Cucumbers grow fast and will leave you with piles of cucumbers by the end of the season. If you really want a bountiful harvest this year, you should give your plants Epsom salt.
Mix 1/2 tablespoon of Epsom salt with half a gallon of water and water your plants as usual. You can also transfer it into a spray bottle and spray it over your plant's foliage.
A single dose will promote healthy growth and more cucumbers to harvest. Water it during the growing season to ensure you always have new fruit to pick.