Rapid Measurement of Soil Carbon in Rice Paddy Field of Lombok Island Indonesia Using Near Infrared Technology

2nd International Conference on Innovation in Engineering and Vocational Education

工业技术;教育

Kusumo, B.H.^1 ; Sukartono, S.^1 ; Bustan, B.^1

Department of Soil Science, Faculty of Agriculture, University of Mataram, JL. Majapahit No. 62, Mataram, Lombok, Indonesia^1

关键词: Near Infrared;    Partial least square regression;    Rapid measurement;    Rapid procedures;    Soil organic C;    Soil organic carbon;    Soil spectral reflectance;    Spectral collection;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/306/1/012014/pdf
DOI  :  10.1088/1757-899X/306/1/012014

来源: IOP

【 摘 要 】

Measuring soil organic carbon (C) using conventional analysis is tedious procedure, time consuming and expensive. It is needed simple procedure which is cheap and saves time. Near infrared technology offers rapid procedure as it works based on the soil spectral reflectance and without any chemicals. The aim of this research is to test whether this technology able to rapidly measure soil organic C in rice paddy field. Soil samples were collected from rice paddy field of Lombok Island Indonesia, and the coordinates of the samples were recorded. Parts of the samples were analysed using conventional analysis (Walkley and Black) and some other parts were scanned using near infrared spectroscopy (NIRS) for soil spectral collection. Partial Least Square Regression (PLSR) Models were developed using data of soil C analysed using conventional analysis and data from soil spectral reflectance. The models were moderately successful to measure soil C in rice paddy field of Lombok Island. This shows that the NIR technology can be further used to monitor the C change in rice paddy soil.