不同有机质土壤饼肥用量对烤烟产量和质量的影响

通过在华宁县不同有机质含量土壤上饼肥用量试验，结果表明：土壤有机质含量在2%以下的植烟土壤，通过增施有机饼肥，能明显的提高上等烟的比例，改善烟叶的品质。土壤有机质含量在2%以上，增施饼肥对上等烟的比例没有明显影响。试验结果还表明：在目前大量施用化肥的条件下，有机肥能改良土壤的物理性能，创造良好的团粒结构，增加土壤微生物的活力；土壤有机质含量在2%以下的植烟土壤施有机饼肥300~450kg/hm2能提高烟叶的产值和上等烟的比例。在有机质含量大于4%的土壤上以不施或者饼肥为宜。

Effects of Different Cake Fertilizer Amount on Yield and Quality of Flue-cured Tobacco on Soil of Different Organic Matter Contents

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.