Comparative Field and Economic Evaluation of Baler for Baling Paddy Straw

Abstract

A study was conducted to evaluate performance of paddy straw baler on loose paddy straw (system A), after stubble shaver operation (system B) and after stubble shaver along with rake operation (system C). The number of bales per ha and density of bales increased with increase in feed rate of paddy straw from 1.12 to 4.22 t.h-1 and highest feed rate was observed when stubble shaver and rake were operated prior to baler (system C). The field capacities of system A, B and C were 0.35, 0.40 and 0.53 ha.h-1 and the number of bales per ha varied from 126-149, 266-292, 298-332 respectively. The mean fuel consumption for system A, B and C were 5.0, 10.0 and 12.0 l.h-1 respectively. The mean percentage increase in density of bales, number of bales and productivity of baler were more for system C as compared with system A and B. The benefit cost ratio was found to be maximum for system C as 1.16:1 and for systems B and A were 1.06:1 and 0.85:1 respectively. The net savings per ha were Rs. 471.05 and 1537.59 with system B and C respectively.

Studija je izvedena radi ocene karakteristika balera slame pirinča. Broj i sabijenost bala se povećala sa povećanjem prinosa slame. Poljski kapacitet i broj bala varirali su u intervalima od 126-149, 266-292, 298-332, redom. Srednja potrošnja goriva za sisteme A, B i C bila je 5.0, 10.0 i 12.0 l.h-1, redom. Maksimalan odnos troškova i prihoda bio je kod sistema C i iznosio 1.16:1.