“薄、浅、湿、晒”与节水控灌两种灌溉模式对水稻耗水量和产量的影响  

Effects of two irrigation modes of TW and WI on water consumption and yield of rice planting

作　　者：罗维钢 黄忠华 李春力 吴家法 LUO Wei-gang;HUANG Zhong-hua;LI Chun-li;WU Jia-fa(Nanning Irrigation Experiment Station,Nanning 530001,China;College of Agriculture,Guangxi University,Nanning 530005,China)

机构地区：[1]南宁市灌溉试验站,南宁530001 [2]广西大学农学院,南宁530005

出　　处：《广西水利水电》2020年第5期1-4,共4页Guangxi Water Resources & Hydropower Engineering

基　　金：国家自然科学基金(51469003),广西科技计划-基地和人才专项(桂科AD17195060)。

摘　　要：开展稻田"薄、浅、湿、晒"(TW)和节水控灌(WI)试验,研究不同灌溉模式对水稻耗水量和产量的影响。结果发现:1.在水稻各生长期中,TW分蘖后期耗水量显著低于WI(P<0.05,下同),其他时期的水分消耗量与WI相近,彼此差异不大。2.TW和WI的穗长、粒长、千粒重及稻谷产量等指标均非常接近,没有显著性差异;由于TW总耗水量低于WI,因而其稻谷的水分利用效率显著高于WI。试验结果表明,相比于节水控灌,"薄、浅、湿、晒"灌溉模式更有利于降低稻田耗水量,提高水稻的水分利用效率。Experiments were carried out to study the effects of two irrigation modes of thin-shallow-wet-dry(TW)and water-saving controlled irrigation(WI)on water consumption and yield of rice planting.The results show that under P<0.05,the water consumption of TW is significantly lower than that of WI in the late tillering period while is similar to that of WI in other growing periods;TW and WI have very close indexes of spike length,grain length,1000-grain weight and grain yield;the water use efficiency of TW is higher than that of WI since its total water consumption is lower.It is concluded that TW mode requires less water consumption and has higher water use efficiency compared with WI mode.

关 键 词：“薄、浅、湿、晒” 节水控灌 灌溉模式 耗水量 产量 水稻 

分 类 号：S275[农业科学—农业水土工程] S511[农业科学—农业工程]