A bumper wheat harvest is anticipated [expected] this year.

今年小麦可望获得丰收。

《新英汉大辞典》

Moreover, after the pampas suffered a severe drought last year, they are now enjoying a bumper harvest.

再者，去年彭巴草原发生严重干旱后，他们现在正享受农产丰收。

youdao

The output of grain for the whole year is expected to have another bumper harvest.

全年粮食产量有望再获丰收。

youdao

Food rations are now being distributed in two-month instalments though some say that is because this year's bumper grain harvest has swollen stocks after two years of drought.

ECONOMIST: Iraq

The company's managing director in Spain and Italy, Jose Maria Collantes, estimates that the Spanish olive harvest will be around 50% of what it was last year - and last year was a bumper crop.

BBC: Spain's bumper olive years come to bitter end