陕北黄河沿岸地区香料烟施氮量研究

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陕北黄河沿岸地区是我国香料烟主要产区之一,通过4年对该地区不同土地类型型香料烟施氮量的试验研究表明,土壤碱解氮在30×10^-6左右时,香料烟适宜施氮量为1.5~2.0kg/亩,所产烟叶评吸质量较好,1~3级烟叶所占比例和亩产值较高,产量适中,主要生育期较短。
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