WHY IS THE FREQUENCY OF IRRIGATION HIGHER IN SUMMER Share with your friends Share 6 Mamta answered this The frequency of irrigation is much higher in summers due to the water loss from transpiration, which is much greater as compared to other seasons. 23 View Full Answer Abhinav A L answered this There's more water loss due to evaporation and transpiration since it's warmer. You also get more productivity because of the sunlight, which means water is used to make carbohydrates. 9