Tag Archives: fertility management

It’s all about timing

fertilizer in a rice field

Use plant growth stage and DD50 to gauge when best to make N applications. • By Jarrod Hardke • Proper nitrogen (N) management is all about timing. Whether we’re talking about preflood N, midseason N or boot N, we need to be on time to maximize yield and the economic return of the application. For all rice cultivars, whether varieties ... Read More »

Despite wet conditions, water use remains a hot topic

multiple-inlet irrigation

As I write this column (March 19), we historically have had at least one rice field planted in Mississippi or are beginning to plant the last week of March. But this year, I fear we will not get the first rice planted until the first week of April due to prolonged wet conditions. Speaking of wetness, the topic for this ... Read More »

Use the DD50 rice management program to stay ahead in 2020

emerged rice

• By Jarrod Hardke • Each year, I’m surprised at the number of producers not currently using the DD50 Rice Management Program on their farms. This program is designed to take much of the guesswork out of in-season management for producers and consultants. In general, projected dates of key timings are accurate within a couple of days throughout the season. ... Read More »

July 18 Rohwer Field Day to feature rice fertility management

nathan slaton

Better ways to manage weeds, soil fertility and learning the latest in variety breeding and testing are part of the wide-ranging agenda at the July 18 Row Crops Field Day at the Rohwer Research Station. This event, the first of the Arkansas Agricultural Experiment Station’s row crop field days, will feature a lineup of University of Arkansas System Division of ... Read More »

6 considerations for preflood nitrogen for rice

Preflood application of urea+NBPT to rice.

• By Trent Roberts, Rick Norman and Jarrod Hardke • Preflood nitrogen (N) applications in rice are very important for setting yield potential in rice as two of the three yield components (tiller number and seeds per panicle) are set by the preflood N. The efficiency of preflood N uptake in rice is influenced by many factors including N source, ... Read More »

Consider these management tips for late-planted rice

fertilizer spreading

• By Jarrod Hardke • Rice drills continue to roll up and down eastern Arkansas. I think most are very aware we’ve been on the slowest planting pace in 25 years to get us here focusing on late May to early June planted rice. While most have already made their decision, and the weather may finish off planting in the ... Read More »

Based on cool weather, UC recommends changes in N, pest strategies

seed rot

• By Bruce Linquist and Luis Espino • Earlier this week, I sent out a blog discussing N management during a wet year. In the blog, one scenario (Scenario 2) mentioned was, “I decided not to apply aqua but just go ahead and flood field when the rains started.” I was traveling around the valley yesterday looking at fields, and ... Read More »

3 ways to manage nitrogen fertilizer when it rains during planting

aqua N application rig

• By Bruce Linquist • Rain in May, especially in the amounts we have seen this year, are far from ideal for rice growers. It makes establishing seedling, nitrogen management and weed control extra challenging. Rain in May is not new. In 1995, 1996, 1998 and 2005, average May rainfall in the Sacramento Valley was 2.3 inches and average statewide ... Read More »

Delay nitrogen, delay yield

aerial fertilizer applicatioin

The hot, dry conditions of 2018 were the poster child for difficulty establishing a timely flood to incorporate nitrogen (N) fertilizer. To achieve consistently high yields, timely application and incorporation of preflood N is the most critical input in rice. Luck always helps, of course. The DD50 Rice Management Program (http://DD50.uaex.edu) is critical for timing preflood N. Originally developed to ... Read More »

Take these steps to prepare for possible fertilizer shortages

fertilizer spreading

• By Trent Roberts • With current Mississippi River levels above flood stage along all of Arkansas’ eastern border, there are increasing concerns that limited barge traffic combined with reduced access to Arkansas ports may tighten fertilizer stocks during periods of high use. Current river depth at Memphis is at 30 feet and falling: however, there is still a significant ... Read More »