黑土、黑钙土稻作耗水规律及水分生产效率试验研究  

Experiment Study on Water Consumption Regularity and Water Use Efficiency of Rice in Black Soil and Chernozem

作　　者：燕茹[1,2] 贾春梅[1,2] 张忠学[1,2] 

机构地区：[1]东北农业大学水利与建筑学院,哈尔滨150030 [2]农业部农业水资源高效利用重点实验室,哈尔滨150030

出　　处：《节水灌溉》2015年第11期37-39,43,共4页Water Saving Irrigation

基　　金：国家科技支撑计划课题(2012BAD08B05)

摘　　要：通过盆栽试验,采用D311试验设计方法,研究黑土和黑钙土两种土壤类型中灌水下限和氮、钾肥施用量3种因素对水稻耗水规律以及水分生产效率的影响。结果表明:稻作在黑土和黑钙土中生长全生育期的耗水规律基本相同,但是水稻每日耗水量和各生育期耗水量均有差异;对于黑土提高水稻的水分生产效率可通过增加施氮量来实现;增施氮肥同时降低灌水下限是提高黑钙土稻作水分生产效率的最有效途径。A pot experiments with the D311 design method was conducted to study the effect of the lower limit of irrigation, nitrogen and potash fertilizer on water consumption regularity and water use efficiency in black soil and chernozem. The results showed that soil types has no effect on the water consumption of rice in whole growth period, but has effect on the daily water consumption and water consumption in each growth period of rice. For black soil, increasing the amount of nitrogen can improve water use efficiency of rice, while increasing the amount of nitrogen with reducing the water floor at the same time is the most effective way to improve the water use efficiency of rice in chernozem.

关 键 词：水稻 黑土 黑钙土 水分生产效率 

分 类 号：S274[农业科学—农业水土工程]