天津市新建设施农业土壤主要障碍因素调查研究初报

通过对新建设施基地土样的调查和取样,对土壤的养分、物理性状、微生物数量等因素进行了分析和研究。结果表明,土壤有机质、全氮、有效磷含量偏低,耕层相对较薄,孔隙状况不良,土壤微生物数量偏少等因素是新建设施农业基地土壤的主要障碍因素。

Preliminary Report of the Main Constraints of the Soil in the Facilities Agriculture Construction in Tianjin

For improving the soil fertility to support the growing of greens in the facilities agriculture construction (FAC), the soils in the FAC were investigated and sampled, and the impact factors of soil fertility were analyzed, such as soil nutrient, the physical characters and the quantity of edaphon. The results showed that the main constraints of new FAC were that the content of soil organic matter and nitrogen, available phosphorus was low, the arable layer looked weak, soil pore space was bad and the quantity of edaphon was not sufficient.