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potash fertilizer 鉀肥。

potash soap

At present because of the short supply of both phosphate and particularly potash fertilizer , the poor timing of delivery of fertilizers to farmers , and in many cases , the lack of knowledge of proper fertilizer needs and use by farmers , it appears impossible to actually test the above assumptions on a large scale in china 目前由于磷肥特別是鉀肥短缺,肥料供應不及時,而且在許多時候,農民不知該用什么肥料和怎么用,因此很難在中國對上述假定進行大規模的實際驗證。

Some demonstration and extension work based on existing scientific results have been done such as developing grain in large area of land using comprehensive cultivation measures in zibo city in 1987 and research on response of highly yielding crops to potassium and proper distribution of potash fertilizers in double cropping systems supported by ppic in 1990 已根據現有科技成果作出一些示范推廣工作,如1987年在淄博市用綜合栽培措施在大面積土地上開發糧食生產,以及1990年在ppic資助下研究一年兩作制下高產作物對鉀的反應和鉀肥合理分配。

For the farmers that did not use potash , however , access to potash fertilizer would have increased their profits , ie . , the production function estimates indicate that zero potash use does not maximize profits 因此,對于那些未使用鉀肥的農戶,使用鉀肥會增加他們的利潤,也就是說,生產函數估計表明,不用鉀肥不能取得最大利潤。