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首页> 外文期刊>Journal of Oil Palm Research >SHORT-TERM RESPONSES OF OIL PALM TO AN INTERRUPTED DRY SEASON IN NORTH KEDAH, MALAYSIA
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SHORT-TERM RESPONSES OF OIL PALM TO AN INTERRUPTED DRY SEASON IN NORTH KEDAH, MALAYSIA

机译：马来西亚北部吉打州插油旱季对油棕的短期响应

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摘要

The annual dry season in north Kedah, which can extend for two to three months, was interrupted in 2006 by three substantial rains at approximately monthly intervals. Measurements of CO_2, latent heat and sensible heat fluxes above the canopy of five and a half year-old oil palm, supplemented by growth measurements, soil water and supporting meteorological data, indicated considerable mitigation by the rainfall of the effects of the dry season. Thus, reductions in CO_2 uptake, canopy conductance and evapotranspiration, and increases in sensible heat flux and accumulation of spear leaves, were less than expected. The data suggest that even infrequent irrigation during a dry season may suffice to prevent a substantial build-up of stress in the palms under the edaphic conditions of the trial. Further observations to determine the long-term impacts on yield are, however, necessary.
机译：吉打州北部的一年一度的旱季可能会持续两到三个月，但在2006年被大约每隔一个月的三场大雨中断。对具有五年半历史的油棕树冠上方的CO_2，潜热和显热通量的测量，再加上生长测量，土壤水和辅助气象数据，表明降雨对干旱季节的影响大大减轻了。因此，CO_2吸收，冠层电导和蒸散量的减少以及显热通量的增加和矛叶的积累均未达到预期。数据表明，即使在干旱季节不频繁灌溉，也足以防止在试验性的营养条件下手掌中的压力大量累积。但是，需要进一步观察以确定对产量的长期影响。

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