不同施硼措施对云烟87生长和产质量的影响

Effects of Boron Application Methods on Growth,Leaf Yield and Quality of Yunyan 87(Nicotiana tabacum.L)

在大田条件下,研究了不同施硼措施对烤烟生长及产质量的影响,结果表明:与基施(P0)或不施硼肥(CK)处理相比,叶面喷施对促进烤烟生长,增加烟叶产量,提高烟叶质量有更显著的作用,且叶面整株喷硼(P4)的烟株其产值分别比基施硼肥,喷施上部叶(P1)、喷施中部叶(P2)、喷施下部叶处理(P3)高12.4%、56.1%、37.3%、48.1%。叶面喷硼处理对中部叶糖含量、钾含量以及烟碱含量的调控有积极的作用,整株叶面喷施硼肥处理的烟叶烟碱含量明显低于其他处理。

A field experiment was conducted to study the effects of boron （B） application methods on the growth, leaf yield and quality of flue-cured tobacco, the results indicated that, compared to the treatments of applying boron（B） to tobacco plants basically or no B fertilizer application, the tobacco plants applied B by foliage dressing had higher growth potential, and produced much more tobacco leaf and better leaf quality. The tobacco plants foliar sprayed B whole plants gave much more output, and higher 12.4%. 56.1%. 37.3%,48.1% than that of foliar sprayed on the central leaves, upper leaves or lower leaves. Foliar spraying B promoted potassium uptake by plants, transforming from slowly available potassium to available potassium, and had a positive effects on adjusting and controlling the total sugar, potassium accumulation and nicotine in cutters.