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KMID : 1041219840260010021
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Journal of Sericultural and Entomological Science
1984 Volume.26 No. 1 p.21 ~ p.24
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Studies on Glutamic Acid Fermentation Residue Fertilizer
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Abstract
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The survey and soil analysis were carried to research the problems on mulberry fields applied glutamic acid fermentation residue fertilizer (GAFRF). Mulberry farmers of 364 from 110 Si or Gun were chosen at random. The results were as follows;
1. Application rate of three elements applied on mulberry field was 25.8-12.8-16 in non·GAFRF using farmers, whereas 9.8-4.5-5.5kg/10a in GAFRF using farmers.
2. Application rate of organic matter applied on mulberry was 1155kg in non-GAFRF using farmers, whereas 329kg/10a in GAPRF using farmers.
3. Farmers of 53% using GAFRF did not applied three elements, 74% of them organic matter and 50% of them both of three elements and organic matter. These figures increased proportionally with application period of GAFRF.
4. The content of organic matter, availeble P2O5, K, Ca, Mg and pH in soil of appling GAFRF farmers was somewhat lower than in soil of non-appling GAFRF farmers.
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