老根菠菜是早春4～5月份上市的主要蔬菜品种。近3～4年来,沈阳地区由于对老根菠菜返青时管理不善,死苗严重,影响了早春蔬菜的供应。据调查,老根菠菜返青时死苗的原因除了因浇冻水不足,根子生长不良,以及返青后抗寒力降低,易遭早春冻害致死外,主要与早春降雪有 Laogen spinach is listed in early spring 4 to May the main varieties of vegetables. Nearly 3 to 4 years, Shenyang, due to poor management of the green spinach reentry, dead seedlings serious, affecting the supply of early spring vegetables. According to the survey, the root of spinach re-green when the reasons for dead seedlings in addition to lack of pouring water due to lack of growth of roots, and cold resistance after turning back green reduced susceptible to early spring frost-lethal, mainly with early spring snowfall