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作 者 ：王德汉;彭俊杰;廖宗文

期 刊 ：植物营养与肥料学报 2003年 9卷 3期 页码：308-311

关键词：木质素钾肥；缓释；钾肥利用率；

Keywords:potassium fertilizer based lignin, slow-releasing, potassium utilization rate,

摘 要 ：利用木质素改性产物作为肥料添加剂 ,与氯化钾复混制成木质素钾肥 ,通过土柱淋溶与盆栽试验 ,验证木质素对钾肥的缓释作用与作物对钾肥利用情况。结果表明 ,木质素不仅可以减少钾肥流失 ,而且可以促进番茄与玉米生长 ,提高作物对钾的吸收。木质素来源于造纸废液 ,作为钾肥的缓释材料 ,其资源环保意义重大。

Abstract:A kind of potassium fertilizer based lignin was made from modified lignin and potassium chloride, leaching experiment and pot experiment were conducted to test the effect of modified lignin on slow-releasing potassium fertilizer and the Bio-utilization. The results showed that lignin could not only reduce the loss of potassium fertilizer but also promote the growth of tomato and maize, and increased uptake of potassium by crops. Lignin from paper-making waste liquor was used as slow-releasing material to potassium fertilizer, which was propitious to resources utilization and environmental protection.

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