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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (19): 124-127.

所属专题： 生物技术； 水稻

• 农学 农业基础科学 • 上一篇    下一篇

免耕对水稻根系生长及根际环境的影响Ⅳ免耕栽培对水稻土壤酶活性的影响

周佳民 彭福元 刘开强 莫润秀 梁天峰 朱校奇 江立庚   

  • 收稿日期:2010-04-12 修回日期:2010-06-01 出版日期:2010-10-05 发布日期:2010-10-05
  • 基金资助:

    国家自然科学基金;教育部重点项目;广西科学基金

Influence of no Tillage on Root Growth and Rhizosphere Environment in RiceⅣ.Influence of no Tillage on Activities of Enzymes in Soil

  • Received:2010-04-12 Revised:2010-06-01 Online:2010-10-05 Published:2010-10-05

PDF (PC)

884

摘要：

以金优253为材料进行盆栽试验，研究了水稻在免耕、常耕、分根栽培三种栽培条件下水稻根际土壤和非根际土壤的蛋白酶、脲酶、淀粉酶活性的差异变化。结果表明：在根际土壤和非根际土壤中，常耕栽培稻田土壤蛋白酶、脲酶、淀粉酶活性高于免耕栽培。表明，常耕栽培稻田土壤物质降解与养分转化的能力好于免耕栽培稻田。

关键词: 林权, 林权, 抵押贷款, 融资, 模式, 存在问题

Abstract:

This paper is aimed to discuss the influence of no tillage on activities of enzymes in rice root rhizosphere. Pot experiments were conducted with Jinyou 253 as material to measure activities of amylase, urease and invertase in rice root rhizosphere and bulk soil under no tillage, conventional tillage and root separating cultivation. The results showed that activities of these enzymes in root rhizosphere and bulk soil under conventional tillage were higher than those under no tillage. It can be concluded that nutrient transformation in rice paddy under conventional tillage was better than that under no tillage.