Effects of Conservation Tillage on Crop Yield： a Case Study in the Part of Typical Ecological Zones in China

• Published in: Agricultural sciences in China Vol. 10; no. 6; pp. 860 - 866
• Main Authors: TANG, Qiu-xiang, LI, Shao-kun, XIE, Rui-zhi, ZHANG, Jian-xin, REN, Tian-zhi, LIN, Tao, GAO, Shi-ju
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.06.2011; Institute of Agricultural Resources and Regionalization, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China%Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China%Xinjiang University of Agriculture, Urumqi 830052, P.R. China%Institute of Agricultural Resources and Regionalization, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China%Xinjiang Academy of Agricultural Sciences, Urumqi 830043, P.R. China; Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R. China
• Subjects: case studies; China; conservation tillage mode; corn; corn straw; crop yield; crops; ecoregions; farmer recognition; fuzzy mathematics; households; mulching; no-tillage; oases; peasantry; planting; rice straw; sowing; stubble; wheat; wheat straw; yield effect; 东北平原; 中国西北; 作物产量; 保护性耕作; 免耕播种; 华北平原; 案例; 生态区域; China; farmer recognition; fuzzy mathematics; conservation tillage mode; yield effect
• ISSN: 1671-2927
• DOI: 10.1016/S1671-2927(11)60072-2

To evaluate the effects of different conservation tillage modes on crop yield in various ecological regions, we interviewed peasant households in the Northeast China Plain, North China Plain, Chengdu Plain, and Northwest China Oasis, China, to analyze the influencing factors of the tillage methods on crop yield. An index set was determined from seven yield parameters based on expert consultation and relevant literature. A comprehensive evaluation of conservation tillage methods in the various ecological regions was carried out using fuzzy theory. The approaches with the highest scores were identified for each region: wide and narrow rotation planting with high stubble standing retention in the Northeast China Plain; seeding after rotary tilled of wheat under corn straw mulching and no-tillage seeding of corn and other crops under wheat straw mulching in the North China Plain; no tillage with high stubble retention in the Northwest China Oasis; and no-tillage seeding of wheat and other crops under rice straw mulching in Chengdu Plain. These research data provide a useful guide for the selection of conservation tillage methods for optimum yields in different regions of China.