Developing Scientific Method to Calculate the Surface Moisture of Fresh Green Tea Leaves on Wet Days
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Date
2020
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Publisher
Uva Wellassa University of Sri Lanka
Abstract
Plucking is the most labor-intensive field operation in tea plantations. Laborers are paid
according to the kilograms of shoots plucked by the workers. Interview with workers as
well as management has been used to deduct the weight of green tea leaf of 1 kg per
plucking round only when there is rain during the plucking time. This is happened due to
the water content in the green leaf or leaf carrying bags. Although this practice is
approved by the estate level workers union, any estate does not have any systematic
methodology or governing law/ regulation to demonstrate that this deduction is
appropriately justifiable. Moreover, the pluckers have some doubts related to the
deduction of the weight of leaf plucked by them. Therefore, this study was focused on
generating and evaluating of the scientifically accepted method to determine weight
reduction of tea shoots plucked from the moisture of shoots during rainy days. NuwaraEliya Estate, Labukelle, and Tyllyrie Estate, Dikoya were selected for the study.
Secondary data of rainfall within early 5 years periods were collected from the offices of
the estates and primary rainfall data were obtained using a moisture analyzer after
artificial rainfall was applied to leaf taken from selected fields. The quantitative analysis
methods were used for data analysis including an analysis of independent and dependent
variables, hypotheses testing, correlation, and regression analysis. A regression model
was developed to calculate the surface moisture content of leaf during a rainy day. This
model can be used to calculate the amount of weight to be deducted from the weight of
tea leaf during rainy days and is only applicable to Nuwara-Eliya and Dimbula region.
Keywords: Plucking, Green leaf, Deduction of the weight of leaf, Surface moisture
content, Wet days
Description
Keywords
Agriculture, Tea Technology, Tea Industrial