Innovative increase of fertilizer efficiency and supply of aimed formof fertilizer by the most advanced application method.

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The invention of controlled availability fertilizer has made possibility of the contact application of fertilizer with seed or roots. In this method, we can directly supply the aimed form of fertilizer components to plants root without any intervention of soil, and thus increase fertilizer use efficiency in great extent, and improve both crop yield and quality. We could establish the innovative farming system such as no-tillage transplanting culture, no-tillage direct seeding culture, contact application of fertilizer in seed tape, stick fertilizer application in tea culture etc. without any decreases both in crop yield and quality, lowering the environmental loading from fertilizer.