Quzhou City Kecheng Citrus Area Of Cultivated Land Evaluation Of Soil Fertility And Fertilizer Improved

Soil is one of the most basic thing of all the materials in human being’s survival and development, also the most fundamental source of material production.Cultivated land is the essence of the land which is the prouduct material that people can acquire food and other agricultural means of production. Citrus reticulata has important edible and medicinal value,soil is the basis of Citrus reticulata growth. The soil fertility of citrus growing area was effect of human management, the investigation and evaluation of soil fertility could found out the soil fertility limiting factor, It has important significance to the citrus orchard soil management622 soil samples in citrus orchards in Kecheng,Zhengjian province were colleted, the soil p H, the contents of soil organic matter, soil available P、K, total N and cation exchange capacity(CEC) were analyzed.The linear weighted method was used to evaluation of the farmland productivity in citrus orchards. The results showed that the toal farmland area of Kecheng was 11289 hm2,in which the level 1 was 2319 hm2,about 20.54% in the total area; the level 2 was 6030 hm2,53.42% of total area; the level 3 was 2940hm2, 26.04% of total area.The main obstacles of citrus orchard soil is soil p H and cation exchange capacity was lower, unbalance between N,P and K. It was suggested that to promote soil testing and fertilizer recommendation, cultivation ecological chicken in citrus orchard, Promotion of interplanting green manure and the implementation of the "pig-biogas-fruit" fertilizer.