关键词: 杂交水稻, 杂交水稻, 黑条矮缩病, 灰飞虱, 发生动态, 为害损失, 防治指标

Abstract: The field experiments were carried out at different organic matter content soils at Huaning county, the result showed that: In the soil of organic matter content less 2%, the rate of supper tobacco was raised notability and quality was ameliorated by applying cake fertilizer. If organic matter content greater than 2%,the rate of supper tobacco was not raised notability by applying cake fertilizer. At present, chemistry fertilizer was applied plenty, organic fertilizer can reform physics capability of soil, create satisfactory association texture, enhance soil microorganism activity; in the soil of organic matter content less 2%, 20~30kg/mu cake fertilizer can enhance yield、quality and the rate of supper tobacco. If the soil have high organic matter contents (≥2%), it should apply less or no cake fertilizer.