An interactive web-based program that predicts rice growth
stages and provides advice on rice management. The
program allows the user to select advanced options for creating, running,
and displaying multiple field crop forecasts for different rice varieties,
planting dates, and rice producing counties in Texas.
emergence : Date
on which 10% of the seedlings have emerged in a rice field.
emergence : Date
on which 90% of the seedlings have emerged in a rice field.
A collection of production and weather data needed to
forecast rice plant growth stages.
Production data include rice variety, planting date, 10% emergence date, and
90% emergence date. Weather data
include weather station, and year or historic average for the station.
User: A guest
user can use the Rice Development Advisory. However,
the user will not be able to use some of the advanced features nor save
data to the system database.
registered user (by creating a new account) can use all the features of the
Rice Development Advisory. Registered users can create and edit their
profiles and add their own weather data.
days is the
cumulative daily DD50 heat units starting from the date of 10% emergence. The DD50 heat
units for a day is calculated as (Daily Max
Temperature + Daily Min Temperature)/2 - 50. The DD50 value is set
to 0 if it is less than 0. The DD50 value is set to 25 if it is
greater than 25.
The Rice Development Advisory has direct access to a large weather database
with over 1000 weather stations for
both current and historic data, dating back to 1800’s for some stations.
The weather data were obtained from
The National Climatic Data Center (NCDC)
of the National
Oceanographic and Atmospheric Administration (NOAA).
The Rice Development Advisory
currently provides access to weather stations for the following 21
rice producing counties in
The NOAA weather data is usually for 1-2 months when it is available to us.
Currently, only the
Beaumont Research &
(Jefferson County) and the Eagle
Lake Research Station (Colorado County)
have up-to-date weather data.
users can add their own weather data for use by the Rice Development Advisory.
The user-supplied weather data is accessible only by the specific
user. No other user can access it.
Data Usage : The
weather data (daily maximum and minimum air temperatures) is used by
the program to estimate dates of different crop stages based on heat
requirements, starting from the date of 10% emergence.
A user can choose weather data for the current year, a historic year, or
daily historic averages for a particular weather station.
For the current year, the Rice Development Advisory uses current weather
data for the selected weather station, and uses the station’s daily historic
average for the remaining days of the current year. If the selected weather
station does not have up-to-date weather data, the program automatically
uses up-to-date weather data from either Eagle Lake Research Station (for
counties west of Houston) or Beaumont Center (for counties east of Houston).
For a county without a weather station, the program provides three stations
from the counties which are closest to the county.
the program currently does not provide daily historic average for a user’s
weather station, users can choose the daily historic average from an available
weather station in the same county as the user’s weather station.
Data Access: The
Rice Development Advisory provides an interface for users to view and download
weather data (both historic and current) for weather stations in all of the
rice producing counties in Texas. Registered
users can also view and edit their own weather data.
Display information about a user (user name, user ID, email, etc.) who
has registered with the Rice Development Advisory program. User information is
only accessible by that user.
information about all varieties which are currently in the system.
The information includes heat units to different crop stages (2nd
tiller, panicle differentiation, first heading, milk stage, turning, and grain
maturity) and disease resistance (rice blast, sheath blight, and straight
forecasts for single or multiple field profiles for the current user
Create a new field profile
||Edit existing field
||Growth forecast for single or
multiple field profiles
||Growth forecasts for single or multiple rice varieties
||Growth forecasts for single
or multiple planting dates
||Growth forecasts for single or
||Background information about weather data sources and usage
|Add User Data
||Add user specific weather data for
new or existing user stations
|View User Data
||View current user’s weather
|View County Data
||View system weather data for 21 rice producing counties in Texas
||Second Tiller: Second tillers (or first subtiller) have emerged from a
||Panicle Differentiation: 30% of main culms have a 2 mm or greater panicle.
||First Heading: 15% of field beginning to head.
||Milk Stage: The interior of the kernel is filled with a white liquid
||Turning: Grain visibly changing color or turning from green to tan.
||Maturity: The whole grain is hard and ready for harvest (with 20% grain