通过田间试验、相关分析研究了松嫩平原黑土和黑钙土的锌肥有效施用条件。结果表明 :当土壤 p H>7.2、石灰含量 >3.9%、砂粒含量 >40 %、代换量 <15 cm ol/ kg、有机质含量 <2 %、土壤有效锌含量低于缺锌临界值0 .8m g/ kg时 ,施用锌肥具有明显的增产效果。而在高磷情况下会降低土壤锌有效性 ,易引起玉米缺锌加重。吉单10 1和四单 8两个玉米品种对锌缺乏最为敏感。 Through field experiments and correlation analysis, the effective application conditions of Zn fertilizer in black soil and black soil of Songnen Plain were studied. The results showed that the effective zinc content of soil was lower than the critical value of zinc deficiency when p H> 7.2, lime content> 3.9%, sand content> 40%, substitution amount <15 cm ol / kg, organic matter content <2% 8m g / kg, the application of zinc fertilizer has obvious yield-increasing effect. In the case of high phosphorus will reduce the effectiveness of soil zinc, zinc deficiency can easily lead to aggravate. The two maize varieties, Jidan 10 1 and Sidan 8, were the most sensitive to zinc deficiency.