黑龙江农业科学Issue(2)：40-43,4.DOI:10.11942/j.issn1002-2767.2015.02.0040
不同水平氮素处理对彩椒光合特性的影响
Effect of Different Nitrogen on Photosynthetic Characteristics of Color Pepper
鲜开梅 1刘慧英2
作者信息
- 1. 新疆维吾尔自治区农技推广总站，新疆 乌鲁木齐 830049
- 2. 石河子大学，新疆 石河子832000
- 折叠
摘要
Abstract
In order to determine the best nitrogen fertilization formula ,soilless cultivation of fertilization photo‐synthetic characteristics of color pepper under different nitroqen levels was studied with Li‐6400 portable pho‐tosynthesis measuring system .The results showed that the highest chlorophyll content was N 15 ,followed by N20 ,N5 and N10 processing ,N2 .5 was the lowest .The daily variation leaf net photosynthetic rate (Pn)showed bimodal type ,there was a clear “photosynthetic noon break” phenomenon with the increasing of the nitrogen concentration ,the obvious growth trend was presented .The net photosynthetic rate of high nitrogen treatment N20 was lower than N15 ,but closed to N10 .The net photosynthetic rate of N2 .5 and N5 were low ;Diurnal transpiration rate of all treatments showed the obvious bimodal type ,the transpiration rate of N10 and N15 were high and changed dramaticly ,other three treatments had lower transpiration rate and changed gently in one day ;Stomatal conductance of N5 ,N10 and N15 were at higher level ,stomatal conductance change of high nitrogen treatment N20 was at the lowest level in a day .关键词
氮素水平/彩椒/光合特性/影响Key words
nitrogen level/color pepper/photosynthetic characteristics/influence分类
农业科技引用本文复制引用
鲜开梅,刘慧英..不同水平氮素处理对彩椒光合特性的影响[J].黑龙江农业科学,2015,(2):40-43,4.
