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芹菜性喜冷凉,上海地区一年四季均可栽培.但芹菜忌炎热和强光照.因此,要种好火秋芹菜除了选择耐热品种外,还要采取浸种催芽,遮荫避光,降温保湿,肥水促进等技术措施,才能使芹菜柔嫩,风味佳美.一、浸种催芽 选用黄心芹和上农玉芹等高产、优质、耐热品种,浸种12小时～14小时后用水冲洗,边洗边搓开表皮,沥干水分,用湿布包好后放置冰箱内,温度控制在18℃～20℃,待一半以上种子萌芽后即可播种.二、遮荫育苗 火芹菜以移栽的产量高.为了能在9月份供应芹菜,增加夏淡花色品种,以6月19日～21日播种为佳.苗床应选择通风好的地方,土壤要疏松,播前翻耕晒白,施入适量的腐熟有机肥作基肥.每66m~2苗床播种子150g左右(供1亩大田用).播后搭遮荫棚降温保湿,促进出苗和全苗.三、苗期管理 出苗后,结合除草间苗2次～3次.苗期要经常保持土壤湿润.小水勤浇,并做到天凉、地凉、水凉时浇水.结合浇水追施碳铵1次～2次,促进秧苗正常生长.苗期正值高温多雨季节,应加强病虫防治工作.防病可用350倍井岗霉素喷雾,或用多菌
Celery sexual cold, Shanghai area can be cultivated throughout the year, but the celery avoid hot and bright light .Therefore, to grow a good fire autumn celery in addition to select the heat-resistant varieties, but also to take the seed soaking, shading dark, cool Moisturizing, fertilizer and other technical measures to promote the celery tender, delicious style. A, seed soaking germination selection of yellow heart Qin and Shangnuqin high yield, high quality, heat-resistant varieties, soaking 12 hours to 14 hours after washing with water, while washing the rub Open the epidermis, drain water, wrapped in a damp cloth and placed in the refrigerator, the temperature control at 18 ℃ ~ 20 ℃, until more than half of the seeds can be sown after sowing. Celery can be supplied in September, summer flower color varieties to increase, June 19 to 21 sowing better seedbed should choose a good place for ventilation, the soil should be loose, tilling the sun before sowing, applied to the amount of decomposed organic Fertilizer for basal .Every 66m ~ 2 seedbed sowing about 150g (for 1 acres of field use.) After sowing shade shed cooling, and promote seedlings and seedlings. Three, seedling management Emergence, combined with weed seedling 2 ~ 3 times. Seedling should always keep the soil moist. Small water pouring, and to do the day cool, To cool, cold water when watering. Combined with watering topdressing ammonium bicarbonate 1 or 2 times to promote the normal growth of seedlings. Seedling at a time when high temperature and rainy season, should strengthen pest control. Spray, or use more bacteria