一、时间选择：玉米肥团料应在玉米播种前40-50天堆制为好，地点多选在种植玉米的田地块头较平坦、排灌方便的地方。 二、肥料来源：以充分腐熟的优质农家肥为主，配以适量化学肥料。农家肥以圈肥最好，化肥以含氮、磷、钾全面的三元复合肥，外加适量锌镁肥。如没有三元复合肥 First, the time to choose: corn fertilizer should be 40-50 days before sowing the corn piled as well, more locations in the corn planting plots of the first block, irrigation and drainage convenience. Second, the source of fertilizer: to fully decompose the quality of manure-based, together with the appropriate amount of chemical fertilizers. Farmyard manure to the best circle of fertilizers to nitrogen, phosphorus and potassium comprehensive ternary compound fertilizer, plus the amount of zinc and magnesium fertilizer. If there is no ternary compound fertilizer