首页|The Effect Of Incorporating Palm Residues At Replanting On Phosphate Dynamics In An Inland Soil In Malaysia
The Effect Of Incorporating Palm Residues At Replanting On Phosphate Dynamics In An Inland Soil In Malaysia
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
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.
oil palm residuessoil p fractionsreplanting
ZULKIFLI H、KHALID H
展开 >
Malaysian Palm Oil Board, P.O. Box 10620, 50720 Kuala Lumpur, Malaysia
NETL
NSTL
