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首页> 外文期刊>Journal of Oil Palm Research >NUTRIENT DEMANDS OF Tenera OIL PALM PLANTED ON INLAND SOILS OF MALAYSIA
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NUTRIENT DEMANDS OF Tenera OIL PALM PLANTED ON INLAND SOILS OF MALAYSIA

机译：在马来西亚内陆土壤上种植的Tenera油棕的营养需求

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摘要

Oil palm is unrivalled in its ability to convert solar energy into dry matter and vegetable (palm) oil. This process requires a large amount of nutrients, which must be supplied through soil or fertilizers. Good nutrient management, which includes a site-specific nutrient management plan, is important to achieve high yields of palm oil. Good knowledge of nutrient requirements at the various stages of growth and development of the oil palm is needed for the nutrient management plan and greater fertilizer-use efficiency. This paper highlights the nutrient requirements of oil palm based on the nutrient contents of tenera palms from analysis of their nutrients in fresh fruit bunches (FFB), trunk and roots in a 3~2 NK x 2P factorial fertilizer trial on Bungor series soil. The results showed that more of N is actually removed than previously estimated but an annual application of 4.2 kg ammonium sulphate per palm meets the nutrient demands to produce 30t FFB ha~(-1), i.e., the N applied balances the N demand. However, the K applied was surplus (23% of the 3.5 kg potassium chloride per palm applied) to the actual requirement of the palms. The unaccounted P (surplus of 20%) could have been fixed by the soil, which suggests that more phosphate rock fertilizer, i.e. over 2 kg palm~(-1) yr~(-1), is required to compensate for the P immobilized by the soil. The paper also proposes a comprehensive and sound nutrient management plan comprising various complementary components.
机译：油棕将太阳能转换成干物质和植物油的能力无与伦比。这个过程需要大量的营养，必须通过土壤或肥料来提供。良好的养分管理（包括针对特定地点的养分管理计划）对于实现棕榈油的高产很重要。对于营养管理计划和更高的肥料使用效率，需要对油棕生长和发育各个阶段的营养需求有充分的了解。通过在邦戈尔系列土壤上进行的3〜2 NK x 2P分解肥料试验中，通过对新鲜水果束（FFB），树干和根的营养成分分析，根据中果棕榈的营养成分来突出油棕的营养需求。结果表明，实际去除的氮量比以前估计的要多，但是每棵棕榈每年施用4.2千克硫酸铵可以满足生产30t FFB ha〜（-1）的营养需求，即，施用的氮平衡了氮的需求。但是，施用的钾是多余的（每棵棕榈实际施用的3.5千克氯化钾的23％），超出了棕榈的实际需求。未确定的磷（20％的剩余量）可能已被土壤固定，这表明需要更多的磷矿肥料，即超过2 kg棕榈〜（-1）yr〜（-1）来补偿固定化的磷。由土壤。该文件还提出了一个全面而合理的营养管理计划，其中包括各种补充要素。

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