| Effect of the capsicum and maize intercropping on soil microbe number soil enzyme activity and soil nutrient content at the capsicum |
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| DOI：10.7606/j.issn.1000-7601.2007.03.20 |
| Key Words: capsicum root soil microbe soil enzyme soil nutrient |
| Author Name | Affiliation | | XU Qiang | College of Horticulture Northwest A＆F University,Yangling,Shaanxi 712100,China | | CHENG Zhi-hui | College of Horticulture Northwest A＆F University,Yangling,Shaanxi 712100,China | | MENG Huan-wen | College of Horticulture Northwest A＆F University,Yangling,Shaanxi 712100,China | | ZHANG Yu | College of Horticulture Northwest A＆F University,Yangling,Shaanxi 712100,China |
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| Abstract: |
| The effects of different culture patterns,i.e.capsicum monoculture and intercropping,different interspecific root partition treatments,i.e.partition with nylon mesh(MCRM),partition with plastic sheet(MCRP),without partition(MCRN),on soil microbe number,soil enzyme activity and soil nutrient content in the capsicum rhizosphere and non-rhizosphere zones were investigated.The results showed that: soil microbe number and soil enzyme activity of intercropped capsicum rhizosphere and non-rhizosphere zones is higher than that of the monoculture capsicum.Compared with MCRP treatment,the microbe number and enzyme activity of capsicum rhizosphere and non-rhizosphere soil increased in MCRN and MCRM treatments, and the soil microbe number and enzyme activity in MCRM were the highest one.The content of organic matters,available phosphor,available potassium and alkali-hydrolyzable nitrogen in the capsicum rhizosphere soil was less than those of capsicum non-rhizosphere.The soil nutrient content in MCRM was highest one as a result of nylon mesh slowed down the nutrient directly competition of maize root to capsicum root and maize root exudate and rhizospheric effects at the same time.Soil important mircobe group number was main factor influencing soil enzyme activity;besides there was an extremely significant correlation between them.The content of organic matter and alkali-hydrolyzable nitrogen were also extremely significant correlation with soil microbe number and enzyme activity,available phosphor content was positive correlation with soil microbe number and enzyme activity.Soil fungi number and urease activity were negative correlation with soil available potassium content. |
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