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在陕西省南郑县的烤烟连作旱地,以常规施肥为基础,增施适量硼、锌肥,研究硼、锌肥对烤烟生长发育和抗性等的影响。结果表明,当地连作烤烟地底施适量的硼、锌肥对烤烟生长有较好的促进作用,能够有效增加烟叶的长度、宽度,使烟叶茎秆粗壮、植株增高、长势清健,增强抗病性。施用锌肥较施用硼肥对烤烟生长的促进效果稍好,硼、锌肥配合使用促进效果更为显著。试验为南郑县旱地烤烟的硼、锌肥施肥技术研究与推广提供了参考。
In the continuous cropping of upland flue-cured tobacco in Nanzheng County of Shaanxi Province, based on the conventional fertilization, the appropriate amount of boron and zinc fertilizer was added to study the effects of boron and zinc fertilizers on the growth and resistance of flue-cured tobacco. The results showed that the suitable amount of boron and zinc fertilizers on the underground continuous cropping tobacco could promote the growth of flue-cured tobacco, increase the length and breadth of the tobacco leaves effectively, make the stalks of the tobacco leaves stout, increase the plant height, improve the health and enhance the disease resistance . The application of zinc fertilizer was better than that of boron fertilizer on the growth of flue-cured tobacco, and the combination effect of boron and zinc fertilizer was more significant. The experiment provided a reference for the research and popularization of boron and zinc fertilizers in dry land flue-cured tobacco in Nanzheng County.