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Countermeasures of Continuous Cropping Soybean on Slopping Land in Black Soil Regions of Northeast China(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2010年03期
Page:
474-478
Research Field:
Publishing date:

Info

Title:
Countermeasures of Continuous Cropping Soybean on Slopping Land in Black Soil Regions of Northeast China
Author(s):
LI Chun-jie;  LI Zhao-lin;  SONG Chun-yu;  ZHANG Xing-yi
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, Heilongjiang, China
Keywords:
Soybean; Continuous cropping; Sloping land; Countermeasure
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2010.03.0474
Abstract:
Continuous soybean cropping barrier has been studied for many years, present results showed that yield loss of continuous cropping soybean is reduced by proper agronomical management practices. In order to explore the effective countermeasures of controlling diseases and pests of continuous cropping soybean on sloping land in the black soil region in northeast China.The measures of organic fertilizer applied in autumn, phosphorus and potassium fertilizer increased by sowing in spring, seed pelleting, resistant cultivar selected and foliar fertilizer sprayed at growth late stage, were adopted by large plot areas in the field in 2009. The results showed that plant height, fresh weight and number of root nodules, dry and fresh weight of above and under ground of soybean by the countermeasures were significantly higher than continuous cropping control, root rot at seedling stage and diseases and pests of seeds at harvest were reduced, yeild was increased distinctly. Therefore, the effect of increased growth and development promoted, resistant diseases ability strengthened and yield of continuous cropping soybean increased under the adopted countermeasures.

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