Journal ID : AMA-22-11-2021-10866
[ This article belongs to Special Issue 2021 ]
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Title : Soil Compaction Effects of Large and Mini Combine Harvesters in a Paddy Cultivation Area in MADA

Abstract :

The most effective mechanization technique for harvesting yield in rice field cultivation is the use of a combine harvester. A variety of combine harvesters are used in the Muda Agricultural Development Authority (MADA) region, with the majority of them being locally modified large combine harvesters (CB). Concerns about soil compaction (SC) persuade the local government to provide a mini combine harvester (CM) as an alternative machinery. However, the extent of soil damage caused by the varying weight and contact pressure of combine harvesters has not been clearly reported. As a result, the goal of this study was to compare the SC effect of two types of combine harvesters used in the MADA region: CB and CM. The test plots were chosen from a total of 2.6 ha in Tunjang, Wilayah II – Jitra, Kedah, and were planted in silty clay soil texture during both wet and dry seasons. Over 10,000 data points on SC were collected using a soil penetrologger. Normalized SC values shows better approach in identification of drastic change of SC at specific soil depth. The SC also shows no significant different on straight vs. cornering both for CB and CM. At a critical soil depth of >30 cm, it was discovered that the compaction caused by the CB was 7 to 10% greater than that caused by the CM. However, there was no noticeable difference in SC effect at the top soil layer (0-30 cm) from different type of combine harvester. Thus, the long-term impact of CB deployment must be considered due to changes in farming techniques and climate variability, such as soil water content during the monsoon season.

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