Microbiological characteristics of sand dune fields, 1: Soil enzymes
1990
Kanazawa, S. (Tokyo Univ. (Japan). Faculty of Agriculture) | Matsumoto, S.
In order to clarify the microbiological characteristics of sand dune fields, the authors investigated the effect of management practices on soil enzymes participating in carbon and nitrogen metabolism in the experimental fields (soybean, alfalfa, yam, sweet-potato and grape plots) of the Sand Dune Research Institute of Tottori University. The results obtained are summarized as follows: 1) Enzyme (beta-glucosidase, beta-xylosidase, phosphomonoesterase and phosphodiesterase) activities and soil organic matter content increased remarkably in all the plots of the experimental fields in response to long-term management practices. However, the extent of this increase differed according to the plant species. Soil organic matter content, and beta-glucosidase, beta-xylosidase and phosphomonoesterase activities increased in order as follows: alfalfa grape soybean sweet-potato yam, while phosphodiesterase activity was alfalfa sweet-potato soybean grape yam. 2) Comparing beta-glucosidase activity to beta-xylosidase activity of soil enzymes participating in carbon metabolism, beta-glucosidase activity was higher than beta-xylosidase activity, and the ratio of beta-glucosidase activity to beta-xylosidase activity did not differ according to the plant species
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