摘要： 研究了不同灌水量和覆盖物对温室有机土基质栽培条件下甜椒生长发育和产量的影响,分析了其对土壤地温、含氧量以及植物光合速率和叶绿素含量的影响。结果表明:不同覆盖物对地温和土壤含氧量有不同程度的影响,地膜覆盖增温效果明显,秸秆覆盖效果最差,土壤含氧量在不同灌水量处理中表现出了明显的差异,随着土壤含水量的增加含氧量越来越低;不同覆盖物处理间,覆盖秸秆处理的土壤含氧量较其他处理高5%~10%,其次是覆盖草坪草处理,覆盖地膜的含氧量最低。叶绿素含量和光合速率均以中水量最好,覆盖秸秆和草坪草处理间的差异不显著,最终甜椒产量亦以中水量处理要高于低水量和高水量,以中水量且覆盖草坪草处理的表现最好,显著高于其他处理。

关键词: 甜椒, 灌水量, 覆盖物, 生理机制, 温室

Abstract: "The effects of different irrigation quantity and mulches on the growth and yield of sweet pepper with organic soil substrate in greenhouse were studied.The soil temperature and oxygen content in soil were compared.The photosynthetic rate and chlorophyll content of leaves were analyzed.The results showed that the substrate temperature and oxygen content in soil were changed with different mulches;soil temperature in film mulch was much higher than that in straw mulch.The oxygen content was negative correlated with the water irrigation.The oxygen content in straw mulch was much higher than others.The photosynthesis of sweet pepper cultivated surface covering with green grass was higher than any other treatments.The yield of sweet pepper with middle irrigation quantity was higher than low and high irrigation quantity.The fruit yield of sweet pepper cultivated soil covering with green grass was the best treatments. "

Key words: Sweet pepper, Irrigation quantity, Mulches, Physiolog icalmechanism, Greenhouse

中图分类号: 

• S641.3

• S626