Root Growth, Water and Nitrogen Use Efficiencies in Winter Wheat Under Different Irrigation and Nitrogen Regimes in North China Plain

Excessive nitrogen (N) application combined with water shortage has a negative effect on crop production, particularly wheat (Triticum aestivum L.) production in the North China Plain. This study examined root growth and water–nitrogen use efficiency in wheat grown on loam soil in the North China Plain, from 2012-2014 using a fixed–position experiment initiated in 2010. The experiment followed a completely randomized split–plot design with four...