When feeding the moisture-absorbing and moistened ammonium bicarbonate, the most of availablefertilizer feeders are liable to make the fertilizer bridging, adhering and blocking up.
国内现有的一些排肥器，在排施易吸湿、潮解的粉状碳酸氢铵化肥时，多数容易引起架空、粘附、堵塞等现象。
2
In the rich sparingly soluble phosphorus soil. Phosphorus bacteria fertilizer could increase the content of soil available phosphate.
在富难溶性磷土壤上，施用磷细菌肥可以提高土壤速效磷含量。
3
The increase in available P due to P fertilizer application and the yearly decrease in available P after pot culture varied greatly with soil types.