【摘要】 针对豫北地区春季气候特点,进行7个春播大白菜品种(组合)2月1日、2月10日和2月20日3个播期栽培筛选试验。结果表明,在温室育苗、小拱棚定植同一栽培模式下,不同播期对春播大白菜的生长影响较大,球叶数、短缩茎长度、病害情况及产量均有明显差异;并且随着播期的延后,球叶数呈递增趋势、短缩茎呈递减趋势、软腐病越来越重;其中在2月10日播种时大白菜产量最高,每667 m~2可达3 794.49 kg。更多还原

【Abstract】 According to the climatic characteristics in spring in the north area of Henan province, three sowing time tests including February 1st,February 10 th and February 20 th were carried out on seven spring Chinese cabbage varieties.The result showed that under the same cultivation mode, the number of ball leaves, short stalk, disease and yield were greatly affected by the sowing time. With the sowing date delayed, the number of leaves increased, the length of short stalk decreased and the soft rot became more and more serious. The yield was highest up to 3 794.49 kg per 667 m~2 when the plants were sown in February 10 th.更多还原