Fertilizer trials showed a significant potash response in soybean up to 225 kg k2o / ha ( table 2 ) 肥料试验表明，大豆对施用225公斤/公顷k2o有显著的增产效应（表2 ） 。
Na2o solid fuels - determination of chemical composition of fuel ash - part 8 : determination of soda and potash nao , ko contents 固体燃料.燃料灰化学成分测定.第8部分:氧化钠
Assume that the price of rice is 0 . 5yuan / kg , while the price of potash ( k2o ) is 0 . 73 yuan / kg 对图2作进一步地分析可得知，钾肥用量在120 ~ 180公斤/公顷之间时可能会产生最大利润。
This means that the ratio of the price of potash to the price of rice is 0 . 73 / 0 . 50 = 1 . 46 这一结论的得出是由于只有在钾肥用量超过120公斤/公顷时，才能使边际产量下降，从而与1 . 46相等。
In this paper , the visible absorption spectum of potash in polurized light is studied in the wula mountains gold deposit 摘要尝试性地对乌拉山脉金矿田中钾长石进行了偏振光下的吸收光谱研究。
Mengel ， k . , kirkby , e . a . , principles of plant nutrition ( 4th ed . ) , international potash institute , bern , switzerland , 1987 鲁如坤等， 《土壤植物营养学原理和施肥》 ，化学工业出版社，北京， 1998 。
Studying on the potash micatization in the caijiaying lead - zinc - silver deposit studying on the potash micatization in the caijiaying lead - zinc - silver deposit 蔡家营铅锌银矿床中的钾质白云母研究分析
Table 2 also shows that a change in the level of nitrogen application affects the mpp of potash use for any given level of potash use 表2又表示在钾的各个用量水平，氮肥用量的变化对钾肥边际产量的影响。
This paper briefly describes the potash resources inthailand , laos , russia , uzbekistan and turkmenistan and puts forwardsome comments 本文简述泰国、老挝、俄罗斯以及乌兹别克斯坦、土库曼斯坦的钾资源情况和建议。
The reserves of iron , barium , antimony , silver , fluorite , potash feldspar , white mica and other 20minerals are of a considerable scale 铁、钡、锑、银、莹石、钾长石、白云母等20种矿藏储量可观，钾长石储量居全国第一。
