The result shows that the content of slow-release potassium and available potassium is low. Theamount of available potassium and fixedpotassium increase with increasing amount of applied potash.
结果表明，风沙土钾素含量较低，土壤速效钾含量及被土壤固定的钾量均随着施钾量的提高而增加。
2
Electron microscopic observations revealed that the endosperm cells of rice, which were fixed by the potassium permanganate, showed a distinct endomembrane organization.
稻胚乳细胞经高锰酸钾固定法固定后，显示出十分清晰的内膜结构。
3
The cells growing to subconfluence were fixed with potassium permanganatemixture to preserve their membranous system.