向日葵是一种耐盐作物,在全盐量0.4％以下的盐渍化土壤中能比较正常地生长。并具有生物排盐、改良盐碱地的作用,利用盐碱地发展向日葵生产大有可为。向日葵各个生育阶段的耐盐能力也有差异,一般发芽出苗阶段耐盐力最低,常常难以出全苗,这是生产上存在的一个关键问 Sunflower is a salt-tolerant crop that grows normally in salinized soils that have a total salt content of 0.4% or less. And bio-salt, salt water to improve the role of the use of saline-alkali to develop solar energy promising. Sunflower at all stages of the development of salt tolerance are also different, the general emergence of seedling emergence of the lowest salt tolerance, often difficult to produce a whole seedlings, which is the production of a key question