| No-tillage effects on crop yield |
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| DOI：10.7606/j.issn.1000-7601.2011.02.16 |
| Key Words: no tillage conventional tillage crop yield implementation of extension |
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| Abstract: |
| Based on field investigation and fixed experimental observation from 2006~ 2007 in Beijing suburbs,
comparison between the no tillage and conventional tillage under crop growing and yield was made to analyse the problems during the implementation of no tillage extension. The results reveal that compared with those in conventional tillage， the emergence and maturity of crops in no tillage with mulching are later; and the number of plants can be 32% lower than conventional tillage during emergence and early seedling pulling of no tillage winter wheat; Compared with conventional tillage，biomass of notillage winter wheat can be about 3% lower, but the underground root is measured 15% higher over the same period. No tillage winter wheat can increase production by 2.2% in dry-spring years, but in rainy-spring years, production drops by 18.37%，and at most by 46.4%; Notillage increases corm production by 2%~18%. Pro-moting the implementation of no tllge also needs to streng hen scientific field management and increase govermment sup-port and advocacy efforts to ensure the stability of no-tillage grain production and sustained implementation. |