There should be adequate and timely supply of water which is an important aspect for good production. It is very critical to irrigate the crop for good growth, flowering, fruit setting and fruit development. In plains the crop needs to be irrigated in 3 or 4 days during summers and every 7 to 12 days during winters. The brinjal field should be irrigated regularly at regular intervals to keep the soil moist during frosty days. The early phase requires copious irrigation. If the plant is irrigated excessive during seedling stage, it might cause damping off disease. If there is stagnant water during the vegetative phase, it leads to soil borne diseases that result in poor growth.Drip irrigation technology is widely used as it increases the irrigation potential by optimizing available irrigation water. In case of drip irrigation, the crop and field is irrigated in interval of almost 2 days. Drip irrigation is ideal for brinjal cultivation because as it fulfils its water requirement efficiently with drip,. During initial 70 days, the crop requires adequate moisture level and thus requires almost 0.75 L of water at initial stage and 3.25 L of water during peak growth stage. There are many advantages of drip irrigation like it saves water, improve fertilizer application efficiency and produce quality.
Brinjal is a long duration crop and in order to achieve high yield with good productivity, it is very important to provide appropriate nutrients in form of both organic manure and chemical fertilizers.The following can be supplemented as part of nutrient management.