| Effect of organic management on soil fertility and wheat production in Minqin oasis |
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| DOI：10.7606/j.issn.1000-7601.2012.04.14 |
| Key Words: organic management soil microbes soil enzyme activity wheat product quality downstream area of the Shiyang River |
| Author Name | Affiliation | | ZHAO Na | College of Resource and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | DAI Chunyan | College of Resource and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | HAN Guojun | College of Resource and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | FANG Chunyuan | College of Resource and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | CHEN Nianlai | College of Resource and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZHANG Zheng | College of Resource and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | HUANG Haixia | College of Resource and Environmental Sciences, Gansu Agricultural University, Lanzhou, Gansu 730070, China |
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| Abstract: |
| By measuring wheat yield, quality and soil nutrients, microbial activity, microorganism quantity in fields with different years of organic management, study was conducted on effect of organic management on soil
quality and wheat production in downstream area of the Shiyang River. The results show that continuous organic management can greatly improve the content soil organic matter, rapidly-available phosphorus and rapidly-available potassium, enhance soil alkaline phosphatase activity, and increase significantly the quantity of soil bacteria and actinomycetes. Compared with that with traditional management, the farmland with three years of organic management has higher content of soil organic matter, available nitrogen, available phosphorus and available potassium, which are increased respectively by 49.70%, 28.63%, 190.08% and 122.89%. Three-year consecutive organic management increases the grain protein content by 20.98%, lysine content by 41.86%, and yield by 7.25%. The organic management improves soil fertility and stability of wheat yield, and enhances significantly nutritional quality. |
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