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About Crop Manager for Rice-based Systems

Crop Manager for Rice-based Systems (CMRS) aims to increase farmer's net income and sustain the productivity for rice-based cropping systems in Odisha, India. CMRS provides irrigated and rainfed farmers with rice-based cropping systems in Odisha with a crop and nutrient management guideline customized to the needs of an individual farmer. CMRS uses a farmer's answers to questions on farming practices to automatically generate a crop management guideline aimed at increasing the farmer's net income.

CMRS is designed for use by extension workers, crop advisors, input providers, and providers of services who interview a farmer using a personal computer, smartphone, or tablet. After the interview, the collected information can be stored on the computer, smartphone, or tablet until the device is connected to the Internet through a Web browser. Collected information is then transmitted via the Internet to the CMRS 'model', which calculates and transmits a crop management guideline for the rice-based cropping systems within moments back to the computer, smartphone, or tablet. Each guideline provides an actionable and unique recommendation for the crop, which matches the location-specific cropping practices and needs of the farmer. The guideline is then provided to the farmer as a one-page printout, which the extension worker, input provider, or provider of services can also use to advise the farmer on how to increase net income through improved crop management.

The concept and framework for CMRS was developed by IRRI. The nutrient management guideline provided by CMRS is based on the principles of site-specific nutrient management (SSNM), as developed for rice through partnerships of IRRI with national agricultural research organizations in Asia. The Nutrient Manager for Rice developed by IRRI in 2008-2010 and the more recent Nutrient Manager for Cereal Systems developed by IRRI provide the SSNM-based, nutrient management component in CMRS.

The Rice Crop Manager developed by IRRI in 2013 for the Philippines provided the framework for the crop management decision-making logic used in the Rice Crop Manager for Odisha.

Rice Crop Manager was adapted, evaluated, and verified for rice cultivation in Odisha through collaboration of IRRI with the Odisha University of Agriculture and Technology (OUAT) and the National Rice Research Institute (NRRI).

The development of Rice Crop Manager was made possible through support from the Cereal Systems Initiative for South Asia (CSISA), funded by the Bill and Melinda Gates Foundation and the U.S. Agency for International Development

For additional information, please contact:

Dr. (Mrs.) Sheetal Sharma
Soil Scientist/ Nutrient Management Specialist-South Asia
IRRI-India, NASC complex, DPS Marg,
Pusa, New Delhi-110012, India
Tel: +91 1166219296(O), +91 9873417161(M)

Developed by the:
International Rice Research Institute

as a product of research collaboration with OUAT and NRRI

© International Rice Research Institute 2016

Terms and conditions

Crop Manager for Rice-based Systems provides a crop and nutrient management guideline for rice grown in irrigated and rainfed environments. The use of this software is subject to the following terms and conditions:

The International Rice Research Institute (IRRI) does not endorse or promote specific agricultural inputs and fertilizers, and it does not guarantee the accuracy of an analysis labeled on commercial agricultural input and fertilizers. The software assumes that the N, P2O5, and K2O analysis labeled on a bag of fertilizer or organic material accurately reflects the content of plant nutrients. Many factors beyond the scope of Crop Manager for Rice-based Systems - such as climate and water availability - affect rice, wheat, and maize yield. IRRI does not guarantee a targeted crop yield will be attained with the provided nutrient management guidelines. The content of the software is subject to change without notice.

Limitation of liability

Under no circumstances and under no legal theory, whether tort, contract, or otherwise, shall the Board of Directors of the International Rice Research Institute (IRRI) or any of its affiliates, officers, employees, or other representatives be liable to you or any other person for any direct, indirect, special, incidental, or consequential damages of any character including, without limitation, damages for loss of goodwill, work stoppage, computer failure or malfunction, or any and all other commercial damages or losses, specifically including damages to crops and soil resulting from the application of the software, or for any damages or liabilities even if IRRI shall have been informed of the possibility of such damages or liabilities, or for any claim by any other party. This limitation of liability shall apply to liability for death or personal injury except to the extent applicable law prohibits such limitation.

Questionnaire forms for using Crop Manager for Rice-based Systems

The questions used in Crop Manager for Rice-based Systems for interviewing farmers are available as a downloadable questionnaire, which can be printed.

