According to the spokesman of agriculture department, growers can obtain higher production by taking care of vegetables grown under tunnels. Timely irrigation and fertilization must be ensured in tunnel farming. If possible drip irrigation should be used for watering the vegetables. After spraying and fertilizing, the openings of the tunnel must not be closed in order to prevent the accumulation of harmful gas inside the tunnel. To avoid moisture development inside the tunnel, both the openings of tunnel must be kept open from morning 9 am till 4pm. If possible exhaust fans should be used to promote air circulation.
Optimum temperature range of 15-30◦C must be maintained inside the tunnel. He further added that vine vegetables must be pollinated manually as they consist of male and female flowers separately. This process should be continue till the removal of plastic covering from the tunnel. As after the removal of plastic cover, pollination is carried out by bees. Farmers can earn more profit from vegetables produced under the tunnel technology. So special care must be given to the maintenance of vegetables.