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磷肥在晋南石灰性土壤的肥效问题,根据目前有关材料报导,其变化规律不一。中国农业科学院土壤肥料研究所两年来(1957—1958)在晋南农村基点(在解虞县及临猗县基点,现改为运城县),结合群众经验研究的结果,石灰性沙质壤土栽种小麦施用磷肥的两个试验——在棉花茬的小麦增产仅3.85%,在休闲地的小麦增产仅9.95%,效果不显著。但施
Phosphate fertility in calcareous soil in southern Shanxi, according to the current reports on the material, the variation of different rules. Soil and Fertilizer Institute of Chinese Academy of Agricultural Sciences two years ago (1957-1958) in rural areas in southern Shanxi (in the base of Jieyu County and Linli County, Yuncheng County was changed), combined with the results of mass empirical research, calcareous sandy loam planting Two experiments on the application of phosphate fertilizer to wheat - wheat yield increased by only 3.85% in cotton stubble and only 9.95% increase in fallow wheat, the effect was insignificant. But Shi