利用叶绿素计对短季棉氮素营养诊断的初步研究

作物学报 ›› 1999, Vol. 25 ›› Issue (04): 483-488.

利用叶绿素计对短季棉氮素营养诊断的初步研究

邬飞波;许馥华;金珠群

浙江农业大学农学系，浙江杭州，310029

收稿日期:1998-03-27 修回日期:1998-09-11 出版日期:1999-07-12 网络出版日期:1999-07-12
通讯作者: 邬飞波

A Preliminary Study on Nitrogen Nutrition Diagnosis for Short-Season Cotton with a Chlorophyll Meter

Wu Feibo;Xu Fuhua;Jin Zhuqun

Department of Agronomy, Zhejiang Agricultural University, Hangzhou 310029

Received:1998-03-27 Revised:1998-09-11 Published:1999-07-12 Published online:1999-07-12
Contact: Wu Feibo

摘要/Abstract

摘要： 研究了以叶绿素计诊断短季棉的氮素营养。结果表明，不同生育时期功能叶叶绿素计读数与叶绿素含量、全氮含量(Na，Ndw)及施氮水平呈极显著线性正相关，其中对Na的正相关高于Ndw；与光合强度呈极显著指数相关；与产量、三桃数呈极显著二次曲线回归。获得了不同生育时期叶绿素计诊断指标。叶绿素计变动1格的参考施氮量为23.3~25

关键词: 短季棉, 叶绿素计, 氮素营养诊断

Abstract: A two-site experiments for five to six nitrogen levels was carried out to study the relationship between chlorophyll meter readings (SPAD value) and physiological and yield traits in short-season cotton. The result showed that there are significant linear correlations between SPAD value and both con

Key words: Short-season cotton (Gossypium hirsutum L.), Chlorophyll meter, Nitrogen nutrition diagnosis

邬飞波;许馥华;金珠群. 利用叶绿素计对短季棉氮素营养诊断的初步研究[J]. 作物学报, 1999, 25(04): 483-488.

Wu Feibo;Xu Fuhua;Jin Zhuqun. A Preliminary Study on Nitrogen Nutrition Diagnosis for Short-Season Cotton with a Chlorophyll Meter[J]. Acta Agron Sin, 1999, 25(04): 483-488.

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