贵州省水稻控灌节水增产效益分析

结合近几年在贵州地区实施的水稻节水增产灌溉试验,对水稻在科灌、科蓄两种灌溉模式下的节水增产效益进行了探讨。研究表明,在农艺技术条件和气象因素相同的条件下,科灌、科蓄两种灌溉模式均提高了试验区水稻的产量和水分生产率,其节水、增产增收效益显著。综合增产节支效果科灌最好,科蓄次之,且两者均优于普灌,具有重要的推广价值。研究成果为该区实施水稻节水栽培提供了可靠依据,对促进该区节水型社会建设、保障粮食安全具有重要意义。

Analysis on Raising Rice Yield and Economic Benefit by Using the New Irrigation Technique with Water-saving

Two irrigation models of scientific irrigation and storing rainwater pattern were used to study the effects on rice yield in Guizhou.The results show that two irrigation models can effectively improve the rice yield and water production rate in the test area.The comprehensive effect of the scientific irrigation pattern is better than the storing rainwater pattern and the comprehensive effect of two irrigation models is better than the traditional irrigation pattern under the same cultivation technique and meteorological factors.Two irrigation models should be popularized in Guizhou.The research results provides the reliable base in rice production with water-saving cultivation and has the important meaning in building water-saving society and ensuring food safety in Guizhou.