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ThesisItem Open Access MODIFICATION AND ERGONOMIC EVALUATION OF OKRA CUTTER- HOLDER(MPKV, Rahuri, 2023) Hukare Bhushan Manohar; Nalwade, S.M.Traditionally okra pods are harvested by hand picking or using cutting tool. The okra pods have thorny bristles cause inflammation to the skin of workers if harvested by bare hands. In severe situations, people skin has experienced itching, blisters or allergic responses on exposure to the pods for an extended period of time during a harvest. The higher productivity with less stress and physiological costs could be achieved by the ergonomically modified agricultural tools. The various tools developed by earlier researchers were tested ergonomically. Straight blade okra cutter, curve blade okra cutter and old okra cutter-holder were tested in the laboratory and on the field. The results revealed that the okra needed to hold while harvesting by using these cutters as well as required more pressure to cut the okra. Moreover, the okra cutters were unable to snap mature and large okra. In order to reduce the aforementioned issues, the design of okra cutter-holder was modified, to enable harvest of any size of okra without touching the okra pods. The designed tool along with the conventional straight blade okra plucker, curve blade okra cutter and old okra cutter-holder were compared through laboratory as well as field tests.ThesisItem Open Access DEVELOPMENT AND PERFORMANCE EVALUATION OF POWER OPERATED MAIZE DEHUSKER CUM SHELLER(MPKV, Rahuri, 2023) Kinge Akshay Ravindra; Bastewad, B.T.Maize (Zea mays L.) is grown all the three seasons throughout the India. India’s rank is seventh in world maize production Maharashtra’s rank is fourth in India’s maize production. The average productivity of maize in India is 2.43 t.ha-1. The area under maize cultivation and production of maize in India is continuously increases. Traditionally maize was dehusked and shelled manually which are very tedious and drudgeries and also labour intensive. High capacity power operated maize sheller and whole crop maize sheller are available in market but they are costly and in India more than 75 per cent farmers belong to small and marginal category. The present study was undertaken with the objectives of development of power operated maize dehusker cum sheller (operated by 2 HP electric motor) and study of performance evaluation of developed machine. Engineering properties of maize variety Rajarshi and cost estimation of developed machine also been conducted in this study. Design calculations of various components of this machine are completed according to standard references and I. S. codes. The design of machine was made by AutoCAD software. Fabrication and performance evaluation of machine was carried out at AICRP on FIM Dr.. ASCAET MPKV Rahuri. The principle of dehusking and shelling is shearing and impact action between concave and dehusking cum shelling cylinder.ThesisItem Open Access DEVELOPMENT OF BASIN SEEDER WITH WATERCOURSE ATTACHMENT(MPKV, Rahuri, 2023) Naik Shivam Hanmant; Kadam, P.B.Onion (Allium cepa), also known as bulb onion, belongs to the Alliceae family. Various agronomic practices are employed in the cultivation of onions, including ploughing, harrowing, constructing ridges and furrows, as well as the creation of basins and watercourse channels. There are four primary planting techniques used for onions: raising seedlings in a nursery and then transplanting them into the field, planting bulbs directly in the field, employing the broadcasting technique and planting by sets. In addition, the market offers a variety of onion sowing machines, such as precision vacuum seeders, drum seeders, and transplanters. Typically, basin formation, sowing, and watercourse channel preparation are separate operations in the field. However, these separate operations have certain drawbacks, including being labor-intensive, expensive, time-consuming, and potentially harmful to the soil due to the increased number of tractor passes. As a result, there was a recognized need to develop a basin seeder with a watercourse attachment capable of performing three critical operations like basin listing, seeding and watercourse channel creation in a single pass of a tractor.ThesisItem Open Access EXPERIMENTAL STUDY AND DISCRETE ELEMENT MODELLING OF SOIL- RIDGER INTERACTIONS(MPKV, Rahuri, 2023) Shinde Saurav Gokul; Walunj, A.A.Soil tillage, a vital component of agricultural operations, profoundly influences soil properties and crop yield. Mechanized soil manipulation methods, such as tillage, have emerged as crucial tools in achieving enhanced crop productivity. With a focus on furrow irrigation, the investigation underscores the benefits of ridger implement, demonstrating the role of ridge and furrow planting in optimizing soil moisture and temperature conditions, thereby elevating crop output and water use efficiency. This study presents an in-depth investigation into the interactions between soil and ridger implements through both experimental analysis and Discrete Element Method (DEM) simulations.ThesisItem Open Access Development of hand operated medicinal nut sheller.