Purohit, R. C.Jamrey, Pravin Kumar2017-06-272017-06-272013Jamrey and purohit, 2013http://krishikosh.egranth.ac.in/handle/1/5810023480Studies on Drip Fertigation System in OkraOkra or lady’s finger (Abelmoschus esculentus) is a nutritious vegetable. It is a cash crop and fetches higher price during kharif season when other vegetables are short in supply in the market. Drip fertigation has become an attractive method of fertilization in modern intensive agriculture systems due to its higher fertilizer application efficiency and ease of use in all weather condition. Considering the important aspect study was undertaken to examine the growth and yield using different irrigation and fertigation schedules by drip irrigation and to suggest the most efficient fertigation schedule that would attain the highest growth and yield of the crop. The performance evaluation of drip irrigation systems under study was found to be excellent as the uniformity coefficient (CU), distribution uniformity (DU), distribution characteristics (DC) and emission uniformity (EU) in all the systems were in agreement with the design criteria. The field water use efficiency (FWUE) was found to be increased compared to flood and drip treatments. It was highest under T7 (75% RDF through fertigation in equal splits at 5 days interval) (353.48 kg/ha-cm) as against a minimum of flood and drip treatments. The fertilizer use efficiency (FUE) was higher in lower level of fertilizer application (50 per cent) as compared to higher level of fertilizer (100 per cent). It was highest under T10 (50% RDF through fertigation in equal splits at 5 days interval) i.e. 264.61 kg yield/kg of nutrient as against a minimum of flood and drip treatments. From economical point (B:C ratio) of view, the choice of the preference of different treatments was observed as flood, drip and drip fertigation. The highest cost of production (Rs. 1, 29, 301.8) was obtained in T3 (100% RDF through fertigation in equal splits at 3 days interval) and the maximum income from produce (Rs. 4, 09, 990.5), and net income (Rs. 2, 86, 476.0) were obtained in T7 (75% RDF through fertigation in equal splits at 5 days interval) and benefit cost ratio (3.33) was obtained in T8 (75% RDF through fertigation in equal splits at 7 days interval).ennullThesis