set to investigate the effects of irrigation scheduling patterns on water consumption, growth and yield and water use efficiency of cotton cultivated with drip irrigation under plastic film mulch in north Xinjiang. Irrigation volumes for the seven treatments are set as different proportion of reference crop evapotranspiration (ET0). Experimental results show that in order to achieve a good cotton yield, water consumption should be adjusted in the range of 360 mm to 405 mm in total growth season. A suitable irrigation schedule pattern is developed for irrigation management based on meteorological data on cotton field with drip irrigation system under plastic film mulch: irrigation is conducted one time per 10 days with irrigation quota of 60 % percent of ET0 during budding and later flowering-boiling stages, and once per 7 days with irrigation quota of 75% of ET0 during early flowering-boiling stage; However, irrigation should be delayed one day for per 5 mm rainfall increment.
drip irrigation under plastic film mulchcottonwater requirementirrigation schedule
国家科技期刊平台
NSTL
万方数据
维普
