Fertilizer programmes starting early during establishment and vegetative growth are needed to ensure nutrients don’t limit onion bulb quality. A healthy crop is one that is free from pests and diseases, and at the same time that meets quality and yield demands. Many factors influencing the health of onions and garlic crops are within control of the growers.
Onions and garlic are also very susceptible to foliar diseases and bulb rots. Bacterial related diseases reduce bulb quality. Thus, soil, fertilizers and water management practices are essential to control, for example, rot problems. A balanced nutrition programme can help grow an strong and healthy crop therefore protecting it from pests and diseases susceptibility, thus increasing shelf life and quality the product.