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首页> 外文期刊>Journal of Oil Palm Research >The Effect Of Incorporating Palm Residues At Replanting On Phosphate Dynamics In An Inland Soil In Malaysia
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The Effect Of Incorporating Palm Residues At Replanting On Phosphate Dynamics In An Inland Soil In Malaysia

机译：马来西亚再种植时残留棕榈渣对内陆土壤磷酸盐动态的影响

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摘要

The effects of adding approximately 200 mg P kg~(-1) soil in three different palm residue treatments (pulverized, shredded and partially-burned) at replanting on P fractions were investigated in afield experiment at Kluang, Johor, two and three years after oil palm replanting. The three treatments led to about two- to four-fold increases in the organic P pool over the control. This indicates the importance ofbiological activity, stimulated by incorporation of palm residues, in the distribution of P fractions. Organic P and microbial P are thought to be the main soil P fractions involved in P cycling in the soil when added through palm residues. The results also suggest that when palm residues were incorporated, the amount of P adsorbed was reduced by 40% to 50% after two years and by 45% to 50%, three years after replanting. Decreasing P sorption together with increasing P desorption in the soil is one important aspect for improving plant P uptake efficiency. Amending the soil with palm residues may supply a greater percentage of residual P to oil palm. Therefore, with incorporation of palm residues, P fertilization probably can be reduced for the two years following replanting.
机译：在柔佛州居ang的一项野外试验中，研究了在再种植后的三种不同棕榈残渣处理（粉碎，切碎和部分燃烧）中添加约200 mg P kg〜（-1）土壤对P组分的影响。油棕补植。三种处理导致有机磷库比对照增加约2到4倍。这表明在P组分的分布中，棕榈残基的掺入刺激了生物活性的重要性。当通过棕榈残渣添加有机磷和微生物磷时，它们是土壤中磷循环的主要土壤磷组分。该结果还表明，当掺入棕榈残留物时，两年后P的吸附量减少了40％至50％，而在重新种植三年后减少了45％至50％。减少土壤中磷的吸收以及增加土壤中磷的吸收是提高植物对磷吸收效率的重要方面。用棕榈残留物改良土壤可以为油棕提供更多百分比的残留磷。因此，由于棕榈残渣的混入，重新种植后的两年内磷的施肥可能会减少。

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