The printed questionnaire can alternatively be used to interview farmers. The information collected with a questionnaire can then be entered into Rice Crop Manager to obtain a guideline for the interviewed farmer.

The questionnaire can be downloaded by clicking on a file name in the list below.

Instructions for using Crop Manager for Rice-based Systems

  1. To start, select on a language (Odia or English). If it is your first time to access the Crop Manager for Rice-based Systems, his will be the first page you see. If not, you can access this with the button, located on the bottom left of the page, then click on Language.
  2. Answer questions for the farmer's field in the order that they appear on the screen. Select an answer from a list of choices by clicking or ticking, or typing the answer into the provided box.
  3. Use the scroll bar on the right side of the questionnaire to go back to a previous question.
  4. After all questions have been answered, click on the button that will appear on the bottom right of the page. If online, a recommendation page with the crop management guideline will be generated. This guideline is based on the answers to the questions. If offline, the user will be asked to save the collected information. The collected information will be saved as a pending input file. When connected to the internet, click on the button, click on the Pending input files folder, and then select the file to generate the recommendation.
  5. The recommendation page typically provides a guideline for an attainable yield level higher than the yield previously attained by the farmer. The yield level is estimated as attainable with good agronomic management practices for the given variety, season, and location.
  6. The recommendation page contains a button. Click on the button to save the recommendation. To see the recommendation, click on the button then the Saved farmer guidelines folder.
  7. After saving the recommendation, the following buttons appear in the output page:
    1. - for printing the recommendation
    2. - for sharing the recommendation as an e-mail
    3. - for downloading the recommendation as PDF. For smartphones, a pdf reader (Adobe Acrobat, Polaris, or Hancom) must be installed to open the downloaded file.
  8. The recommendation page can be printed as follows:
    1. For desktop or laptop computer: Click on the button below the recommendation page.
    2. For smartphone: Connect the phone to a wireless printer. Mobile print app must be installed in the phone for wireless printing. Find the file from the Gallery or File folder and then print.
  9. To start developing a new recommendation, click the button and select Start new session.

© International Rice Research Institute 2016
Crop Manager for Rice-based Systems provides a farmer with personalized crop management recommendations for rice in both rainfed and irrigated conditions.
The farmer should .



How do you name?

Note: Use descriptive name that the farmer can easily associate to the field to be provided with CMRS recommendation. Only 3 to 30 alphanumeric characters can be used for field name.
Where is the field
Gram Panchayat (GP)
What is the size of the field
Warning: Enter a value not less than
Warning: Enter a value not greater than
Is 1.4 mana equal to 1 acre
How many mana in 1 acre
Is 25 guntha equal to 1 acre
How many guntha in 1 acre
Is 100 decimal equal to 1 acre?
How many decimal in 1 acre?
How many crops of rice are grown in the field this year
For which upcoming season do you need a recommendation
Which describes your field in the upcoming
Have you lost yield in your field in the past 5 years to any of the following?

How is submergence best described in your (insert name) field?

What is the earliest month in which floods have receded and you can harvest the rice?
Is your field typcially affected by salinity in the
How will your crop be established in the upcoming

What variety will you grow for the upcoming
What is the growth duration of the variety from sowing in the nursery/field to harvest?

What is the average yield of the variety in the field?
A short duration rice variety, such as (list selected variety) is not recommended when the earliest month for rice harvest is (list selected month). Select a longer duration submergence-tolerant variety to grow for the upcoming selected season. The recommendation you receive will be for that variety.
You can save your rice crop by switching to a submergence-tolerant variety. Would you like to change? Yes or No
Select a submergence-tolerant variety you plan to grow for the upcoming kharif.
The recommendation you receive will be for that variety.
Name of the variety

How do you prepare your nursery?
Do you prepare your nursery
Have you received training for mat nursery
Note: Submergence tolerant varieties are not recommended for stagnant flood of 20 or more days. Well-adapted local varieties are better suited to withstand stagnant flood.
When is rice sown in the
What is the approximate seedling age at transplanting

How much unmilled rice do you typically harvest from your

Warning: Yield must not exceed quintal. Warning: Yield must not be less than quintal.
In years with submergence, how many times in one year was your field typically inundated by flash floods?
Based on your experience in past years, when does submergence often occur? (You can select more than one option)

Based on your experience in past years, when does submergence often occur? (You can select more than one option)

Indicate whether one of the following was grown before the upcoming

If others, please specify:
Was a crop grown in the summer...
Was a non-rice crop grown
What was the non-rice crop grown before the upcoming kharif rice?

