磷石膏的主要成分是钙、硫 ,都是速效性。油料作物一般需钙、硫较多 ,施用磷石膏 ,有利于增产。1　磷石膏对向日葵的增产效果向日葵抗盐碱能力强。某些盐碱土种植冬小麦或春小麦生长不良 ,而种植向日葵可以正常生长。向日葵作为食用油 ,优于菜籽油 ,对人体健康有益。我们与内蒙 The main component of phosphogypsum is calcium, sulfur, are quick-acting. Oil crops generally require calcium, sulfur more, the use of phosphogypsum, is conducive to increasing production. 1 phosphogypsum sunflower yield Sunflower ability to salinity. Some saline-alkali soil planting winter wheat or spring wheat poor growth, and the cultivation of sunflowers can grow normally. Sunflower as an edible oil, better than rapeseed oil, beneficial to human health. We and Inner Mongolia