[1]YAN Hong-liang,WANG Sheng-nan,ZOU Hong-tao,et al.Effects of Two Years of Stalk Deeply Returned to the Field on Soil Microaggregates and Soil Organic Matter and pH Value after in Semiarid Region of the Northeastern China[J].Research of Soil and Water Conservation,2013,20(04):44-48.
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Effects of Two Years of Stalk Deeply Returned to the Field on Soil Microaggregates and Soil Organic Matter and pH Value after in Semiarid Region of the Northeastern China
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 04
Page number:
44-48
Column:
Public date:
2013-08-28
- Title:
- Effects of Two Years of Stalk Deeply Returned to the Field on Soil Microaggregates and Soil Organic Matter and pH Value after in Semiarid Region of the Northeastern China
- CLC:
- S153
- DOI:
- -
- Abstract:
- A field experiment was conducted. Soil microaggregate and mechanical property was separated by pipette and sieve analysis, and soil organic matter, pH and soil micro-aggregate were measured. The effects of stalk deeply returned to the field after two years on oil organic matter, pH and soil microaggregate in semiarid region of the northeastern China. The Results indicate that stalk deeply returned to the field decreased the soil of pH. As the depth of soil layers increased, pH value increased gradually. The amount of soil organic matter and soil microaggregate degree were higher than the CK and DT treatments of stalk deeply returned to the field 3.4%～32.7% and 16.4%～53.7%, respectively. Dispersion coefficient of soil was lower than the CK and DT treatments, 12 000 kg/ha treatment of stalk deeply returned to the field was the most significant. In summary, after two years of stalk deeply returned to the field could improve the amount of soil organic matter, decrease the soil of pH, improve the characteristics of particle composition of soil, positive effects on soil microaggregation degree.
- References:
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1900-01-01