Tag Archives: fertility management

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 »

Consider a seed treatment to boost seedling vigor

seedling disease

Early season disease management is becoming increasingly important as Texas rice farmers trend toward planting earlier at lower seeding rates (about 50 percent of Texas rice acreage is planted to hybrids). Clearly, the earlier plantings have a better chance of producing both high-yielding main and ratoon crops. But planting earlier means exposing seed to lower temperatures and possibly wetter soil, ... Read More »

Growers have new tools in their toolbox for 2019

texas pesticide collection

We have been fortunate to see new products on the market for rice over the past few years. These products have put more tools in the toolbox for us to use to manage our rice crop. In 2018, we saw three new herbicides (Loyant, Gambit and Provisia), one new herbicide premix (RiceOne), one fungicide (AmistarTop) and of course, the new ... Read More »

Researchers: Fertilizer choice can affect methane-producing organisms in soil

sampling rice fields for methane

University of Arkansas System Division of Agriculture rice research may lead to more sustainable crop production in the state and around the world. The quest for increased sustainability in agriculture and other industries includes examining greenhouse gases and how they’re generated. In the United States, only a small fraction of greenhouse gases are attributed to agriculture – 8.6 percent, according ... Read More »