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1. Start a new session: Monitor leaf colour continuously from 21 days after transplantation (DAT)/28 days after sowing (DAS) at weekly interval until 1 week after panicle initiation for varieties and up to flowering for hybrids.
2. The perfect timing: Leaf image reading should be taken in morning: 8 – 10AM.
3. Set of ten leaves: Ten topmost fully expanded leaves should be selected randomly from disease-free rice plants.
4. Image capturing:
An user ID and password will be generated while registering for the installation and use of the application through sharing the phone number and inserting OTP.
A new session can be created by clicking on the “Add new session” button where, images of 10 rice leaves are captured using the inbuilt camera of the android phone followed by auto- cropping of the leaves as per the region of interest. After all the 10 images are captured, proceed to apply the method for categorization and nitrogen fertilizer recommendation.
Whenever there is a need to observe the previous data, we can always visit the history using the “Dashboard” button. All the activities are listed with details of categorization and nitrogen fertilizer recommendation.
| Particulars | Rainfed favorable low land | Rainfed upland | Submerged and flood affected | Irrigated Kharif | Irrigated Rabi | Hybrid |
|---|---|---|---|---|---|---|
| System of cultivation | Transplanting or direct seeding | Direct seeding | Transplanting or direct seeding | Transplanting | Transplanting | Transplanting |
| Initial application |
Within 0-7 days of transplanting /
0-14 days of sowing Apply 17 kg urea/acre |
Within 0-14
days of sowing Apply 17 kg urea/acre |
Within 0-7 days
of transplanting
/0-14 days of
sowing Apply 17 kg urea/acre |
Within 0-7 days
of transplanting Apply 23 kg urea/acre |
Within 0-7 days
of transplanting Apply 29 kg urea/acre |
Within 0-7 days of
transplanting Apply 35 kg urea/acre |
| Start of LCC reading | 21 DAT/28 DAS | 28 DAS | 21 DAT/28 DAS | 21 DAT | 21 DAT | 21 DAT |
| Next application |
17 kg urea/acre as
and when LCC <3* (1 st & 2 nd top dressing) |
17 kg urea/
acre as and
when LCC < 3* (1 st top dressing) |
17 kg urea/acre $
as and when LCC < 3* (1 st top dressing) |
23 kg urea/ acre
as and when LCC < 3* (1 st & 2 nd top dressing) |
29 kg urea/ acre
as and when LCC < 3* (1 st & 2 nd top dressing) |
24 kg urea/ acre
as and when LCC < 3* (1 st & 2 nd top dressing) 10 kg urea/acre (3 rd top dressing) |
| No. of application |
3 (including initial) 1 st top dressing 2 nd top dressing |
2 (including
initial) 1 st top dressing |
2 (including initial) 1 st top dressing |
3 (including initial) 1 st top dressing 2 nd top dressing |
3 (including initial) 1 st top dressing 2 nd top dressing |
4 (including initial) 1 st top dressing 2 nd top dressing 3 rd top dressing |
In case of any issue, contact us:
ICAR-National Rice Research Institute, Cuttack 753006, Odisha
Phone: +91-671-2367757/67; EPBX: +91-671-2367768-783 Fax: +91-671-2367663
Email: director.nrri@icar.gov.in | crrictc@nic.in