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In order to improve the the of Chenzhou tobacco production and quality, the the experimental soil of Mg, B, Mn, Mo low levels in the administration of Chenzhou tobacco special fertilizer based on Mg, B, Mn, Mo fertilizer and the use of four fertilizer were added 10 different combinations of treatment of tobacco agronomic traits, yield, quality, production value and tobacco chemical composition. The study results show that: 1. The Chenzhou smoke District, most of the soil nutrients in a suitable range, but of Chenzhou smoke soil generally lack of Mg, B; lack Mn 20% of the soil; 32.18% of soil missing Mo; in tobacco leaf fertilization process pay attention to control N complement K, Mg, B, fertilizer, some of the tobacco-growing areas complement Mn, Mo fertilizer. Single application of trace elements in fertilizer test results show that, under the experimental conditions, respectively Enrichment of the appropriate Mg, B, Mn, Mo fertilizer, can improve the growing of tobacco plant looks of tobacco agronomic traits (plant height, stem girth has improved to varying degrees, the effective number of leaves, leaf size), tobacco production, output value, single leaf weight was significantly increased, the price and the upper-middle-tobacco ratio also increased on tobacco production, and the superior tobacco rate, the average price of indicators significantly improved; increase the nutrient content of tobacco leaves in varying degrees, total sugar, protein, nicotine, total nitrogen, the main chemical ingredients and shmuck value, intrinsic quality conditions in sugar to nicotine ratio, ratio of nitrogen base both tend to the requirements of high-quality tobacco leaf, tobacco leaf intrinsic quality can be significantly improved. Diluted 1,000-fold per acre enriching Houdy B \6.55kg, the output value of 172.77 yuan, 6.3% of upper-middle-tobacco ratio; the facilities of Mg, B, Mn, Mo fat in moderation, insufficient or excessive will cause the yield, quality and output fell. Compared with the effect of fertilizer trace elements fertilizer test results show that under the experimental conditions, the different levels of trace elements in combined application can improve the growing of tobacco plant looks than single application the the corresponding Mg, B, Mn, Mo fertilizer good, and with the application of different types of trace elements in the more improved tobacco plant looks Growth of the better of tobacco agronomic traits (plant height, stem girth, the effective number of leaves, leaf size) has improved to varying degrees, tobacco production increase in output, single leaf weight increased significantly, average and upper-middle-tobacco ratio increased, there has been a marked improvement on tobacco production, and the superior tobacco rate, the average price of indicators; corresponding tobacco leaves nutrient content in varying degrees total sugar, protein, nicotine, total nitrogen, and other major chemical ingredients and shmuck value ratio of sugar to nicotine, nitrogen base than the intrinsic quality conditions tend to the requirements of high-quality tobacco leaf, tobacco leaf intrinsic quality can be significantly improved. B \2686.58 yuan, upper-middle-tobacco ratio of 94.9%, and increase the yield of 26.17kg than the control value of 494.8 yuan, 8.1% of the proportion of medium smoke.
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