Evaluation of four mechanized harvest techniques for lentil and chickpea [tractor rear-mounted mower; self-propelled mower; combine harvester; hand pulling]
1989
Hussein, M.A.Y.
A study was conducted to evaluate four lentil and chickpea harvesting techniques: tractor rear-mounted mower; self-propelled mower; combine harvest and hand pulling. Two cultivation methods were used: leaving the soil with no additional operations (non rolling) and rolling the soil, using a mechanical roller to push down the stones and to break up the clods. Local lentil, winter planted UJC84 and a spring planted local chickpea were the crops and cultivars used in the study. Grain and straw losses under the harvesting techniques were measured. Randomized complete block design was employed with three replications. Yield was estimated and percentages of losses for the different treatments were calculated. Soil moisture measurements were taken during the growing season. The results indicated that straw and grain yields natural plant height, actual plant height and lowest pod height were not different under nonrolled and rolled soil. However, soil moisture was not affected by rolling. Percentage loss was lower in most cases under rolled soil. However, there were significant differences in losses among the harvesting methods. Hand pulling resulted in significantly lowest followed by rear-mounted tractor mower, then self-propelled mower, and finally grain combine harvester. Economic evaluation indicated that the least expensive was the use of self-propelled mower, followed by tractor rear-mounted mower, then the combine harvester, and finally the hand pulling. The highest net profit was obtained by the use of rear-mounted mower, followed by self-propelled mower, then the hand pulling and the lowest net profitable method was by the combine harvester, taken into consideration the lost income due to non-recoverable grain and straw losses
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