【摘 要】
：
本文利用15N标记的(NH_4)_2SO_4研究油菜在不同生育期(苔期、苔期+花期和花期)对追施氮肥的吸收、分配和利用,结果表明油菜植株各器官来自追肥氮的比例以抽苔期+花期为最高,
【机 构】
：
浙江农业大学农学系,浙江农业大学农学系,浙江农业大学农学系,浙江农业大学农学系
论文部分内容阅读
本文利用15N标记的(NH_4)_2SO_4研究油菜在不同生育期(苔期、苔期+花期和花期)对追施氮肥的吸收、分配和利用,结果表明油菜植株各器官来自追肥氮的比例以抽苔期+花期为最高,尤以籽粒更为突出,抽苔期+花期籽粒中氮比其余二期高出80％。
In this paper, 15N labeled (NH_4) _2SO_4 was used to study the uptake, distribution and utilization of topdressing nitrogen fertilizer in different growth stages (moss, moss, florescence and flowering). The results showed that the ratio of topdressing nitrogen The moss period and the flowering stage were the highest, especially the grains were more prominent, and the nitrogen in the bolting stage and flowering stage grains was 80% higher than the other two stages.
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