Pateriya, R.NLohani, Lokesh2018-08-212018-08-212016-08http://krishikosh.egranth.ac.in/handle/1/5810066496Rotary tillage implements are now being projected as an important rotary tools that result in production of fine tilth soil, however the rotavator being in line with the tractor at the back cannot be used in orchards due to the hindrance posed by narrow space between the trees. Hence there was need of some tillage tool in offset to central line of tractor so that it can reach to the area under the tree with the tractor placed in between the rows. The offset working condition of Offset Rotavator the rotary tillage unit can easily reach the strip of soil under low trees and vegetation where tractors cannot operate because of limited height . The study was undertaken for different types of orchards to modify the sensing mechanism and examine the influence of λ – ratio, depth of cut at different orchards fields such as Mango, Pears, and Sapota with dependent parameters such as draft, fuel consumption, power consumption, mean weight diameter, field capacity, field efficiency, and residue incorporation. The modified sensing mechanism with 150 mm length and at 5 degree reduced the plant injury by 6.76, 5.25 and 5.77%. The results indicated that as the λ – ratio increases, the value of draft decreases. The maximum draft in Mango, Pears and Sapota orchard were found to be 6670.8, 9172.35 and 7749.9 N at a λ – ratio of 1.85 and depth of cut 10 cm respectively. The maximum fuel consumption for Mango, Pears and Sapota orchards were found to be 7.21 l/h at a λ – ratio of 1.11 and depth of cut 10 cm, 7.33 l/h. at λ – ratio of 1.11 and depth of cut 10 cm, 7.28 l/h. at λ – ratio of 1.11 and depth of cut 10 cm respectively. The maximum power consumption for Mango, Pears and Sapota orchards were found to be 5.08, 6.41 and 5.23 kW at λ – ratio of 1.11 and depth of cut 10 cm respectively. The maximum mean mass diameter for Mango, Pears and Sapota orchards were found to be 2.83 mm at λ – ratio of 1.11 and depth of cut 10 cm, 3.69 mm at λ – ratio of 1.11 and depth of cut 10 cm, 3.97 mm at a λ – ratio of 1.11 and depth of cut 10 cm. The maximum residue incorporation for Mango orchards, Pears orchards and Sapota orchards were found to be 94.34% at a λ – ratio of 1.85 and depth of cut 10 cm, 95.65 % at a λ – ratio of 1.85 and depth of cut 10 cm and 94.59 % at λ – ratio of 1.85 and depth of cut 10 cm respectively.ennullThesis