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本试验在山西省农科院高寒作物研究所旱地试验田进行,播种期5月26日至6月25日。每期间隔10天,分4期播种。供试品种1988年为右玉荞麦,1989年和1990年均为日本荞麦。随机区组排列,重复4次,小区面积13.34平方米,亩留苗8万株。苗高5～7厘米中耕1次,封垄前再中耕1次,70％子粒呈褐色时收获。 1.播种期对荞麦子粒产量及其构成因素影响明显,有较高效应。在适宜范围内,随着播期的推迟,子实产量明显下降。不同年
This experiment was carried out in dryland experimental field of Institute of Alpine Crop Research, Shanxi Academy of Agricultural Sciences, sowing period from May 26 to June 25. Each interval of 10 days, divided into 4 seeding. Test varieties in 1988 for the right jade buckwheat, 1989 and 1990 are Japanese buckwheat. Randomized block arrangement, repeated 4 times, the plot area of 13.34 square meters, Mureu Miao 80000. Seedling height 5 ~ 7 cm cultivating 1 times, sealing ridge again before cultivating 1 times, 70% of the seeds were brown when harvested. 1. Sowing date of buckwheat grain yield and its composition factors significantly, with higher effect. Within the appropriate range, with the sowing of the delay, the apparent decline in real output. Different years