氮、钾肥类型对烟草产量及吸钾量差异的研究
Southwest China Journal of Agricultural Sciences（2008）
Abstract
通过盆栽试验,研究了不同氮、钾肥品种及其用量对烟草(Nicotiana tabacum)产量、植株含钾量及吸钾量的影响.结果表明.硝态氮肥与KNO3配施能显著提高烟草产量及含钾量,促进钾的吸收.在不考虑营养元素平衡的情况下,过多增施钾肥对提高产量及合钾量的作用不大;烟草需钾量是随着其它营养改善而有所提高.烟草的吸钾量与土壤有效钾含量呈曼著正相关(r=0.720s),说明高的土壤钾素肥力可能对生产高质量烟叶具有重要作用.
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Key words
nitrogen fertilizer,potassium fertilizer,tobacco,interaction,soil fertility,potassium,crop yield,nitrogen
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