The study of real adoption impact (RAI) measure of technologies on tomato production at farmers' level revealed that there was a positive and significant relationship between yield and the values of RAI which was calculated utilizing the degrees of deviations between standard recommendations for tomato and their level of application at farmers' field. This study implies that the higher value of RAI resulting from more proper adoption of tomato technologies would give higher yield. It was found from the estimated model that 1 percent higher value of RAI would give more than 4 percent greater tomato yield. From this model it was also found that the expected yield gap and observed yield gap of tomato were much greater than that of estimated yield and observed yield indicating a scope to increase the yield of tomato. These results exclusively indicate to a situation where tomato farmers were in complete knowledge of the technologies but they were not using recommended doses of inputs and also management practices properly and completely in production system. As a result they could not reap the yield like research station yield of 80 t/ha. The farmers were getting about 1/4th yield on an average and made a sharp and big yield gap of tomato between on station and farmers' field. It calls for an intensive extension work focused on tomato technologies and timely support with required inputs with a view to minimize the yield gap for national interest. Bangladesh J. Sci. Ind. Res. 42(1), 15-28, 2007

SUMMARY :The study was conducted in two districts of Assam viz., Jorhat and Golaghat in order to assess the extent of adoption and constraints faced by the farmers in adoption of water management technologies. A purposive cum proportionate random sampling design was followed to select the respondents. All total 70 farmers trained under Scaling up of Water Productivity in Agriculture (SWPA) training programme were selected as respondents from the two districts. The study revealed that the majority of the farmers were under young age category (Below 35 years) with education up to High school level. The average land holding and annual income of the farmers were 1.50 ha and Rs. 44,000, respectively. The extent of social participation of majority of the respondents was low and more than 40 per cent farmers had regular extension contact. The extent of adoption of water management technologies were medium level for majority farmers. Size of operational holding, extent of social participation, extension contact, annual farm income were found to have a strong positive significant relationship with extent of adoption. Major problems faced by the respondents were lack of proper irrigation facilities, lack of follow-up measures, lack of proper practical demonstration, low income level, high cost of irrigation and difficulty in application of irrigation due to land fragmentation, high cost of inputs and unavailability of seeds and fertilizers in time. Proper intervention should be implemented to solve these problems in order to step up the exploitation of the full potential of these water management technologies. How to cite this article :

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