(MPKV, Rahuri, 2013) Pawar Ashish Dattatray; Lende, A.B.ThesisItem Open Access INVESTIGATION ON AUTONOMOUS NAVIGATION OF ROBOTIC SPRAYER FOR MANGO AND GUAVA ORCHARDS(MPKV, Rahuri, 2023) Raut Punam Dilip; Nalawade, S.M.In agriculture, one of the most important activities are the application of fungicides, herbicides, and insecticides by spraying operation. For the orchard and vineyard, it was difficult to apply spray on the whole area of the plant because of the shape and size change from plant to plant. It was very difficult in old times when no proper sprayers design for orchard spraying. Precision spraying is a method used to reduce the losses during pesticides application, reducing chemical residues in the soil.ThesisItem Open Access DEVELOPMENT AND PERFORMANCE EVALUATION OF SIDE MOUNTED RIDGING TOOL FOR BASIN LISTER TO PREPARE WATERCOURSE FOR IRRIGATION(MPKV, Rahuri, 2023) Pawar Chetan Gulabrao; Kadam, P.B.The performance evaluation of the basin lister after attaching it with the developed ridger was carried out with various trials to determine its performance, field characteristics like soil moisture content and bulk density were determined prior to every test. The average moisture content and bulk density were observed as 13.36% and 1.48 gcc-1 respectively. The average wheel slippage measured was observed as 4.5% throughout the trials. During the performance evaluation of basin lister attached with ridger attachment the effective field capacity was 0.672 hah-1 and theoretical field capacity was 0.85 hah-1. The field efficiency was observed to be 80.28% and average fuel consumption was recorded as 5.17 lh-1.ThesisItem Open Access DEVELOPMENT AND PERFORMANCE EVALUATION OF POWER OPERATED GROUNDNUT DECORTICATOR CUM GRADER(MPKV, Rahuri, 2023) Shinde Vijay Sudam; Bastewad, T.B.Groundnut (Arachis hypogea L.) is a peculiar and significant legume oil seed crop in India. Its shelling is done either manually by hand, pedal and power operated decorticators. Hand shelling of groundnut gives the higher whole kernel count but it is a slow, time consuming and labour demanding and have no facility to separate kernels. Whereas some power operated decorticators have these facilities but they are costlier and also, they are huge in size which is not affordable for small and marginal farmers also they are not provided with grading mechanism. So, the power operated groundnut decorticator cum grader was developed in the department of Farm Machinery and Power Engineering, Dr A.S.C.A.E.T, Rahuri.ThesisItem Open Access USABILITY OF PHULE-SAM MOBILE APPLICATION THROUGH USER SURVEY(MPKV, Rahuri, 2023) Tajbire Shrikant Shivaji; Parcharne, M.M.Phule-SAM application is ‘Service for Agricultural Mechanization. App was developed by MPKV, Rahuri under “Centre for Advanced Agricultural Science and Technology for Climate Smart Agriculture and Water Management (CAAST-CSAWM)” in 2021. The survey of mobile application available mechanization solution networks i.e. service provider viz. custom hiring, repairs and maintenance and manufacturer of agricultural implements. The information of crop specific and operation wise agricultural implements available with manufacturer. In this application multilingual facility (Marathi and English) is provided. App is available at MPKV website and Google play store. The present study was carried out in Hingoli district of Maharashtra. It is described as the extent to which agricultural equipment and machinery are used in various field operations such as tillage, seed bed preparation, sowing/planting, interculture, harvesting and transportation. Farmers were interviewed personally using an application and they were asked about use of each and every farm technology. The survey is conducted with the help of ‘Phule-SAM’ application. The available implements or machinery with farmers was recorded in the application according to power sources as like hand tools, animal drawn, tractor drawn and self-propelled. The data regarding the mechanization gap was collected with the help of developed ‘Phule-SAM’ app by personal interview. The farmers were interviewed generally at their homes or at village area and on their farms. The survey conducted of 321 farmers & 69 service providers with the help of ‘Phule-SAM’ application. The requirement of a smart phone to operate mobile applications was a major problem for farmers. Because they are illiterate and unfamiliar with the new technology, some farmers reported that using smartphones was tough for them. Survey results revealed that, out of 305 farmers, 208 farmers were satisfied by “Phule-SAM” mobile application and 97 were not satisfied with this application.i.e.68 per cent participants reported that application is useful. However, survey results of service providers revealed that, among 69 service providers, 54 reported that application is useful i.e.78 per cent and 15 reported that application is not useful. The data regarding the mechanization gap was collected with the help that farmers which are not having implements, they can easily hire it by this mobile application.
