natural nutrient是什么意思

用法例句

Some natural nutrient carriers such as zeolite,sepiolite,medical stone,weathered coal, and some silicabearing cores and so on were tested in order to study their nutrient contents and their characters of the isothermal adsorption and desorption for the added N,P,K.

为更好地开发新型作物控释肥,提供适宜的控释剂和调理剂,以沸石、硅锰肥、硅磷肥、海泡石、麦饭石、风化煤等几种天然养分载体为材料,研究了其本身的养分状况及其对添加氮、磷、钾养分的恒温吸附和解吸性能。