NITRIFICATION INHIBITOR, AND SOIL CONDITIONER AND FERTILIZER CONTAINING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a nitrification inhibitor capable of being available in a wide region over the tropic zone and the temperate zone and of being easily produced from a naturally-occurring material; and a soil conditioner and fertilizer containing the same.

SOLUTION: This nitrification inhibitor contains Juglone as a main component and inhibits the nitrification of the soil. By incorporating this nitrification inhibitor in a soil conditioner or a fertilizer, the nitrification of the soil can be effectively inhibited. It is preferred when the nitrification inhibitor is contained in a soil conditioner or a fertilizer in a content ranging from 20 to 50% by weight.

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