试验对不同生产方式下的玉米产量构成影响因素进行对比分析，制定“玉米田养鹅”模式下的玉米增产策略。结果表明，玉米田养鹅处理（RGC-E）玉米行粒数、穗粒重和产量显著低于对照（P<0.05），RGC-E处理穗粒重与百粒重的相关系数比对照CK低0.453，穗粒重与穗行数的相关系数比CK高0.279，“玉米田养鹅”处理对穗粒重与穗行数、百粒重之间的相关关系产生明显影响。CK处理的百粒重通过行粒数对产量的正向间接作用最大，间接通径系数为0.475，RGC-E处理的穗行数通过行粒数对产量的正向间接作用最大，间接通径系数为0.301。因此，RGC-E处理下的玉米产量构成因子的作用发生变化，在继续提高行粒数的基础上，通过提高玉米穗行数的遗传力来增加玉米产量。

The factors influencing maize yield under different production modes were compared and analyzed, to develop the strategy of increasing maize yield under the mode of "raising geese in maize field". The results showed that kernel number per row, grain weight per ear and yield of RGC-E treatment were significantly lower than those of the control (P<0.05). The correlation coefficient between grain weight and hundred grain weight of RGC-E was 0.453 lower than that of the CK, the correlation coefficient between grain weight and row number was 0.279 higher than CK, and the correlation between grain weight, row number and hundred grain weight was significantly affected by the RGC-E measures; The positive indirect effect of hundred grain weight on yield is the largest through kernel number per row in the CK (indirect path coefficient was 0.475), but the positive indirect effect of row number on yield is the largest through kernel number per row in the RGC-E(indirect path coefficient was 0.301). Therefore, the role of factors of maize yield components changed in the yield components, the heritability of row number should be enhanced to increased maize yield based on increasing of the kernel number in the future.

吉林省农业科技创新工程项目（CXGC2018ZY026，CXGC 2017ZD012）