中国麻业科学Issue(10)：244-248,5.
氮钾施肥对苎麻光合速率及叶绿素相对含量的影响
Effect of Nitrogen and Potassium Fertilization on Net Photosynthetic Rate and Chlorophyll Relative Content of Ramie
摘要
Abstract
In order to reveal photosynthesis change in ramie under different fertilization conditions of nitrogen and potassium , an orthogonal experiment with two factors and four levels was designed , in which Huazhu No.4 was chosen as the experimental material in field .Net photosynthetic rate and SPAD value were analyzed during each growth stage in three harvest seasons .The results showed that nitrogen had more effect on net photosynthetic rate and SPAD value than potassium .Potassium had a sensitive effect below mid-level nitrogen and this effect would be covered above mid -level nitrogen .Potassium im-proved net photosynthetic rate and SPAD value relatively evident during the rapid growth period , whereas it had less effect on them during fiber maturity period .Nitrogen was helpful for net photosynthetic rate , while potassium was useful for SPAD value during harvesting periods .These results might offer important references for studying formation mechanism of ramie yield .关键词
苎麻/净光合速率/SPAD值/施肥Key words
ramie ( Boehmeria nivea ( L.) Gaud)/net photosynthetic rate/SPAD value/fertiliza-tion分类
农业科技引用本文复制引用
朱聪,代小兵,汤涤洛,劳承英,邓纲,钟新月,彭定祥..氮钾施肥对苎麻光合速率及叶绿素相对含量的影响[J].中国麻业科学,2013,(10):244-248,5.基金项目
国家麻类产业体系（CARS-19-E12）；国家科技支撑计划课题 （）
