FIELD EVALUATION OF SELF PROPELLED POWER PADDY WEEDER
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Date
2021
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Dr.RPCAU, Pusa
Abstract
The experiment was comprising of performance evaluation of power paddy weeder in local soil of Pusa at three moisture levels of soil and two stages of weed height.
The performance of machine was compared with the manual weeding method as control treatment. The field capacity of machine was maximum (0.046 ha/h) in treatment T3 having dry soil. However, in treatment T2 (Wet soil) and T1 (Water inundated), the field capacities were 0.42 and 0.40 hectare per hour, respectively. The maximum field efficiency was reported to be 71.42 % in treatment T1 and minimum 67.64 % in treatment T3.
Among all treatments, control treatment (T4) had registered maximum weeding efficiency both at 15 and 30 days after transplanting with values (98.15%) and (97.62%), respectively. Among mechanical weeding operations, treatment T1 had maximum weeding efficiency (78.68%) at 30 days after transplanting and the minimum in treatment T3 (74.29%) at the same time interval.
The performance index of machine was reported maximum (185.50) in treatment T3 and minimum was (168.04) in treatment T1, respectively at 30 days after transplanting.
The plots with mechanical weeding had edge over manual weeding method in respect of plant growth for all the treatments. The treatment T1 had registered highest plant growth (88.90 cm) at 60 days after first weeding. However, in treatment T2 and T3 plant heights were at par and ranging between 86.20 cm to 86.60 cm at the same time interval after first weeding, i.e. 60 days.
In relation to the economics of operation, mechanical weeding for all the treatments were much economical than the hand weeding by khurpi, i.e. treatment T4. A saving of Rs.10137.60 was reported in treatment T3 followed by Rs.9402.32 in treatment T2and Rs.8947.32 in treatment T1 on per hectare basis in comparison to treatment T4 as the control treatment and farmers practice of weeding in paddy.
All the crop and economic parameters had proved the superiority of power paddy weeder over hand weeding method for weeding in paddy crop.