这个省的粮食产量逐年增加。

[误] The grain output in this province has increased year after year.

[正] The grain output in this province has increased year by year.

注：year after year(年复一年地)和 year by year(逐年地)的区别在于：后者分别看待年份;而前者集中看待年份(含“年年如此”甚至有“长此以往”之义。)根据原意，应选用 year by year。