论文部分内容阅读
(一)选择适宜的品种目前适于春季栽培的优良早熟品种有耶尔福、瑞士雪球等,中熟品种有上海八十天等。适于秋季栽培的优良早熟品种有福建六十天、澄海早菜花等,中熟品种有福建八十天、荷兰雪球等。 (二)适期播种,培育壮苗菜花花芽分化及其早晚,与播种期和秧苗大小密切相关。适宜的播期应使秧苗在定植时有5~6片以上的真叶,且叶大茎粗,根系发达,这样才能使将来的花球出现早而肥大。如果秧苗叶少茎细,花球出现晚而小,产量低。菜花行育苗移栽。春菜花育苗是在12月上中旬阳畦播种育苗。菜花育苗的床土必须
(A) select the appropriate varieties currently suitable for spring cultivation of good precocious varieties are Yaluo Fu, Switzerland snowball, maturing varieties such as Shanghai eighty days. Suitable for autumn cultivation of good varieties of early maturing Fujian sixty days, Chenghai, such as early flowering, medium maturing Fujian eighty days, the Dutch snowball and so on. (B) suitable for sowing, nurturing strong seedling flower bud differentiation and sooner or later, and the sowing date and seedling size are closely related. The appropriate sowing date should make the seedlings have more than 5 to 6 pieces of true leaves when planted, and the leaves are big and thick and the root system developed so as to make the future flower bud appear early but hypertrophy. If the seedling leaves less stem thin, late and small flower bulbs, low yield. Cauliflower line transplanting. Spring cauliflower seedling is raised in mid-December Yanggu sowing seedlings. Cauliflower bed soil bed must