【摘要】 三江平原漂白冷凉淋溶土垦殖后土壤有机质含量降低,土壤酸度增高,土壤养分元素有增有减。土壤的物理性质也因有机质的减少和耕作而变差,土壤的生物学性质也发生了显著变化。采取秸秆还田、施用石灰、平衡施肥及合理耕作等措施,可使土壤肥力得到恢复和发展。更多还原

【Abstract】 Being cultivated, Albic Boric Luvisols in Sanjiang plain, the amount of organic matter decreased, the soil acidity increased, and the nutrient elements in soil changed greatly, some became increased, while some became decreased. Moreover, the physical properties of the soil comes poorer with the decrease of organic matter and compressed by machine. The biological properties in the soil also changes. Taking some effective measures such as back straw liming, balanced fertilization and meticulous cultivation, counld restore and improve the fertility of the Albic Boric Luvisols.更多还原