The results showed that the potassium supplying capability of K fertilizer was lower than that of wheat straw, but slightly higher than that of manures.
随着厩肥和麦秸施用量的增加，土壤速效钾和缓效钾基本是成比例地增加，钾素有效转化率并未因施用量提高而明显降低。
The capacity of supplying potassium in high-fertility soil is better than that in low-fertility soil, and the rate of potassium recovery is high.
高肥力土壤供钾能力强，钾肥利用率较高，而低肥力土壤则相反。
Field experiment was conducted to study the effect of different supplying styles of potassium fertilizer on potassium content in flue-cured tobacco leaves and the methods to increase the content.
通过大田试验，研究了不同供钾方式对烟叶含钾量的影响及提高石灰性土壤上烤烟含钾量的可能途径。结果表明，施钾能显著提高烟叶产量，其中以粉肥结合喷优丰处理效果最好。
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