【摘要】 该文经综合分析认为,土壤酸化、钙镁钾不平衡、土壤多锰缺硼是棕壤存在的主要问题。提出了改良酸性土壤、平衡土壤阳离子、解决多锰缺硼的具体施肥技术。更多还原

【Abstract】 The soil acidification and the imbalance of calcium,magnesium,potassium were analyzed synthetically.The main problem of the brown soil was excessive manganese and lack of boron.And the concrete fertilizer applying techniques which were meliorating acidic soil,the soil cation balance,solving nutritional excess or deficiency were brought forward.更多还原