Indian Agricultural Statistics Research Institute

About: Indian Agricultural Statistics Research Institute is a facility organization based out in New Delhi, India. It is known for research contribution in the topics: Population & Small area estimation. The organization has 454 authors who have published 870 publications receiving 7987 citations.

A thurstone-type model for paired comparisons with unequal numbers of repetitions

Abstract: In paired comparison experiments t objects are ranked for any particular characteristic x by offering the objects in all possible pairs to a judge, each pair being repeated a certain number of times. The judge is to express his preference by giving a score 1 to the preferred object and a score 0 to the non-preferred object. A modification of Thurstone Model for analysis of data from such experiments has been given by Mosteller ‘1951a,b,c’. In this paper angular transformation is used to generalize Mosteller1s model in order to make the preference proportions independent and incidentally ensure homo-scedastlcity of variances and correlations and additivlty of scale in the subjective continuum for the stimuli." The model is extended to unequal numbers of repetitions of the pairs. Using the model two different types of treatment ratings are obtained along with the respective standard errors for moderately large numbers of repetitions, one setting the location parameter S, "0 and the other using the constrain...

Forecast of Sugarcane Yield Using Eye Estimate Alongwith Plant Characters

Abstract: The present study proposes to include farmers' appraisal (eye estimate) as one of the variables in the models alongwith plant characters. This will reduce the number of plant character in the model, thus reducing the cost on data collection. This has been demonstrated through regression and probability models.

Enhancement of Land and Water Productivity through Participatory Rural Appraisal

Abstract: Participatory rural appraisal (PRA) is a technique which gives more emphasis on indigenous knowledge enable locals to do their own appraisal, analysis and planning in the participatory mode. In this study, for the problem identification, problem-solution and preparation of village development plan SWOT analysis and PRA tools was used at Bhargawan village of Satna district, India. The rank-based quotient (RBQ) was calculated in order to prioritize the identified problems and their solution was given using problem-solution tree technique. Findings indicated low land and water productivity, unavailability of irrigation water, aira partha, Soil sickness with Fusarium, mismanagement of animal waste and crop residue as constraints faced by the farmers of village. Constraints identified were categorized as problems arising out of gaps in research/extension activities in various agriculture and allied sectors. Based on the results and necessity of the villagers, scope for research/extension and village agriculture development programme/policy implications was made. Village agriculture development plan (VADP) of Bhargawan village will help the policymaker/NGOs/State govt. in the planning and management of soil, water and agriculture resources.

Non-sampling Errors

Abstract: In the previous chapters, we have seen that despite using the appropriate sampling methods and other measures like estimators for estimating the population parameters, viz., mean, total, proportions, etc., there is a difference between the estimate and the true value of the parameter.