Department of Soil and Environment, Agriculturial college and Research Institute, Madurai - 625 104, India.
The right combination of water and nutrients is the key for increasing the yield and quality of produce. The availability of N, P and K nutrient was found to be higher in root zone area of drip fertigated plot. Nitrogen and potassium moved laterally from point source up to 15 cm and vertically up to 15–25 cm and P moved 5 cm both laterally and vertically and thereafter dwindled. Fertigation frequency enables to reduce the concentration of immobile elements such as P, K and trace elements in irrigation water. Fertigation of nutrients significantly increased saving of fertilizer nutrients up to 40 per cent without affecting the yield of crops compared to the conventional method of nutrient application.
