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Author:
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Issue:
xi lv ping yu huan jing tiao jian
Author(s):
SHU Ying
,
YAN Mengzuo
Pages:
20
-
25
Year:
1980
Issue:
1
Journal:
Wenzhou Agricultural Science and Technology
Keyword:
细绿萍
;
生长率
;
固氮酶活性
;
生长速度
;
环境条件
;
光照强度
;
固氮能力
;
温度高
;
含氮量
;
全光照
;
Abstract:
<正> 细绿萍的生长需要一定的环境条件。温度、光照、营养、空气和湿度、水和土壤等对细绿萍的固氮、光合、吸收、形态、色泽等等方面均有密切关系,认识这些问题,对于养好用好细绿萍是有一定意义的。一、温度细绿萍对温度的敏感性很强,温度变化直接引起生理、生态、生长速度和固氮能力的变化。从温度与生长速度关系(图一)看出,细绿萍比绿萍的生长适温低,一般在5℃并不停止生长,10℃生长率是0.071克/克、天,12—14天生长一倍;15℃生长加快,生长率是0.25克
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