In order to overcome above problems,we used GreenSeeker to decide the amount of nitrogen application in wheats at jointing stage based on spectrum of chlorophyl.

• 试验结果表明,该技术不仅可以减少氮肥施用量,而且可以明显增加小麦籽粒产量和氮肥利用率,提高小麦生产的经济效益。