施氮量和种植密度对攀西地区烤烟个体发育水平和群体结构的影响
Science and technology of Sichuan agriculture(2016)
Abstract
通过对云烟85品种的种植密度和施氮量进行7个处理的设置,想探求烟株增密控氮的最优群体和个体.结果表明攀西地区在中等肥力的植烟区,群体密度增加到1200株/667 m2,纯氮降为5.35 kg/667m2时可取得较适宜的个体发育水平和群体密度,并能取得较好的经济效益和质量.
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