不同硫肥品种的水稻肥效试验研究

Studies on Effect of Different Varieties of Sulfur Fertilizer on Ric

在缺硫土壤上以石膏、硫磺、硫酸钾镁（SPM）作为流源进行硫肥水稻试验，并设置与石膏等钙量、与SPM等镁量的石灰、MgCl3处理，结果显示，增施硫、钙、镁，水稻均有显著增产，其中硫的增产效果最好；在3个硫肥品种中，以施石膏增产最大、施硫磺效益最佳。讨论了施硫对水稻生长发育、营养状况及对稻谷品质的影响。

The experiment with different sulfur fertilizers (gypsum, sulfur, potassium magnesium sulphateSPM) application to rice was carried out in the soil of sulfur deficiency. The results showed that application of sulfur, calcium and magnesium to rice all have significance for yield increase, and sulfur is the best one.Among the application of three kinds of sulfur fertilizers, the application of gypsum has the biggest yield increase and the application of sulfur has the best benefit. This paper also discussed the effect of sulfur on rice growth, nutrition conditions and quality.