If others, please specify:
How was the previous rice crop harvested
What portion of residue from your previous rice crop was retained in the field?

How was the residue from your previous rice crop managed

Do you apply phosphorus fertilizer to the green manure crop
How do you plan to control weeds in the upcoming

Use of herbicide will reduce cost for hired labor for weed control. Do you agree to use herbicide?
Which best describes you?

Which fertilizer sources in addition to urea do you plan to use this

Will you apply organic fertilizer this kharif season?
Have you received a Soil Health Card for your field in the past 2 years
What was the result for the following:

Organic Carbon

What was the result for nitrogen (N)?
Available phosphorus (P)?
Available potassium (K)?
Available zinc (Zn)?

Soil PH


What was the result for boron (B)?

For the person operating Crop Manager for Rice-based Systems

Did you answer the questions through an interview of a farmer who wants to receive a recommendation

How much fertilizer did you apply to your field in the

Time of application DAE/DAS/DAT* Name of fertilizer Number of bag/s per Weight per bag (kg/bag)
1st application
2nd application
3rd application
4th application
*DAE - days after emergence, DAS - days after sowing, DAT - days after transplanting

Information about the farmer

Name of farmer group

Farmer ID (optional)

Given name



Warning: Select at least one.
Indicate which of the following represents you

RCM could send you SMS with farming advice during the cropping season. A phone number is required to receive SMS. Would you like to receive SMS advice?
Mobile phone number (optional)

E-mail (optional)

Father's name

Where is the location of the interview?

Please specify:
Name of NGO:

Location of Kendra:

CSISA Project Farmer ID (optional)

Do you have a Facebook account

E-mail for Facebook account

Do you have a smartphone

Information about the person operating

Given name


Do you reside in India


If others, please specify

CSC ID (required)

What is your organizational affiliation?

If others, please specify

Please specify

Mobile phone number (optional)
E-mail (optional)
Father's name

Reference Number

Name of farmer group:

Date generated
Crop establishment
Sowing date

Note: Use this recommendation for only.
Target yield on Target yield on:   ,   t/ha (14% MC)
sacks at 50 kg/sack Variety 1:
Variety 2:   sacks at 50kg/sack,   t/ha (14% MC)

Apply pre-emergence..
Hand weed..if necessary.
Use raised..
Use # x # cm plant spacing
Hand weed..
Apply zinc sulfate to nursery.
Consult CSISA or OUAT for training on mat nursery preparation.
Use 15 to 20 day old seedlings for mechanical transplanting.
Growth Stage * Kilograms of fertilizer for ()
* name1 name2 name3 Zn sulfate * name1b name2b name3b
Early* 20
Active tillering
Panicle initiation
* Achievable yield in the wet season with good management practices
* Application of fertilizer during early stage can be basal

Delay application of urea up to when water is too little or too much within or at active tillering. If the condition persists at , apply urea at panicle initiation. Apply of urea at panicle initiation stage when water is too little or too much during active tillering stage.
Reported current yield: Variety 1: t/ha      Variety 2: t/ha

© International Rice Research Institute 2016

  • Set another yield level
    The new yield target must be realistically attainable with the variety, crop management and expected climate conditions. Indicate new yield level within the range of sacks to sacks.

    Grain yield:    =        t/ha (14% MC)

    Reported current yield: sacks at 50 kg/sack, t/ha (14% MC)
  • Share fertilizer recommendation
    Do you want to send the fertilizer recommendation

    as e-mail to

    as text to

    Do you want to save the fertilizer recommendation

    Note: Once the recommendation has been shared or saved, changes in the yield level and answers to the questions will no longer be allowed.
Do you want to store the collected information for field  of ?

The collection of information for field  of is now saved as a pending input file in your phone/computer.

The collected information for field  of will be deleted. No recommendation will be provided..

  • Start new session
    Would you like to develop a recommendation

You have now successfully ended your session. You may now close this browser window.