农田土壤主要指旱田土壤和水田土壤等非设施农业土壤。农田土壤由于长期受人为耕作因素的影响,其土壤形成规律已被打破,特别是水田土壤已发育为水稻土或接近水稻土,生产性状和肥力的发展在很大程度上受到人为活动的制约,因此,农田土壤肥力的提高便取决于人们的合理利用和有效的培肥与改良[1]。 Farmland soil mainly refers to dry farmland soil and paddy soil and other non-facility agricultural soil. Due to the long-term influence of man-made tillage, the formation of soil has been broken up. Especially, the paddy soil has been developed into paddy soil or close to paddy soil. The development of productive traits and fertility is largely controlled by human activities. Therefore, the improvement of farmland soil fertility will depend on people’s rational use and effective fertilization and improvement [1].