I want the procedures of how to take care my onions field
crop management involves fertilizer application , pest and disease control and weeds management.
for fertilizer application this will depend on your soil test analysis results for you to be able to develop a fertilizer program . However, Phosphorous will be required during the crop establishment stage, Nitrogen during vegetative stage and potassium at flowering.
ensure you maintain a weed free environment for your crops. in regards to pest and disease do preventive measures to prevent the infestation.