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以轮选987为供试品种,以北京市常规条播机播种方式为对照,研究了2BJK-8型小麦宽幅播种条件下不同行距26 cm(KF26)、23 cm(KF23)和20 cm(KF20)对小麦生长发育及产量的影响。结果表明:宽幅播种机播种小麦带宽度扩展至8 cm,提高了行内种子分布均匀度,降低了缺苗断垄率,个体素质明显提升,单株分蘖、成穗率增加,穗粒数和千粒重均比常规播种提高,亩产较对照增产13.43%、16.79%和12.44%。其中20 cm和23 cm行距下产量较高,推荐作为北京地区推广的适宜宽幅播种行距。
The wheat varieties 2BJK-8 with different row spacing of 26 cm (KF26), 23 cm (KF23) and 20 cm (KF20) were selected to test wheats 987 as test varieties and conventional sowing machines in Beijing. ) On the growth and yield of wheat. The results showed that the sowing width of broad wheat sowing machine extended to 8 cm, which improved the seed distribution uniformity, reduced the seedling breaking and sowing rate, significantly improved individual quality, tillering per plant, spike rate per plant, spike grain number and Thousand grain weight increased than the conventional seeding, yield per mu increased by 13.43%, 16.79% and 12.44% compared with the control. Among them, the yield at 20 cm and 23 cm row spacing is higher, which is recommended as the suitable broad planting spacing in Beijing.