초록

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Abstract ▼ AI-Helper

In order to use the glutamic acid fermentation residuum in agriculture effectively, comparison experiments of the residua liquid and dried solid, and compost on radish (Raphanus Sativus) and chinese cabbage (Brassica chinesis) were carried out, together with an investigation on some physical propert...

In order to use the glutamic acid fermentation residuum in agriculture effectively, comparison experiments of the residua liquid and dried solid, and compost on radish (Raphanus Sativus) and chinese cabbage (Brassica chinesis) were carried out, together with an investigation on some physical property changes of soil brought about by the use of the residua and compost. 1. An equal or somewhat superior effect of the glutamic acid fermentation residua solid and liquid, to urea was observed. 2. Both residua liquid and dried solid, tended to acidify soil and the tendency was observed to be somewhat servere in the latter. 3. The liquid fermentation residuum compounded with minor elements such as iron, manganese, zinc, copper and boron increased the yield of chinese cabbage compared with the liquid residuum alone. 4. Not only as a N, K fertilizer, the liquid residuum of glutamic acid fermentation could also be used as a source for liquid or solid compound fertilizer.