| Effect of conservation tillages on moisture， fertility and yield in Weibei Highland |
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| DOI：10.7606/j.issn.1000-7601.2003.01.12 |
| Key Words: conservation tillage soil fertility soil water Weibe i Highland |
| Author Name | Affiliation | | FANG Ri-yao | College of Resources and Environment,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China | | TONG Yan-an | College of Resources and Environment,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China | | ZHAO Er-long | College of Resources and Environment,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China | | LING Dong-li | College of Resources and Environment,Northwest Sci-Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China |
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| Abstract: |
| A continuous experiment has been conducted in Heyang county in Weibei Highland with the conservation tillages of no till and chopped stalk mulch(Ⅰ) , no till and stalk mulch(Ⅱ), subsoil and chopped stalk mulch(Ⅲ), no till and standing stalk mulch(Ⅳ) and subsoil and standing stalk mulch (Ⅴ). The res ults showed that the conservation tillages had the remarkable advantages in cons er ving water, improving soil, and increasing production and income. No till and s t anding stalk mulch and subsoil and standing stalk mulch were most effective with the yield increment of 37.5% and 34.9% respectively compared to traditional til lages(ck). No till (or subsoil) and standing stalk mulch can save workdays and energy, and produce the comprehensive social, economic and ecological effects. T herefore, it is one of effective ways to solve the problem of "droughts and poo r fertility"of farming in arid and semi arid areas. |
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