三江平原水稻水分生态效益试验研究

试验在三江平原宝清水利综合试验站进行,以空育131为试验材料,设置3个不同灌溉模式,研究了不同灌溉模式水稻的生育特性、产量和水量消耗。结果表明,从节水角度看,控制灌溉水稻田间耗水量最小,湿润灌溉比控制灌溉多达43.5%,淹灌最大;从产量角度看,控制灌溉产量不及湿润灌溉和淹灌,湿润灌溉比控制灌溉高23.4%。可以根据当地资源条件并综合考虑节水效益和产量效益,选用合适的灌溉制度。

Comparison of Experiments on Some Rice Irrigation Methods in Sanjiang Plain

The experiment was done in the Sanjiang station in Baoqing county in Sanjiang plain.The characteristics of growth and development,grain yield and water consumption were studied under the conditions of three different irrigation systems with the paddy rice of Kongyu 131.The results show that the water consumption of controlled irrigation is the least in the three models,and the wetness irrigation's is 23.4% more than the controlled irrigation's,the traditional paddy control's is the lowest.In the facet of grain yield,controlled irrigation's is lower than wetness irrigation's and the traditional paddy control's,the wetness irrigation's is 23.4% higher than the controlled irrigation's,and the traditional paddy control is 12.9% higher than the controlled irrigation's.The suitable irrigation system should depend on the local resource conditions,considering the general effects of water-saving and yield.This offers theory and practical basis to the water management of paddy rice in Sanjiang plain,and is also convenient to further play the potential of rice increase and achieve the object of efficient use of water.