Effect of phosphate fertilizer addition on Stylosanthes green manure potassium at the manure microsite

文献类型： 外文期刊

第一作者： Huan, H.

作者： Huan, H.;Huang, D.;Liu, G.;Dong, R.;Huang, D.;Dong, R.

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关键词： exchangeable potassium;green manure microsite;latosol;non-exchangeable potassium;water-soluble potassium

期刊名称：AGROCHIMICA （ 影响因子：0.604； 五年影响因子：0.717 ）

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收录情况： SCI

摘要： To quantify P application effect on the mobilization and transformation of green manure (GM) potassium at the manure microsite, an incubation experiment was conducted. Stylosanthes GM (10 or 40 t ha(-1); GML or GMH) alone or co-applied with MCP (monocalcium phosphate containing 100 kg ha(-1) P2O5) and CK (control, added nothing) were added to soil cylinder surfaces and incubated for 14 and 28 days. The results indicate that K mobilization distance decreased or did not change after MCP addition except for water-soluble K in the GMH treatment and exchangeable K in the GML treatment after 28 d-incubation. Potassium content decreased or did not change after MCP addition except for the water-soluble K in the GMH treatment after 28-d incubation and exchangeable K in the GML treatment after 14 d-incubation. The results suggest that the supply of K from GM could be improved by the reduction of the rapid release in the initial short-term.

分类号： S13

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