실소시비량 및 재식거리간 벼 흰빛잎마름병 발병과 관계를 조사한 결과는 다음과 같았다. 1. 질소시비량과 발병과는 시비량의 증가에 따라 발병율이 많아지는 경향을 나타냈으며, 7.5kg/10a<15kg/10a<30kg/10a의 순으로 발병이 높았다. 2. 질소시비량이 배비(30kg/10a)일 경우에는 재식거리와는 관계없이 전체적으로 높은 발병율을 나타내었다. 3. 표준시비구(15kg/10a)에서는 (표준재식거리)에서 발병도에 큰 차이를 볼 수 없었으나, 재식거리가 넓은 구에서 발병이 높았다.

In order to investigate the relationship among the occurrence of bacterial leaf blight, amount of nitrogen application and planting density, a field experiment was carried out with factorial combinations of N levels (7.5, 15, 30kg/10a) and planting densities (10\times20,\, 15\times30,\, 20\times40cm). The results obtained in this study were, (1) The incidence of bacterial leaf blight was increased with increase of nitrogen application, (2) In double amount of nitrogen application (30kg/10a), the incidence of bacterial leaf blight was higher, regardless of planting density, (3) The incidence of bacterial leaf blight in Standard nitrogen application was significantly higher than at density and planting density.

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