Mississippi Crop Situation

2017 Row Rice Results

Bobby Golden, Agronomist, Delta REC, Mississippi State University
By Bobby Golden, Agronomist, Delta REC, Mississippi State University and Dan Roach, Ext. Associate March 15, 2018 11:03

2017 Row Rice Results

Related Articles

Latest Tweets

Producing rice in a “rowed-up” manner as other row crops such as corn, soybean, and cotton was a foreign concept just a couple of years ago. Row rice or furrow irrigated rice was initially investigated by MSU  Researchers as an alternative to conventional flooded rice production in the 80’s.  Some of you may recall Dr. Joe Street and Dr. Ted Miller worked with Clarksdale’s Leon Bramlett in exploring the agronomic’s of furrow irrigated rice. Mr. Bramlett wanted an alternate crop to raise on his traditional cotton farm.  The idea of furrow irrigated rice was began in Mississippi. This was long before the introduction of the “new” rice herbicides Facet, Command, Newpath, and Clearpath, and issues with weed control ultimately led to the abandonment of the concept. Today, there is tremendous interest in growing furrow irrigated rice vs. growing rice in a typical flooded environment. In 2016, the MSU Irrigation team, due to Producer demand,  started investigating furrow irrigated rice.  Graduate student, Lee Atwill has completed two years of small plot research at the Delta Research and Extension center here in Stoneville.  A summary of his research is presented below.

Atwill investigated both an conventional and the Clearfield herbicide system utilizing three rice cultivars, CL151, Rex, and XL745 (RiceTec). Six different rice irrigation treatments were also included: a continuous flood, an optimized AWD treatment allowing the flood to recede to 4″ below the soil surface while maintaining flood water on the bottom side of the plots, 4” below the soil surface, 8” below the soil surface, 12” below the soil surface, and 16” below the soil surface. Water levels in each paddy were monitored utilizing a Pani pipe and irrigation events were triggered at each respective threshold.   While individual herbicide treatments preformed well in Atwill’s trial, additional scouting may be required for broadleafs weed with implementing row rice.

Nitrogen management was also investigated using the different rice cultivars and  irrigation treatments. The results suggest that when nitrogen is applied utilizing a three way spilt of 50/25/25,  highest yields were achieved.  The other treatments; 100% pre flood, two thirds/one third split, and 25%/25%/25%/25% all resulted in the similar yield.  All fertilizer (NBPT treated) applications were applied to wet soils with the exception of the initial pre flood treatments.

Rice yields among irrigation treatments resulted in the continuous flood and optimized AWD treatments producing similar results.  All other irrigation plots were statistically similar resulting in a 20 bushel yield decrease compared to continuous flood and optimized AWD.  It should be noted that the optimized AWD allowed the water on the top side of the plots to receded to 4″ below the soil surface while maintaining flood water on the bottom side of the plots.  The other row rice irrigation treatments differ in that the entire plot was allowed to dry equally from top to bottom.  These small plot trial  “worst case” scenarios helps explain the yield variation we have seen in the “on farm” trial work.

 

 

Print Friendly, PDF & Email

Bobby Golden, Agronomist, Delta REC, Mississippi State University
By Bobby Golden, Agronomist, Delta REC, Mississippi State University and Dan Roach, Ext. Associate March 15, 2018 11:03
Write a comment

No Comments

No Comments Yet!

Let me tell You a sad story ! There are no comments yet, but You can be first one to comment this article.

Write a comment
View comments

Write a comment

Your e-mail address will not be published.
Required fields are marked*

Subscribe to receive updates

More Info By