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Determination Of Organic Carbon And Total Nitrogen In Paddy Field (Batu<br />

Rakit & Bukit Payung) Using CHNS Analyser<br />

Rosnani binti Shafiee<br />

Syeril Adiba binti Abdullah<br />

Supervisor: Dr. Poh Seng Chee<br />

Bachelor of Science (Analytical and Environmental Chemistry)<br />

School of Marine and Environmental Sciences<br />

Universiti Malaysia Terengganu<br />

Improved assessment and prediction of organic carbon and total nitrogen in<br />

agricultural land is essential for a better management of carbon and nitrogen in<br />

cropping systems. The objectives of this study were to determine pH of soil, particle<br />

size analysis, and organic carbon and total nitrogen in Batu Rakit and Bukit Payung<br />

paddy fields using CHNS analyser. The pH of soils was determined in situ, showing<br />

desirable values in range of 4-6 for optimum growth. Crops in Batu Rakit is wellmanage<br />

even though particle size analysis shows the composition of sand is higher<br />

than silt. However, the unmanaged Bukit Payung’s crop showing high percentage of<br />

silt than sand. Average CN ratios shows typical value 12 and 1. Data gives TN of only<br />

0.24%, whereas TOC is 2.24%. High organic content encourage crops’ growth.<br />

1999 | UMT UNDERGRADUATE RESEARCH DAY 2018

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