Citation
Mohd Soom, Mohd Amin and Wayayok, Aimrun and Abdul Rahim, Anuar and Saberioon, Mohammadmehdi and Gholizadeh, Asa
(2013)
Multi-Spectral Images Tetracam agriculture Digital Camera to Estimate Nitrogen and Grain Yield of Rice at difference Growth Stages.
The Philippine agriculturist, 96 (1).
pp. 108-112.
ISSN 0031-7454
Abstract
Several methods are available to monitor the nitrogen content of rice during its various growth stages.
However, monitoring still requires a quick, simple, accurate and inexpensive technique that needs to be
developed. In this study, Tetracam Agriculture Digital Camera was used to acquire high spatial and
temporal resolution images to determine the status of N and predict the grain yield of rice (Oryza sativa
L.). Twelve pots of rice were subjected to four different N treatments (0, 125, 175 and 250 kg ha-1). Three
replicates were arranged in a randomized complete block design to determine the status of N and
predict rice yield. The images were captured at different growth stages (i.e., tillering, panicle initiation,
booting and heading stage) of rice in each pot. N and grain yield were significantly correlated with NDVI
(R2 = 0.78) and GNDVI (R2 = 0.88), especially at the panicle initiation and booting stages, respectively.
The study demonstrated the suitability of using the Tetracam images as a sensor for estimating
chlorophyll content and N. Moreover, the findings showed that the images revealed their potential use
in forecasting grain yield at different growth stages of rice.
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