植物营养与肥料学报Issue(2)：298-308,11.DOI:10.11674/zwyf.2014.0205
大田淹水对夏玉米养分吸收与转运的影响
Effect of waterlogging on nutrient uptake and transport of summer maize
摘要
Abstract
Two summer-maize hybrids , Zhengdan958 ( ZD958 ) and Denghai605 ( DH605 ) , were selected as experimental materials.A field experiment was performed to explore the effect of waterlogging on nitrogen (N), phosphorus ( P) and potassium ( K) absorption and transport of summer maize .Results show that N , P and K accumulation amounts are reduced significantly after waterlogging , and the decreases of nutrient accumulation of two cultivars are the most in the treatment of waterlogging at the three-leaf stage for 6 d, with 42.86%, 45.50%and 32.53%in ZD958 and 50.55%, 36.50% and 27.21% in DH605.The nutrient accumulation amounts of each organ and nutrient allocation proportions of grain are decreased significantly after the waterlogging , while the nutrient allocation proportions of stem and leaf are increased .The nutrient contents of stems and leaves are increased , while the nutrient contents of grains are decreased .Furthermore , each organ ’ s dry matter accumulation is reduced significantly after the waterlogging , and the decreases of two cultivars are the most at the treatment of the waterlogging at the three-leaf stage for 6 d.At the maturity, the dry matter weights of stem , leaf and grain of ZD958 are decreased by 25.93%, 30.14% and 43.39, and the dry matter weights of leaves and grains of DH 605 are decreased by 28.28%, 32.27% and 50.28%.The reductions of stem and leaf nutrient accumulation after the waterlogging are mostly due to the decrease of dry matter accumulation , and the nutrient transfer from stems and leaves to grains is decreased significantly after the waterlogging .It is most sensitive to be waterlogged at the three-leaf stage, followed by the six-leaf stage and the 10th day after the flower stage, and decreased with the increase of waterlogging duration .关键词
夏玉米/大田淹水/氮/磷/钾养分/干物质Key words
summer maize/field waterlogging/NP and K nutrients/dry matter分类
农业科技引用本文复制引用
任佰朝,张吉旺,李霞,范霞,董树亭,刘鹏,赵斌..大田淹水对夏玉米养分吸收与转运的影响[J].植物营养与肥料学报,2014,(2):298-308,11.基金项目
山东省现代农业产业技术体系建设经费（SDAIT-01-022-05）；公益性行业（农业）科研专项（201103003）；国家粮食丰产科技工程课题（2011BAD16B09）资助。 （）
