早春正值蔬菜生产淡季,上市品种数量少,价格高。发展保护地春早熟栽培,对丰富早春淡季市民的“菜篮子”、富裕农民,都有重要意义。春早熟栽培受诸多因素制约,其主要制约因素是低温和光照不足。因此,要争取早熟,首先必须尽可能增加光照强度,多获得热量,贮存,利用热能,其次还要有综合配套栽培管理措施。 Early spring is the off-season vegetable production, the number of listed varieties of small, high prices. The development of early spring cultivation of protected areas is of great significance to enriching the “basket of vegetables” and affluent peasants of the people in low-season in early spring. Early spring cultivation is constrained by many factors, the main constraints are low temperature and insufficient light. Therefore, to fight for precocious puberty, we must first increase the light intensity as much as possible, gain more calories, store and use heat energy, and second, we must also provide comprehensive and coordinated cultivation and management measures.