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小白菜在合肥地区自“立春”到“白露”随时都可播种,其中“夏至”至“大暑”播种的叫热水白菜或湯白菜;“大暑”至“立秋”播种的通称为火菜或伏水菜。热水白菜(包括伏水菜,下同)生长快、时間短,适于間作套种,增加复种指数,能解决当时市場缺乏綠叶蔬菜的供应問題。但据1952—1961年十年气象資料,这时(6月下旬至8月上旬)旬平均溫度达摄氏二十七点七度,地面温度达三十点七度,而且多雷陣性暴雨,降雨速度快、冲击力大,空气相对湿度高达81%,为全年最高峰。在这样高溫多湿的恶劣气候条件下,生产柔嫩的热水白菜,常因一場热暴雨前功尽弃虼?如何提高栽培技术,生产又多又好的热水白菜供应市場,就成为蔬菜生产中的一个突出問題。当地菜农經多年的摸索,在这方面取得了不少的經驗,現作如下介紹。
Chinese cabbage in Hefei from “Li Chun” to “white lotus” can be sown at any time, including “summer solstice” to “summer” sowing called hot water cabbage or soup cabbage; “summer” to “autumn” sown commonly known as fire or Fushui vegetables. Hot water cabbage (including Fushui vegetables, the same below) fast growth, short time, suitable for intercropping, increase multivariate index, can solve the lack of market supply of green leafy vegetables. However, according to the meteorological data of 1952-1961, the average temperature reached 27.7 degrees Celsius and the ground temperature reached 30.7 degrees during the period from late June to early August. At the same time, Rapid rainfall, impact, air relative humidity as high as 81%, the year-round peak. In this hot and humid weather, the production of tender hot water cabbage, often due to a torrential rain frivolous? How to improve the cultivation techniques, production and more and good hot water cabbage supply market, it has become a vegetable production Outstanding issue. After years of exploration by local vegetable farmers, a lot of experience has been gained in this respect. The following introduction is made.