植物营养与肥料学报Issue(6)：1287-1296,10.DOI:10.11674/zwyf.2013.0602
不同水分管理下覆膜旱植稻营养特性及其与光合生理的相关性研究
Relationships between nutrition uptake characteristics and photosynthetic physiology under different water managements of mulching upland rice
摘要
Abstract
Absorption characteristics of Ca and SiO 2 and transpiration rate under mulching cultivation of upland rice were studied by using P 88 s/1128 as material and with different water managements as treatment .The result shows that the mulching has a significant effect on yield but not on yield component .The absorption amount of calcium in panicle is 1.58 kg/ha under the mulching and moist treatment which is significantly higher than that of the irrigation treatment .The cultivation mode and water management have some influence on the accumulation of SiO 2 and Ca at the late stage , and the interaction of these two processing factors is significant .The corrrelation between the SiO2 quantity of panicle absorbed and transpiration rate is significant ( r=0.8561*, P=0.0066 ) .Mulching and irrigation at the later stages has promoting effects for transpiration rate which is beneficial for absorbing nutrition and carbohydrate translation from stem to panicle .But it would easy to lodging if the transpiration rate so high that carbohydrate in the stems exports excessively .关键词
覆膜/水分/钙/二氧化硅/蒸腾速率/相关性Key words
mulching/water/Ca/SiO2/transpiration rate/correlation分类
农业科技引用本文复制引用
陈恺林,刘洋,张玉烛,方宝华,黄泽辉,刘功朋,李超..不同水分管理下覆膜旱植稻营养特性及其与光合生理的相关性研究[J].植物营养与肥料学报,2013,(6):1287-1296,10.基金项目
“十二·五”科技支撑计划重大项目粮食丰产科技工程“长江中游南部（湖南）双季稻持续丰产高效技术集成创新与示范”（2011BAD16B01）；“长江中游南部（湖南）水稻丰产节水节肥技术集成与示范”（2013BAD07B11）项目资助。 （）
