| 免耕与秸秆高留茬还田对抛秧稻田土壤酶活性的影响 |
| |
| 作者姓名： | Ren WJ Huang Y Wu JX Liu DY Yang WY |
| |
| 作者单位： | 1. 四川农业大学农学院,四川温江,611130
2. 四川省农业技术推广总站,成都,610041 |
| |
| 基金项目： | 国家粮食丰产科技工程项目(2006BAD02A05,2011BAD16B05); 农业部行业科技项目(200803028,201103001)资助 |
| |
| 摘 要： | 利用大田试验,研究了免耕+秸秆还田、免耕、常耕+秸秆还田、常耕4种耕作方式对稻田土壤剖面不同层次土壤酶活性的影响.结果表明:4种耕作方式的酶活性在土壤剖面上表现为上层高于下层,其中免耕+秸秆处理上、下土层间的差异大于其他处理.上层土壤的脲酶、酸性磷酸酶、蛋白酶和纤维素酶活性为免耕处理大干常耕处理,有秸秆还田处理大干无秸秆还田处理,以免耕+秸秆处理最高,常耕处理最低;下层土壤4种酶活性以常耕+秸秆处理最高,免耕+秸秆处理次之,免耕和常耕处理较低.水稻不同生育时期,脲酶和纤维素酶活性在分蘖期较低,增加至孕穗期达到峰值,至成熟时又降至低值;酸性磷酸酶活性以分蘖期较高,拔节期较低;蛋白酶活性在分蘖期和抽穗期分别出现峰值.
|
| 关 键 词： | 免耕 留茬 土壤酶 水稻 |
Effects of no-tillage and stubble-remaining on soil enzyme activities in broadcasting rice seedlings paddy field |
| |
| Ren WJ,Huang Y,Wu JX,Liu DY,Yang WY.Effects of no-tillage and stubble-remaining on soil enzyme activities in broadcasting rice seedlings paddy field[J].Chinese Journal of Applied Ecology,2011,22(11):2913-2918. |
| |
| Authors: | Ren Wan-Jun Huang Yun Wu Jin-Xiu Liu Dai-Yin Yang Wen-Yu |
| |
| Institution: | REN Wan-jun1,HUANG Yun1,WU Jin-xiu1,LIU Dai-yin2,YANG Wen-yu1(1College of Agronomy,Sichuan Agricultural University,Wenjiang 611130,Sichuan,China,2Sichuan General Popularization Centre of Agricultural Technique,Chengdu 610041,China) |
| |
| Abstract: | A field experiment was conducted to study the effects of four cultivation modes(conventional tillage,no-tillage,conventional tillage + stubble-remaining,and no-tillage + stubble-remaining) on the activities of urease,acid phosphatase,protease,and cellulose in different soil layers in a broadcasting rice seedlings paddy field.Under the four cultivation modes,the activities of test enzymes were higher in upper than in deeper soil layers,and had a greater difference between the soil layers under no-tillage + s... |
| |
| Keywords: | no-tillage stubble-remaining soil enzyme Oryza sativa L |
| 本文献已被 CNKI 万方数据 PubMed 等数据库收录！ |
|
