Acidic Soil Remediation Applied with Coffea Lignum Carbo as Soil Amendment

Abstract

The study was conducted at Cagayan State University, Sta. Maria Lal-lo Cagayan from March 28, to April
18, 2024. Generally, the study was conducted to determine the remediation mechanism of coffea
lignum carbo (CLC) in acidic soils. Specifically, the study aimed to assess the effects of coffea lignum
carbo (CLC) application on the physical (bulk density, color, and soil texture) and chemical (potential
hydrogen, organic matter, phosphorus, potassium, zinc, copper, manganese, and iron) properties of
acidic soil and to determine the chemical properties of the coffea lignum carbo. The Completely
Randomized Design (CRD) was used in the study. Ninety-six (96) polyethylene bags weighing 1 kg of
soil were used in the four (4) treatments with three (3) replications. Soil media packed in the
polyethylene bags correspond to one (1) replicate. The treatments used in the study were as follows:
Treatment 1 (Lime), Treatment 2 (30grams of CLC), Treatment 3 (50grams of CLC), and Treatment 4
(70grams of CLC). Result revealed that T4 (70 grams of CLC) is the most effective application rate of
coffea lignum carbo, therefore, it is recommended as an effective soil amendment to improve physical
and chemical properties of soil. Likewise, the result of the study will be useful to the following; a) to
researchers, use as baseline data to the improvement of future studiesrelated to coffea lignum carbo
and create new technology to address soil acidity with the use of coffea lignum carbo; b) to students,
use as their basis in conducting another set of research to study other parameters that are not included
in the current study; c) to organic practitioners, the CLC will be used as additional/alternative
substrate in making organic fertilizer; and d) to farmers, the use of coffea lignum carbo will address
their problem on soil acidity to improve their crops’ agronomic characteristics.