稲作における汚泥コンポスト施用と密植効果との関係

概要

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[Synopsis] In the field experiment, the relation between sludge compost application and dense planting effects was investigated on the rice cropping. When 1000g/m2 of the compost application was added, it increase about 60g/m2 of rice grain yield. This in turn will suggest that the compost applicationincrease gave rise to produce rice yield increase. The grain yield increase was occurred significantly from density effect on the compost application. It was large effect on yield that tiller number was held for early growing process. The compost had controlled release nitrogen. Despite planting density, thischaracteristic make grain protein relatively low and eating quality of rice desirable.