Optimal design of flow rate in drip irrigation system to enhance the tomato cultivation

摘要

Tomato is the second most important vegetable crop next to potato. As far as conservation of soil and water is concerned, drip irrigation offers the most practical and effective alternative to regular surface irrigation among all the irrigation technique known today in the world. Researchers throughout the world are kin to obtain the optimal flow rate through drip irrigation for overall development of crop. In this study, attempt has been made to analysis the growth rate and yield of tomato plant atvarious flow rate of drip irrigation, and to determine the effect of fertigation through drip irrigation on growth and yield of tomato. In this study "Samartha Fl hybrid" variety of tomato seed was selected and cultivated over the farm size of 6*5 m2. The selected farm area was divided into two sections i.e. fertigation section and non-fertigation section. Three rows having ten plants in each row was transplanted in both sections. Growth of tomato plants in term of height and canopy was measured and compared with different flow rates. The average increment in the height of tomato plants at flow rate of 2 L/hr, 4 L/hr and 8 L/hr were estimated as 68%, 60% and 52% respectively. Yield of tomato in terms of fruits was estimated for three different flow rates of 2 L/hr, 4 L/hr and 8 L/hr. The yield of tomato is optimal when drip irrigation with 2 litres per second has been used for irrigating the farm land. Significant effect of fertigation through drip irrigation has been found on growth and yield of tomato plants.