Planting Recommendations
Plant early and target 8-10
plants/square foot.
RiceTec hybrids adapt well to planting from early
to late. April planting in the Midsouth and March
planting in southern Louisiana and Texas maximizes
yield potential; however, the hybrid advantage continues
throughout the planting season.
RiceTec hybrids should be planted no earlier than
April 1st in the Midsouth and March
15th in the Gulf coast; when the soil temperature
at planting depth is 65°F or greater.
Preferred planting method for RiceTec hybrids is
drill seeding. The 2008 RiceTec Hybrid Stand Guarantee
program does not fully cover water planting, but if
RiceTec products are water-seeded they should be pre-soaked
for a minimum of 24 hours before seeding.
Standard RiceTec hybrid seeding rate is 600,000 seeds/acre
or 14 seeds/ft2 to reach the target stand of 8-10
plants/ft2. Recommendations for some products may
vary from the standard; specific seeding rates for
each product will be printed on the seed bag.
Seeding rates may need adjusting for specific field
conditions, cultural practices, and planting dates.
Please contact your local RiceTec Representative to
discuss possible seeding rate adjustments.
Related Link(s):
Nutrient Recommendations
Recommendations are regionalized.
Delay second Nitrogen application until boot.
Nitrogen requirements for RiceTec hybrids involve
different timing than conventional varieties. Two
major N recommendation areas have been defined:
1) Areas with lower response to Nitrogen: 120 lb
N/A, split as 90 preflood and 30 at boot. These correspond
to:
- Mid South: areas between Bayou Meto and LaGrue
Bayou in Arkansas, Lonoke, and Prairie counties
in Arkansas, or what is generally referred to as
the Grand Prairie.
- Gulf Coast: In Louisiana, east of the Mermentau
River-Bayou Nezpique to Bayou Mallet and south of
Hwy 14. In Texas, west of the Trinity River.
2) All other Coastal/Midsouth rice production areas
would have base recommendation of 150 lb N/A, split
as 120 preflood and 30 at boot.
These recommendations may be adjusted according to
specific situations on your farm; e.g., if Nitrogen
deficiency symptoms are evident at midseason, then
apply 30 lb N/A at midseason in addition to the base
recommendation.
Nitrogen rates and timings are evaluated each year
for increased precision in managing RiceTec offerings.
Guidelines for any Nitrogen recommendation changes
will be available prior to March 2008 through local
RiceTec Representatives and at www.ricetec.com.
Apply other nutrients per soil test recommendations.
Herbicide Recommendations
Follow an integrated weed
management approach.
- Apply herbicides as desired per manufacturer and/or
University recommendations.
- Carefully read and follow all label instructions.
- Excessive rates and/or overlaps of Command™
in association with stressful growing conditions
may reduce final plant stand and should be avoided.
- In CLEARFIELD® hybrid populations a low percentage
of plants are not tolerant to the CLEARFIELD®
system herbicides (Newpath®, Beyond™,
and Clearpath®) and are not expected to survive
once these chemicals are applied.
- CLEARFIELD® hybrid plant response is likely
after Newpath®, Beyond™, or Clearpath®
applications under stressful growing conditions.
- Apply Beyond™ to CLEARFIELD® products
as per BASF label recommendations. CLEARFIELD®
hybrid plant injury may result when Beyond™
is applied past panicle initiation.
- CLEARFIELD® rice injury has been documented
when Ricestar HT® was applied a few days before
the 2nd Newpath® application and should be avoided.
Disease Characteristics
Hybrids offer best available
disease package.
Although RiceTec hybrids normally do not require
fungicide treatment, fields should be scouted closely
for disease and treated with fungicides when necessary.
Consider field history and environmental conditions
when making fungicide decisions.
Disease Reactions & Characteristics
Table
click
here to enlarge
Grain Retention
Begin harvest at 18-20%
grain moisture.
Current RiceTec products are very easy to thresh
and should be harvested as soon as grain moisture
reaches 18 to 20% to reduce possible grain loss.
Ratoon Management
Apply 100 lb N/A at ratoon
crop flood up..
Ratoon crop Nitrogen should be applied at a rate of
100 lb N/A preferably onto dry ground. Nitrogen should
be applied and a flood should be established immediately
after harvest. Increased Nitrogen rates and/or flail
mowing may cause up to a 2 week delay in maturity,
but grain yield increases of 500 to 1,000 lbs/ac have
been routinely documented in flail mowed fields.
Crop Rotation
after hybrids
Follow hybrid with hybrid,
CLEARFIELD* rice or another crop.
- Planting conventional rice following hybrid rice
may result in unappealing cosmetic effects due to
contrasting plant appearances.
- Follow hybrid rice with another hybrid, CLEARFIELD®
rice or another crop such as Roundup Ready®
soybeans, corn, cotton, or grain sorghum.
- Follow the BASF CLEARFIELD® stewardship program
for all CLEARFIELD® products. Stewardship agreements
must be signed before CLEARFIELD® seed is shipped.
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