介绍了水稻两段栽培技术的原理和方法，以及信阳市浉河区推广水稻两段栽培技术在减肥控氮、节本增效等方面取得的主要成效和主要做法。

This study introduced the theory and method of two-stage paddy cultivation technique, summarized the effects and practice of expanding the two-stage paddy cultivation technique on reducing fertilizer, controlling nitrogen, saving cost and increasing the yield of rice in Shihe District.