EFFECT OF PADDY HARVESTING METHODS ON RICE QUALITY AND HEAD RICE RECOVERY

Tanveer Ahmad, Zulfiqar Ali
2016 unpublished
Mechanization of paddy harvesting is on the rise in Pakistan by the introduction of combine harvesters. However, milling quality in terms of head rice recovery has been low due to paddy harvesting at higher moisture content by combine harvesters. Due to shortage of combine harvester, farmers have no choice, but to harvest their paddy crop even at higher moisture content when a combine harvester is available in a village. The objective of the study was to determine the effect of prevailing
more » ... of prevailing harvesting methods and different crop maturity levels on milling quality of Super Basmati rice. In this study Super Basmati rice variety was harvested at 0-5 green grains maturity levels (known as harvesting stages) by manual harvesting and threshing, head feeding combine harvester, and conventional combine harvester. Paddy samples from threshed or combine harvested paddy were sun dried, cleaned and milled using laboratory rice milling equipment. Data on milling yield, head rice and broken rice were collected and analyzed using MSTAT statistical package. The effect of harvesting methods was statistically significant at 5 % probability level on milling yield in terms of head rice recovery and broken rice. The mean value of head rice recovery (49.5 %) of manual harvesting and threshing method was higher than conventional combine harvester (44.9 %) and head feeding combine harvester (46.5 %). Due to shortage of manual labour for harvesting rice, a head-feeding combine harvester is recommended for harvesting Super Basmati rice in Pakistan.
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