Research on Insufficient Irrigation Forecasting for Winter Wheat Based on Lower Limit Value of Dynamic Irrigation Amount
According to the measured data of winter wheat soil moisture and nutrients in the growth period in Linfen city, the insufficient irrigation forecasting model was proposed based on the dynamic irrigation lower limit value method and combined with the crop growth model.The forecast model was applied to Linfen city for the irrigation forecast in the growth period of winter wheat in the year of 2008-2009, 2009-2010, 2010-2011, 2011-2012, 2012-2013 and 2013-2014.The study results that: compared with the traditional irrigation mode, all the yield and benefit of the six years under the optimized irrigation system based on the above method increase by a different degree.The average rate of production and benefit increase is 9.94% and 17.50%, respectively.
winter wheatlower limit of dynamic irrigation amountinsufficient irrigation forecasting
NETL
NSTL
万方数据
维普
