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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (9): 326-330.

所属专题： 生物技术； 玉米

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

不同间作形式对玉米根际土壤酶活性的影响

姜莉,陈源泉,隋鹏,栾琛,张敏,汪洪焦,李媛媛,高旺盛   

  • 收稿日期:2009-12-11 修回日期:2009-12-24 出版日期:2010-05-05 发布日期:2010-05-05

The Rhizosphere Soil Enzyme Activities of Different Corn Intercropping System

Jiang Li, Chen Yuanquan, Sui Peng, Luan Chen, Zhang Min,   

  • Received:2009-12-11 Revised:2009-12-24 Online:2010-05-05 Published:2010-05-05

PDF (PC)

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摘要：

为了探究间作群体地下部土壤生物化学环境,采用田间试验法研究了不同间作群体玉米关键生育时期3种主要根际土壤酶活性的变化特征，结果表明:（1）随着玉米生育时期的推进，玉米单作、玉米‖向日葵、玉米‖花生、玉米‖红薯4个处理的根际土壤脲酶、过氧化氢酶、碱性磷酸酶均在喇叭口期出现活性高峰；（2）玉米整个生育期,各处理脲酶、过氧化氢酶活性大小顺序均表现为玉米‖花生＞玉米‖红薯＞玉米‖向日葵＞玉米单作，且在喇叭口期差异较显著（P＜0.05)。玉米‖花生碱性磷酸酶活性在整个玉米生长期一直高于玉米单作，玉米‖红薯除喇叭口期外均低于玉米单作、玉米‖向日葵在喇叭口期和开花授粉期也均低于玉米单作；（3）间作群体有明显的产量优势。

关键词: HPLC, HPLC, 拟除虫菊酯类杀虫剂, 蔬菜

Abstract:

In order to reveal soil biochemical environment of underground in Corn intecropping system, Using field experiment, the dynamic Changes in activities of three kinds of rhizosphere soil enzyme were assayed during different growth-stages of corn in different intercropping system. The results showed that,(1)As the development of the corn, the activities of rhizosphere urease, hydrodgen peroxidase and akline phosphatase peaked at bugle stage in the 4 treatments: single maize and maize intercropping with sunflower, peanut or sweet potato;(2) During the whole life of corn, the activities of urease, hydrodgen peroxidase in the 4 treatments showed:maize|| peanut>maize || sweet potato>maize ||sunflower>single maize, and the difference is significant (p<0.05)at bugle stage. The akline phosphatase activity in the maize || peanut is higher than that in the single maize with the growth of corn, Moreover, the maize|| sunflower showed the same regularity at seeding stage and maturity, but which in the maize||sweet potato is lower than in the single maize, except for bugle stage; (3)Intercropping system had significantly higher yield.