CAJ | 학술논문

为了筛选出冀西北坝上地区大葱适宜的定植密度，研究了不同定植密度对大葱植株性状、抗病性、产量和营养品质方面的影响。结果表明，285855株/hm2的定植密度（株行距7 cm ×50 cm ）处理植株鲜质量和干质量分别为356.1、24.2 g ，显著高于其他处理；抽薹率最低，仅为1.0％；抗紫斑病和霜霉病，产量最高（101890.95 kg/hm2），较250125株/hm2和333495株/hm2的定植密度分别增产43.5％和42.5％；营养品质好。因此，285855株/hm2的定植密度适宜在冀西北坝上地区大面积推广。
위료사선출기서북패상지구대총괄의적정식밀도，연구료불동정식밀도대대총식주성상、항병성、산량화영양품질방면적영향。결과표명，285855주/hm2적정식밀도（주행거7 cm ×50 cm ）처리식주선질량화간질량분별위356.1、24.2 g ，현저고우기타처리；추대솔최저，부위1.0％；항자반병화상매병，산량최고（101890.95 kg/hm2），교250125주/hm2화333495주/hm2적정식밀도분별증산43.5％화42.5％；영양품질호。인차，285855주/hm2적정식밀도괄의재기서북패상지구대면적추엄。
A study on the planting density of welsh onion was condcuted in Bashang region in Northwest Hebei .A comprehensive evaluation on plant traits ,including disease resistance ,yield and nutritional quality ,was carried out .The results showed that the density of 285 855 plants per ha was the best among all the planting density ,with the dry weight and fresh weight of welsh on-ion plant being significantly higher than those with the other treatments .The treatment had low-est bolting rate of 1.0% ,and showed resistance to purple spot and downy mildew ,with yield in-creasing 43 .5% and 42 .5% compared to 250 125 plants per ha and 333 495 plants per ha ,respec-tively .This density was suitable for recommendation in Bashang region in Northwest Hebei .