测土配方施肥对玉米产量及氮、磷、钾肥利用率的影响

赵跃华, 曹向虎, 李婧婧

Effects of formula fertilization by soil testing on maize yield and the utilization rates of nitrogen, phosphorus, and potassium fertilizers

ZHAOYuehua, CAOXianghu, LIJingjing