严防西红柿空心果内容摘要:
2、部摘除。 果穗上的叶片不可摘除,以保证上层果实发育良好。 如果光照不足,可人工补充光照。 加强温度管理。 白天的温度控制在 2530左右,晚上的温度在 1520,以防止秧苗徒长。 西红柿在花期时对温度比较敏感,特别是开花前 5 天和开花后 3 天,低于 15或高于 30都不利于开花、授粉。 在结果期白天温度控制在25左右,夜间控制在 15左右。 合理的水分管理。 在保证正常生长的前提下,以控水为主。 开花前,水分保持中湿程度,土壤含水量 65%75%,结果期应保持土壤湿润,土壤含水量在75%85%之间。 一般在西红柿长到核桃大小的时候开始浇水施肥,可以随水冲施有机肥或复合肥。 以后视植株的长势、天气状况,摘一茬西红柿浇一次肥水。 合理施肥。 要多补充大量元素,氮、磷、钾肥以氮钾成分为主,协调好植株的营养生长与生殖生长。 基肥一般按每亩施用腐熟堆厩肥 4000 公斤、复合肥 40公斤、过磷酸钙 30 公斤。 追肥要在坐果前薄施,坐果后重施,分次追肥。 合理施用激素。 开花结果时,要尽可能提高授粉,受精能力,使之形成种子,有条件的可进行人工授粉,在开花当天或开花前后 12 天,根据温度条件,一般采用 1520 毫克松斤的防落素喷施。 专利查询。严防西红柿空心果
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