The soil macro-aggregates can check the leaching of the cations and anions in fertilizer salt and are favourable to use of fertilizer.
土壤大团聚体可以抑制施肥盐阴，阳离子的淋溶，有利于提高对肥料的利用。
2
A new process called ore blending-KOH molten salt decomposition-water leaching was first put forward for the processing of a low-grade refractory tantalum-niobium ore.
首次提出采用“配矿- koh熔盐分解-水浸出”的新工艺来处理低品位、难分解钽铌矿。
3
The technological processes of raw ore direct acid-leaching, raw ore salt roasting-water leching or acid leaching and raw ore salt roasting-acid pelletizing curing-acid leaching, etc.