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氮素是对烤烟生长发育影响最大的元素之一。氮肥种类和形态对烤烟产量和质量都会产生不同的影响。国外烤烟施肥以无机肥和硝态氮肥为主,烟叶质量较好。为了探讨优质烟叶的合理施肥技术,于1986～1989年在贵州省遵义烟区进行了烤烟氮肥种类(品种)和形态的研究。一、试验设计及基本情况(一)田间设计随机区组排列,重复3次,小区面积40m~2,种植密度100cm×60cm,留叶18～22片。(二)试验内容1、氮肥品种试验:试验设5个处理(表1)。
Nitrogen is one of the most important elements of the growth and development of flue-cured tobacco. The types and forms of nitrogen fertilizer have different effects on the yield and quality of flue-cured tobacco. Foreign flue-cured tobacco to inorganic fertilizers and nitrate nitrogen-based, better quality tobacco. In order to explore the reasonable fertilization technology of high-quality tobacco leaves, the types of nitrogen fertilizer (varieties) and the morphology of flue-cured tobacco were studied in Zunyi tobacco-growing areas of Guizhou Province from 1986 to 1989. First, the experimental design and the basic situation (A) field design Randomized block arrangement, repeated three times, the plot area of 40m ~ 2, planting density of 100cm × 60cm, leaves 18 to 22 pieces. (B) Test Content 1, nitrogen fertilizer varieties test: test set up five treatments (Table 1).