宁夏中部干旱区马铃薯种薯耗水规律及水分效应研究  

A study on water consumption regulation and water effect of potatoes in the middle of dryland of Ningxia

作　　者：尹娟[1,2] 邱小琮[3] 

机构地区：[1]宁夏大学土木与水利工程学院,宁夏银川750021 [2]宁夏大学旱区现代农业水资源高效利用教育部工程研究中心,宁夏银川750021 [3]宁夏大学生命科学学院,宁夏银川750021

出　　处：《宁夏工程技术》2011年第4期334-337,共4页Ningxia Engineering Technology

基　　金：国家科技支撑计划基金资助项目(2009BADC5B05);宁夏高等学校科学研究基金资助项目(2009年);国家自然科学基金资助项目(51169020);宁夏自然科学基金资助项目(NZ1157)

摘　　要：通过开展马铃薯种薯覆膜与露地滴灌田间试验,研究水分对马铃薯种薯产量的影响及马铃薯耗水规律.结果表明:覆膜地马铃薯种薯产量极显著地高于露地马铃薯种薯产量;不灌水处理马铃薯种薯产量极显著地低于其他各灌水处理,灌溉定额越大,马铃薯种薯产量越高;灌溉定额一定,产量、耗水量和耗水模系数及水分利用效率均呈灌水2次>灌水1次>灌水3次的规律;灌溉定额越大的处理耗水量越大,在全生育期马铃薯的耗水规律为现蕾期>花期>苗期>成熟期,现蕾期耗水量最大.露地比覆膜耗水量大18.43 mm,膜下滴灌马铃薯的水分利用效率明显高于露地,说明膜下滴灌马铃薯技术有利于保持土壤水分,有效节约水资源,适宜在宁夏中部干旱地区广泛推广.Based on the study of field experiments,water consumption regularities and soil water effecting yield of potato.The results show that the yields of potato in mulch cover land are obliviously higher than in bare land,the more irrigation quota,the higher of the yields and water consumption of potato;the law of yield,water consumption,water consumption coefficient and water use efficiency of potato were tested 2 times irrigation water〉1 irrigation water〉3 times irrigation water〉 no irrigation.The law of water consumption is buding〉florescence〉seedling stage〉maturity;water consumption of bare land is higher than that of mulch cover,water use efficiency with mulch cover is obviously higher than that with bare land.It shows that mulch cover drip irrigation can save water resource,and is feasible in the middle dryland of Ningxia.

关 键 词：马铃薯种薯 耗水量 产量 耗水模系数 水分利用效率 

分 类 号：S532[农业科学—作物学]