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The Indian Institute of Soil and Water Conservation (IISWC) and its Research Centres have developed many successful model watershed projects in India in the past and implemented many Soil and Water Conservation (SWC) technologies for sustainable watershed management. While many evaluation studies were conducted on these projects in the past, there has been no assessment of the post-adoption status of the SWC technologies over a longer period. It was imperative to appraise the behaviour of the farmers with regard to the continuance or discontinuance of the technologies adopted, diffusion or infusion that took place and technological gaps that occurred in due course of time in the post watershed programme. Therefore, it was realized that the postadoption behaviour of beneficiary farmers who have adopted different soil and water conservation technologies for watershed management projects should be studied in detail. The research study was initiated in 2012 as a core project at Vasad as the lead Centre along with IISWC headquarter Dehradun, and Centres Agra, Bellary, Chandigarh, Datia, Kota & Ooty, with the specific objectives of the study to measure the extent of post-adoption behaviour (continued-adoption, discontinuance, technological gap, diffusion and infusion) of farmers towards the adopted SWC technologies of watershed management. In the present study various indices regarding continued adoption, dis-adoption (discontinuance), technological gap, diffusion, infusion regarding soil and water conservation technologies for watershed management were developed for measurement of post-adoption behaviour of farmers. It was revealed that a little less than three-fourth (73%) of SWC technologies continued to be adopted and more than onefourth (27%) were discontinued by farmers. Out of the total continue adopted SWC technologies by farmers, a little less than onefifth (19%) of technologies continued to be adopted with a technological gap. More than one-fourth (28%) of SWC technologies were also diffused to other farmers' fields in nearby villages and on an average 1.2 technologies were also infused into the farmers' fields from outside by their own efforts in the watersheds developed by the IISWC and its Centres.

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The effectiveness of an extension system referred to its ability to meet the farmer needs in providing the new technology which suits to their conditions and results in better production. Recently the demand for information on agricultural practices and technology among the farmers is increasing day by day but fulfilment of these demands exclusively by public agricultural extension system is limited. To address this challenge, information communication technology (ICT) has the immense role in supplementing the extension system. Among the ICT tools, mobile phone, because of its affordability, accessibility, minimum skill requirement, widespread network etc., has emerged as important tool for information and knowledge dissemination to the smallholder and marginal farmers. But it is necessary to study how effective they are in achieving the respective objectives.The present investigation was conducted to study the effectiveness of mKRISHI® PAWS (Personalised Advisory on Water and Soil) in Dehradun district of Uttarakhand state. An ex-post facto research design was used for this study. Total 136 messages were sent to the respondents. The data was collected from 240 beneficiary farmers of the north-western Himalayan region. The effectiveness of the mKRISHI® PAWS in technology advisory and delivery services were measured by developing an effectiveness index for the purpose. Results showed that 93.8% of farmers perceive that quality of information regarding the latest NRM technologies in soil and water conservation was excellent and 83.75% of the farmers felt that the information regarding the latest NRM technologies in soil and water conservation was appropriate to their condition. The study revealed that the extension services delivered by mKRISHI® PAWS were found to be highly effective by majority of the farmers. 34.58% farmers perceived that the mKRISHI® PAWS was very highly effective as a mean of getting their information needs.

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