We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effects of straw returning on the integrated soil fertility and crop yield in southern China.
- Authors
YANG Fan; DONG Yan; XU Ming-gang; BAO Yao-xian
- Abstract
Based on the data from 94 experiments of straw returning in Anhui, Jiangxi, Hunan, Hubei, Guangxi, Sichuan, and Chongqing, and by using mathematic modeling approach, this paper evaluated the effects of straw returning on the soil fertility and crop yield in southern China. Obvious regional differences were observed in the soil fertility index (SFI) and crop yield response. In study area, the croplands with the SFI of Grade III and Grade IV were predominant, occupying 69.1% and 21. 3% of the total, respectively. Averagely, straw returning increased the SFI and crop yield by 6. 8% and 4. 4%, respectively, as compared with the control (no straw returning). The SFI was significantly linearly correlated with rice yield, and could well reflect the integrated soil fertility in study area. At present, straw returning with decomposing agent added is one of the most important measures to improve the integrated soil fertility in southern China, which should be widely popularized.
- Subjects
CHINA; SOIL fertility; CROP yields; CROP nutrition; AGRICULTURAL productivity; FARMS
- Publication
Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao, 2012, Vol 23, Issue 11, p3040
- ISSN
1001-9332
- Publication type
Article