The antonyms for the phrase "raise crops" can be "destroy crops," "neglect land," "abandon farming," and "neglect cultivation." When farmers ignore their crops, do not take care of the land, and abandon their field, their efforts get wasted, and they lose their yield. To raise successful crops, the farmers have to put constant effort and give proper time in cultivating the land, planting the seeds, grazing properly, managing soil health, preventing plant diseases and pests, and timely harvesting. Neglecting such essential activities can result in poor crop yield or loss of crops, leading to negative consequences for the farmers' livelihood and the overall food sector.