【摘要】 论述了云南省进行纳罗克非洲狗尾草种子生产、提高种子产量的关键技术。指出施氮、刈割、生长调节剂、收种技术是提高种子产量的关键。而且通过对纳罗克非洲狗尾草种子产量和质量性状的逐步回归分析和模型优化分析,最终得出:分蘖期刈割2次+抽穗-开花期喷施600mg/L氯丁唑+施75kg/hm2尿素+铺膜收种+堆捂+干燥+脱粒方法是纳罗克种子生产的关键技术,能获得326.4kg/hm2的种子产量。更多还原

【Abstract】 The study main discussed the key technology during Narok seed production procedure.Nitrogen fertilization,defoliation,plant growth regulators application and seed harvest were considered as the crucial technology to increase seed yeild of Narok.Through the stepwise regression analysis between seed yield and seed quality characteristics and model optimization analysis,the study concluded that the key technology of Narok seed production was cutting twice between tillering stage,spraying paclobutrazol of 600mg/l at heading and anthesis stage,nitrogen fertilization of 75kg/hm 2 urea,paving-membrane harvest way and sealing-drying-threshing seed way.更多还原