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As people on the development and utilization of agricultural and forestry waste and industrial seedling development, agricultural and forestry waste for organic substrates has become a research focus. Agricultural and forestry waste is a good soilless substrate materials, but contains more harmful substances and unstable performance, need to be treated after fermentation substrate used as a nursery, nursery direct impact on the effect of the maturity effect. Seedling growth matrix is ??the foundation and key, is to determine its physical and chemical properties of the most important quality of seedling growth factors, and nursery substrate particle size and the ratio of direct impact on the matrix porosity and chemical properties of stability, which is very important physicochemical parameters. Eucalyptus as one of the world's three fast-growing species, which produce large amounts of time in the use of wood bark wastes. Therefore, the study of waste paper for eucalyptus seedling substrates, analyze its maturity effects, particle size and the physical and chemical properties of stability and nursery effect on the environment, the deployment nursery substrate and substrate quality control of industrial production has important application significance. This study is based on eucalyptus leather as raw material, through the eucalyptus skin matrix decomposition techniques, different size and proportions of eucalyptus Picchi qualitative changes in physical and chemical properties and nursery seedling growth substrates for studying the impact of the quality of the following results: (1 ) at high temperature aerobic composting, adding urea treatment temperature and low temperature heat slowly, adding manures handling heating up fast and high temperature. Composting process, the quality of the physical and chemical properties of eucalyptus basal get different degrees of improvement. Eucalyptus skin after maturity each treatment slightly increased density, total porosity and pore size ratio decreases, performance has improved water holding; pH value increases, EC value and CEC value decreases, C / N ratio decreases, more matrix performance stability. (2) the maturity of different treatments on the effects of eucalyptus differences in skin, where manure VT -1 000 agents, enzymes manure fertilizer and manure processing enzyme agents after maturity of the physical and chemical indicators matrix approach or reach the desired requirements. The comprehensive evaluation of that, add chicken processing enzyme agents decomposition of Eucalyptus best leather, leather is more suitable for eucalyptus composting; urea VT -1 000 agents of the effect of treatment on the maturity of the most poor. Considering the combined cost of chicken manure composting eucalyptus most suitable nitrogen skin, enzymes, bacteria can be used as appropriate to add agents. (3) in the breeding process, eucalyptus skin of matrix density in 0.1 ~ 0.3 g.ml -1 of changes in the scope, the total porosity of 65 to 90% rise, gas-water ratio in fluctuated between 0.05 to 0.40, a wide variation, aeration water holding capacity in the nursery to get some improvement. With the nursery progresses, changes in the chemical nature of the matrix is ??obvious. the pH, EC values ??decreased gradually in the nursery, CEC value increases, C / N ratio of small changes, nutrients (N, P, K) content and change to meet the needs of growing seedlings. (4) the chemical nature of the matrix and the impact of nutrients on seedling is greater than the physical properties, EC values, CEC value, pH value, C / N ratio, total phosphorus and potassium are the main factors in Nursery. (5) the particle size of less than 0.2cm eucalyptus skin and 0.2 ~ 0.5cm and the proportion was 50% and 25% of the matrix, nursery small changes in the physical and chemical properties, stable performance, the overall growth of good quality seedlings, nursery effect ideal. Among them, the quality of seedling growth substrate 3 is the best of all matrices, matrix 4 and 7, seedling growth matrix worst quality. Taken together, eucalyptus should not be greater than the diameter of the skin nursery 0.5cm, when the content ratio should not exceed 50%. (6) the quality and seedlings of Eucalyptus Picchi traits indicators analysis showed that the value of the matrix EC, CEC values ??seedling growth and potassium are the main factors affecting the quality of which CEC of the greatest impact on seedling index.
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