Studies On Substitution In Matrix In Floating System Of Flue-cured Tobacco In Fengjie, Chongqing

Matrix substitution in the floating system of flue-cured tobacco were studied in Fengjie county, Chongqing in 2008-2009, taking Yunyan87 coated seeds as material, and using matrix, commericial medium and fertilizers which produced in Hunan Xianghui floating system materials factory. The results are as follows:1 Study on the application of carbonized tobacco stalks in matrix substitution in the floating system of flue-cured TobaccoCommodity matrix in different proportions of carbon mixed with tobacco stems dubbed the new floating Substrates study the propagation effects, the results show that the tobacco stems and commodity matrix carbonation ratio≤2:8 mixture of mixed breed of Tobacco matrix synthesis good character, and nursery products matrix effect, then the substitution of goods Tobacco Seedling in the feasibility of a certain matrix.2 Study on application of carbonized corn stalk in matrix substitution in the floating system of flue-cured TobaccoCommodity matrix in different proportions of carbon mixed with corn stalks dubbed the new carbon in floating substrate to study the propagation effects, the results show that the tobacco stems and commodity matrix carbonation ratio≤2:8 mixture of mixed matrix breed of Tobacco better comprehensive properties, and nursery products matrix effect, then in tobacco seedlings in the floating replace the feasibility of certain matrix products.3 Study on application of river sand in matrix substitution in the floating system of flue-cured TobaccoProduct matrix in the Yangtze river sand mixed with different proportions of new floating Substrates paired study the propagation effects, the results show that the Yangtze river sand mixed with the product matrix of the mixed ratio of≤1:9 integrated matrix breed of Tobacco good character, and nursery products matrix effect, then the substitution of goods Tobacco Seedling in the feasibility of a certain matrix.4 Study on application of carbonized corn stalk and river sand in matrix substitution in the floating system of flue-cured TobaccoCarbonized corn straw and river sand to the material, completely replace the product comparison matrix for propagation test results show that this method results in the nursery with the product matrix has a gap, of which 20% sand +80% carbonized corn straw formulations and products matrix effect is closer, can serve as a reasonable alternative formulation matrix choice.