Study Finds No-till Agriculture May Not Bring Hoped-for Boost in Global Crop Yields
October 29, 2014| |
A new and extensive meta-analysis conducted by an international team led by the University of California, Davis revealed that no-till farming, a key conservation agriculture strategy that avoids conventional plowing, may not bring a hoped-for boost in global crop yields.
No-till is promoted worldwide, in an effort to sustainably meet global food demands. But after examining results from 610 peer-reviewed studies and assessing more than 5,000 side-by-side observations, the research team found that no-till often leads to yield declines, compared to conventional tillage systems.
The team observed that all three conservation agriculture principles must be practiced, as part of an integrated management system rather than no-till alone. However, when adopted in dry climates in combination with the other two principles of conservation agriculture, no-till farming performed significantly better than conventional tillage.
For more details, read the news release at: http://news.ucdavis.edu/search/news_detail.lasso?id=11062.
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