摘要
研究了设施限根栽培中生长季节果树根温的变化和限根结合地面铺黑地膜对果树根温变化的影响。结果表明:1.设施内不同土层深度的根温变化有明显的峰值,分别在3月27日、5月4日和6月10日。不同土层深度的根温变化基本同步,但整个观测期内深24.6cm处的根温明显高于13.8cm处。2.限根结合地面铺黑地膜处理对生长季节果树根部温度调控作用明显。
Unfolding black plastic film above earth in growing season has been effective on improving the temperature in root system. The curve of seasonal variation of soil temperature （examined everyday at 9：00 forenoon and 15：00 afternoon） in different soil depths showed peaks in greenhouse. These peaks presented on 27th Mar, 4th May. and 10th Jun. respectively. The dynamic change of root temperature at different soil depths showed the same tendency. The root temperature at 24.6cm underground was significantly higher than thatat 13.8cm. It was obvious that the film covering and root confinement affect the root temperature.
出处
《上海农业学报》
CSCD
2005年第3期80-82,共3页
Acta Agriculturae Shanghai
基金
上海市科技兴农重点攻关项目"优质设施水果新品种选育及保优栽培研究"[编号:农科攻字2001(第1-4)]
关键词
限根
根温
黑地膜
温室
Root confinement
Root temperature
Black plastic film
Greenhouse
