Study On Soil Microorganism Diversity Of Agro-forestry Camellia Oleifera

Agro-forestry is a kind of ecological cultivation mode,reasonable agro-forestry is not only beneficial to plant,but also can improve soil quality,utilization rate of land and to increase the farmers’ income,it is a trend of the development of agriculture and forestry.In this paper,through the analysis of intercropping honeysuckle,peanut,soysoybean on oleifera forest soil fertility,soil microorganisms and the influence of the incidence of plant diseases and insect pests,to select an effective mode of intercropping of forest,and provide theoretical basis for the camellia forest,the main results were as follows:(1)Effect of interplanting on soil microbial diversities of Camellia oleiferaSoil microbial diversity index of intercropping peanut treatment is 3.463,3.454,3.299 in each period,for the highest of three treatment at the same time.The similarity between the groups of different season is below 0.60,is a low level of similarity,but the similarity between intercropping treatments level is higher than the CK;Intercropping honeysuckle microbial community evenness is relatively close,the groups are at around 0.990,intercropping leguminous each deal with highest evenness is 0.982,the lowest 0.960,difference is greater than the honeysuckle treatment;The comprehensive effect of Intercropping soybean and peanuts treatment in forest soil microbial are remarkable。(2)Effect of interplanting on soil fertility of Camellia oleiferaImpact of intercropping honeysuckle on soil available potassium and organic matter is significant different from CK in spring;Significant difference was found in samples of fall on organic matter and total nitrogen of intercropping soybea treatment and CK,and organic matter,total nitrogen and available nitrogen have significant difference with CK in winter;The organic matter,total nitrogen and available nitrogen of intercropping peanut treatment are significant different from CK in the fall and winter.Tne intercropping honeysuckle treatment has the highest growth rates of soil organic matter,available nitrogen,available phosphorus and available potassium in summer,compared with the CK respectively by 20.37%,11.26%,21.30%,13.28%,and the soil available phosphorus in the fall and winter of intercropping honeysuckle treatment increased most,had 18.41%,30.61%higher than CK;The total nitrogen content of intercropping soy soybean treatment in summer grow most,up by 27.27%;The soil organic matter,total nitrogen,available nitrogen,available potassium of intercropping peanut treatment in autumn and winter grow most,the autumn sample respectively compared with CK increased by 54.42%,65.67%,25.92%and 19.61%,and the sample of winter respectively than CK increased by 94.39%,93.14%,55.20%,32.23%.(3)Effect of interplanting on disease and pest of Camellia oleiferaThe different interplanting patterns can suppress the anthracnose,agaricodoc-hium,sooty blotch and insect pests in different degrees.The anthracnose disease index,significant difference was found btween the 3 kinds of interplanting patterns and CK,the best treatment was interplanting honeysuckle,the control efficiency was 27.80%;The difference of agaricodochium btween the 3 kinds of interplanting patterns and pure forest was not significant;The difference of sooty blotch disease btween the 3 kinds of interplanting patterns and pure forest was not significant;Significant difference of insect incidence was found in pure forest and interplanting peanut and soybean areas,control efficiency were 21.97%and 20.33%respectively.