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第 1 期福建山地土壤分类的研究………………………(1)江苏省滨海盐土脱盐过程pH值上升原因的探讨 ………………………………………………(5)采用以水、肥为中心的综合措施改良盐渍土 ………………………………………··……-(8)甘肃省山“县青阳口滩耕地土壤次生盐渍化的 产■
The first phase of Fujian mountain soil classification ........................... (1) Jiangsu coastal saline desalination pH value of the reasons for the ................................................. ... (5) Adopt a comprehensive approach centered on water and fertilizers to improve saline soils .................................................... (8) Gansu Province ”Mountains Qingyangkou Secondary salinization of soil in beach land ■