Bell Pepper*they hate nitrogen/commercial fertilizer* Wait til plants flower before fertilizing. Then spray leaves w/ 1 tsp Epsom salt in 1 qt water (peppers need Magnesium to set fruit). Peppers also enjoy small amounts of potassium (wood ashes)
These are great tricks that WORK to reduce the bitterness in cucumbers! If you grow your own or buy them from the grocery store,you have got to do these! Rubbing the cucumber end to the whole veggie is the best, but the other tricks are just as great!