Introduction: Nitrogen (N) fertilizer is the most widely used fertilizer (300 - 350 Kg/Ha) on the corn plant, mean while......

采用盆栽试验研究了NH4＋与NO3对紫花苜蓿（Medicago sativa）饲草产量和品质的影响。结果表明，适量施氮肥有利于紫花苜蓿饲草产量的提高......