The main problems with phosphate and compound fertilizer production are analyzed, such as transportation, electric supply and funds.
此外，分析了磷复肥生产中存在的主要问题，如：运输、供电、资金。
Introduced are some problems concerning the design of compound phosphate fertilizer thick liquid pump in the light of its structure, hydraulic design, and sealing.
从结构型式、水力设计、密封型式等方面论述了磷复肥料浆泵设计的有关问题。
It indicates under the condition of the same investment, application of straw chemical fertilizer will obtain higher economic benefits than chemical compound fertilizer and diammonium phosphate.
进一步研究还发现，腐熟秸秆与化肥的复混使用可以获得较高的经济效益，其产投比远远高于磷酸二铵和其它普通复混肥。
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