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Journal of Agronomy
  Year: 2008 | Volume: 7 | Issue: 1 | Page No.: 56-62
DOI: 10.3923/ja.2008.56.62
 
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Effects of Cropping Systems on Selected Soil Structural Properties and Crop Yields in the Lam phra phloeng Watershed-Northeast Thailand

Mohammad G. Azam, Micheal A. Zoebisch and Kanchana S. Wickramarachchi

Abstract:
We conducted this study in Northeast Thailand (UTM coordinates 0795295, 1601006) to identify the degree of influence of four popular cropping systems (maize-maize, mungbean-maize, cassava and maize-fallow) and two of their relevant husbandry practices (residue management and tillage direction) on the deterioration of selected soil structural properties and the ultimate effect on crop yields. A number of soil structural properties were measured in both top and sub soil. The status of selected properties was evaluated under each of the cropping systems as well as husbandry practices through in situ and laboratory soil assessments. Mungbean-maize and cassava systems were found to be superior to maize-fallow and maize-maize systems in structural quality of the topsoils. Mungbean-maize system reported to have the highest value for soil organic matter. Residue management and tillage direction significantly affected only root density and soil shrinkage respectively. None of selected subsoil structural properties were significantly influenced by any of the cropping systems. Mungbean-maize and maize-fallow systems have significantly higher average and second crop yields over the maize-maize system.
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How to cite this article:

Mohammad G. Azam, Micheal A. Zoebisch and Kanchana S. Wickramarachchi, 2008. Effects of Cropping Systems on Selected Soil Structural Properties and Crop Yields in the Lam phra phloeng Watershed-Northeast Thailand. Journal of Agronomy, 7: 56-62.

DOI: 10.3923/ja.2008.56.62

URL: https://scialert.net/abstract/?doi=ja.2008.56.62

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