Measurements of leaf area index using optical method (IAI-2000) in oil palm plantation: accuracy and limitation assessment by Awal, Md Abdul, Wan Ismail, Wan Ishak, Endan, Johari, Harun, Mohd Haniff

“…The LAI by the Zigzag method was 11.6% less than the LAI by the "one above and four below" technique and 5.7% less than the LAI by the "one above and eight below" technique. The LAI obtained I7y the "one above eight below" technique was 6.2% less than the LAI obtained with the "one abovefour below" technique. …”
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