The Modified Effect Of Several Soil Amendments And The Influence On The Yield And Quality Of Flue-cured Tobacco

In this paper, based on the achievement and deficiencies of former scholars in the world, aiming at inproving the problems such as the soil harden and nutrient unbalance in tobacco growing areas in Anshun, Guizhou Province, we carried out studies on the technologies to in prove the soil quality in tobacco rowing areas in Anshun, Guizhou Province, and we also wa-nt to provide the scientific basis on amelioration and reclamation of the soil. Test selection of four kinds of soil amendments, divided into two groups to test comparative analysis of gro-up1set polyacrylamide (treatment A), Water retention agent (treatment B), β-cyclodextrin (treatment C), by applying conventional fertilizer (CK1) as control; group2Let aerobic fer-mentation of manure+EM fungi polyacrylamide (treatment D), EM bacteria aerobic ferme-ntation of manure+Waterford aquasorb (treatment E) and EM fungi+β-cyclodextrin (tre-atment F), with application of EM bacteria aerobic fermentation of manure (CK2) as a contr ol, a field experiment to explore the different soil amendments and their combinations on to-bacco soil physical properties, chemical properties of improving the results, as well as to-bacco products quality. The results showed that:1. the application of soil amendments can improve soil physical properties. Apart from handling C in the popular long-term deal with E in the extension root of soil moisture with the respective control was not significantly different, the rest of the treatment period in the growth and development of flue-cured tobacco soil water content were significantly or very significantly higher than their respective controls; each treatment group1soil bulk density were significantly or very significantly lower than the control, group2tobacco root elonga-tion period. the rosette stage, squaring period no significant difference between the treat-ment and control, there are significant differences in the remaining period; treatment A and treatment with the respective soil porosity D were significant compared to the control level. Comprehensive analysis. polyacrylamide (PAM) and β-cyclodextrin to improve soil physi-cal properties best.2. the application of soil amendments can improve soil chemical properties. Each treat-ment were able to significantly increase soil nitrogen, nitrogen, phosphorus. potassium and organic matter content, which deal with the most significant effect F.3. the application of soil amendments can improve tobacco agronomic traits. Each trea-tment were able to significantly increase the tobacco Zhu Zhu height, stem circumference, maximum leaf length, leaf width and leave the maximum number of leaves, which deal with D, E effect is most significant, the difference is obvious.4. the application of soil amendments to increase tobacco production. Compared with the control, the treatment can significantly improve the average weight per leaf tobacco, which deal with D single leaf weight and the total output reached the maximum, followed by treatment E.5. the application of soil amendments can improve the appearance of cured leaf quality. Each treatment can improve the appearance quality of tobacco leaves, which deal with D, E Cured Tobacco Appearance Quality scores were69.4,67.66, respectively, compared with CK2increased1.93,0.19points more than CK1increase6.82,5.08points.6. Soil amendments can also coordinate the chemical composition in cured tobaco leaf. The nicotine, nitrogen, sugar, potassium, protein, and other chemical components become more coordination after treatment with soil amendments. What’s more, soil amendments ob-viously affected the chemical composition of the upper leaf, and the treatment was D best, treatment F second.