【摘 要】
：
众所周知,植株的营养状况影响物候期的进展.普遍认为,限制氮素营养可加速作物成熟,对禾谷类作物尤其如此(Van Dobben, 1960, Khalil, 1956).本文的结论认为,加速作物成熟是
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众所周知,植株的营养状况影响物候期的进展.普遍认为,限制氮素营养可加速作物成熟,对禾谷类作物尤其如此(Van Dobben, 1960, Khalil, 1956).本文的结论认为,加速作物成熟是由于氮素缺乏,植株冠层温度通常高于氮素充足植株的冠层温度的缘故.
It is well-known that the vegetative state of plants affects the progress of the phenophase and it is generally accepted that limiting nitrogen nutrition accelerates crop maturity, especially for cereals (Van Dobben, 1960, Khalil, 1956). The conclusion of this paper is that accelerated crop maturation is Due to nitrogen deficiency, canopy temperature is generally higher than canopy temperature of nitrogen-abundant plants.
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