Seco-Geology Environment Situation Of Vegetable Cultivation Base Of Shouguang, Shandong And Study On Selective Cultivation

Through Eco-geology envirenment situation survey of vegetable cultivation base of Shouguang,we have found that:the soil of work area is clean overall. Shouguang City has the clean soil conditions to develop green vegetable production; Shouguang surface soil organic content Meet the requirements of national standards for green food production in soil fertility; Three nutrient content of soil surface is uniform, the distribution of the element content in surface soil is affected by soil parent matairal,formation process and human activityBy the analysis of the Vegetable sample test results of Shouguang vegetable planting base,we can find that:the overall level of heavy metals in vegetables of Shouguang vegetable planting base is well, all samples meet the standard pollution-free vegetables, most consistent standards of green food Only Pb average concentration slightly exceeding the standards of green food; the same time, we can see that, the enrichment of heavy metals of Vegetables in Shouguang compare with southern city such as Guangzhou,Zhujiang,has its own characteristics, various vegetables in the average heavy metal content order is:Eggplant> rhizome> melon and fruit> leaf; The order of the content of heavy metals in various vegetables is:Pb> Cr> As> Cd> Hg.Selective planting, namely grow be selective. Planting crops is according to the elements content in soil 1, it also need to understand the elements enrichment preferences of planting crops.In the area of high content of beneficial elements,we can plant crops that is enriched to this element, so we can get high quality products with rich elements, whereas,we can plant some kinds which absorpt and concentrate low heavy metal, "Hasten after wealth and avoid damage",we can get produce crops with high quality.