棉花苗床管理技术要点张改英陈家友曹德玉（周口农业学校，周口４６６００１）搞好棉花苗床管理，是春棉育苗移栽培育壮苗的关键。在苗床管理中，应做到“一控五防三及时”。即控制好苗床温度、湿度；防止高温烧苗、寒流冻苗、发病死苗、高脚旺苗和铁杆老苗等；及时通风炼... Cotton seedbed management technical points Zhang change Ying Chen Jiayou Cao Deyu (Zhoukou Agricultural School, Zhoukou 466001) do a good job cotton seedling management is the key to spring cotton seedling transplanting strong seedlings. In the seedbed management, should be “a control five anti-three timely.” That control the seedbed temperature, humidity; to prevent high-temperature burning seedlings, cold frozen seedlings, the incidence of dead seedlings, tall seedlings and iron seedlings, etc.; timely ventilation and refining ...