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Title: Modelling the effect of some operational parameters on grain loss in mechanised rice harvesting: a case study in Malaysian paddy fields

Authors: Nor Azi Asminda Johari; Darius El Pebrian; Shamilah Ahmad Mokhtor; Rohaida Mohammad; Amir Hamzah Ahmad

Addresses: Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia ' Tropical Agro Biomass Research Group, Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia; Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA Melaka, Jasin, 77300 Merlimau, Melaka, Malaysia ' Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA Melaka, Jasin, 77300 Merlimau, Melaka, Malaysia ' Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA Melaka, Jasin, 77300 Merlimau, Melaka, Malaysia ' Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA Melaka, Jasin, 77300 Merlimau, Melaka, Malaysia

Abstract: Excessive grain loss is still a persistence problem in mechanised rice harvesting using combine harvester in Malaysian paddy fields. Therefore, this study was conducted to develop a model for predicting the effect of some operational parameters on grain loss during mechanised harvesting operation. Three operational parameters that always associated with grain loss were measured through direct field measurements on the daily harvesting operations in the sampled rice granaries. The measured parameters included field speed of combine harvester, grain moisture, and soil moisture contents. Regression and correlation analyses were employed to develop the model estimation. The results of the predictive model exposed the fitted model with a strong relationship between associated variables and established the measured parameters to determine the grain loss. The findings would be beneficial in assisting the rice farmers to predict grain loss during harvesting and minimise excessive grain loss in mechanised harvesting operations in Malaysia.

Keywords: mechanised harvesting; grain loss; combine harvester.

DOI: 10.1504/IJARGE.2020.107062

International Journal of Agricultural Resources, Governance and Ecology, 2020 Vol.16 No.1, pp.23 - 32

Received: 28 Mar 2019
Accepted: 03 Sep 2019

Published online: 29 Apr 2020 *

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