RiceNxpert based
The
“RiceNxpert” , a smart android based application for estimating
nitrogen nutrition status in the rice leaf using digital colour image
analysis
This
application can be down loaded from google play store, www.RiceNxpert.com, htpp:/icar-nrri.in or
resilienceindia.org
Directions
for using riceNxpert
Images of ten fully expanded healthy leaves should be taken
with white background by placing a white sheet on the back of the leaf from 14 DAS till 10 days after panicle initiation
The images should be captured from a distance of 15-20 cm.
All the readings should be taken during 8-10 AM by the same person using an
android smart phone.
The images should be checked for its clarity with non-blur,
disease free, clean background.
Then the leaves are cropped and RGB values are extracted.
These RGB values are converted into Pantones and then
differentiated into four color categories. The N recommendation is made in
terms of urea based on these color categories.
N
@ 80-100 kg ha-1 to be applied in equal splits of
3 (33% each) on the basis of riceNxpert recommendation.