Research On Castanea Mollissima Bl.Wastes Composting And Fertilizing Effection In Beijing Huairou District

With the development of economy and sustainable agriculture, Castanea mollissima Bl. waste on people's lives have no longer use value. But using the Castanea mollissima Bl. waste composting, reduce the pollution of the environment, and to realize the resource recycling is one of the effective ways and also chestnut green non-pollution cultivation of new methods. Based on the main variety of Beijing huairou area mollissima Castanea (Castanea mollissima cv. Huaihuang) as test materials, using its leaves, LiPeng, jade meters, cow muck as raw materials, set 7 different ratio, adopts EM technology to biast compost, best compost ratios and compost compost time, and proposes the best fertilizer effect through study fertilization programs.1 Compost evaluationThrough determining temperature, moisture content, pH value, NH4+-N, NO3--N,C/N in composting process, the effects of different ratios on compost maturity were researched. Simultaneously, Chinese cabbage seed germination index (GI) was adopted to evaluate maturity and physiology toxicity. The results showed that:①in the composting process, temperature, NH4+-N and C/N had similar changing trends in different ratios and tend to rise in the first 14 days, then gradually decreased. The highest temperature of E was higher than the other six ratios, it reached 62℃. GI and NO3-N presented a trend of rising. Moisture content was keeping declining; pH maintained 8-9;②GI was positively correlated with pH and NO3--N, and negatively correlated with NH4+-N and C/N; especially, GI was significantly correlated with NH4+-N, reached -0.7996;③in Beijing Huairou area, E(C. mollissima leaves:C. mollissima hull: corn stalks:cow dung=2:2:2:4) was the optimum combination of compost, its maturity efficient was high and the time reaching maturity was about 42 days. 2 Fertilizer effectBased on soil physical and chemical properties, nutrition, fruit quality and yield of determination, draw the following results:①autumn fertilizer effect than the spring fertilizer CK soil porosity than CK high 3.09g.kg"', including soil P content increase maximum higher than CK 4.92 g.k g-1, soil phosphatase activity of phrynichus mg.458 mg.kg-1.h-1,②annular fertilization was better than strip, fertilization and radial fertilizer fertilization and radial fertilization better strip. One leaf N fertilizer levels and ring 22mg. kg-1. the biggest difference between blade net photosynthetic rate 4.54μmol CO2 m-2 s-1,③25 kg/strains from 15 kg/good fertilizer plant and 35 kg/plant, the fruit of soluble sugar, than CK high 3.29%,protein than CK than CK,3.34%,Mg tha higher 4.66mg.kg-1.The maximum yield of fruit 1.85 kg.To sum up, in Beijing huairou area Castanea mollissima Bl. cultivation,, in autumn Circular fertilization,each ring 25 kg/strains, best fertilization scheme.