摘要
为明确不同种类硫肥对小麦光合性能等性状的影响,进行了3种硫肥效果的比较研究。施用硫肥的处理都表现为旗叶光合速率提高,旗叶和倒三叶及各生育时期顶部功能叶的叶绿素含量提高,旗叶硝酸还原酶活性增强,且子粒产量及产量构成因素有所提高。在对提高光合速率、叶绿素含量和产量构成因素的效果上以石膏的效果最明显,硫酸铵次之,硫磺的效果最差,而在提高硝酸还原酶活性上却依次为硫酸铵、硫磺和石膏。
In order to clarify the effects of different sulphur fertilizers on photosynthetic characteristics of wheat,a field experiment was conducted with three kinds of sulphur fertilizers,including sulphur,ammonium sulphate and gypsum.The results were that,comparing with ck,all the treatments with sulphur fertilizers showed higher photosynthetic rate in flag leaves,higher chlorophyll contents in the two or three leaves on the top of wheat plants,higher nitrate reductase(NR) activity,and improved grain yield components were improved.For the effects of improving photosynthetic rate,chlorophyll content and yield components,gypsum was the best,next was ammonium sulphate,and sulphur was the poorest.For the effect of enhancing nitrate reductase(NR) activity,however,the best sulphur fertilizer was ammonium sulphate,the next was sulphur and gypsum.
出处
《华北农学报》
CSCD
北大核心
2004年第1期67-70,共4页
Acta Agriculturae Boreali-Sinica
基金
河北省博士资金(00547001D-1)
河北省教育厅项目(2001114)
河北农业大学9816科技计划资助项目的部分内容
关键词
硫肥
冬小麦
光合性能
子粒
产量性状
光合速率
叶绿素含量
硝酸还原酶
Winter wheat
Sulphur fertilizer
Photosynthetic rate
Chlorophyll content
Nitrate reductase(NR)
Grain yield
