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Category Posts for Physiology

20
May
2016
Soybean Research Verification Program update for May 20, 2016
Author: Chad Norton, Soybean/Wheat Verification Program Coordinator

By Chad Norton, Soybean Research Verification Program Coordinator Been a cold week, for this time of year, and wore a jacket walking fields during the morning. Lonoke County got planted last week which brings the total to 13 out of 15 now planted. Rain was pretty sparse over the past week ranging from zero at […]

04
May
2016
Armyworms in wheat: When treatment is warranted
Author: Gus Lorenz, Extension Entomologist

By Gus Lorenz, Extension Entomologist There have been sporadic reports of true armyworm feeding in wheat this past week.  The question is: “Are they really causing any damage?” The armyworm population is very early this year and we continue to receive reports of armyworms in wheat that is flowering to early grain fill. Everybody is […]

15
Apr
2016
Rootless corn syndrome: a real problem
Author: Jason Kelley, Wheat & Feed Grains Extension Agronomist

By Jason Kelley, Extension Wheat and Feed Grains Agronomist We are starting to see some corn plants exhibiting “Rootless Corn Syndrome”.  Yes, this can be a real problem in corn and although the name seems odd, it a very accurate description.  Corn needs to be planted approximately 2 inches deep to help ensure that the […]

03
Feb
2016
Roundup Xtend approval: What does it mean for Arkansas producers?
Author: Tom Barber, Extension Weed Scientist

By Tom Barber, Extension Weed Scientist Monsanto announced Wednesday that Roundup Ready 2 Xtend soybean have gained import approval in China. This is long-awaited news for Arkansas producers, as seed for planting this technology has been available for at least a year now. Researchers at the University of Arkansas System Division of Agriculture have been […]

13
Jan
2016
SoyMAP soybean variety decision support software now available
Author: Arkansas Row Crops

By Larry Purcell, Crop Physiologist, Department of Crop, Soil, and Environmental Sciences, Division of Agriculture, Fayetteville A 3-year experiment across six states supported jointly by the Mid-South Soybean Board and the United Soybean Board evaluated the response of maturity group (MG) 3 to 6 soybean cultivars to planting dates under irrigated conditions. Results from this experiment […]

23
Dec
2015
2015 Soybean Update now available
Author: Jeremy Ross, Extension Agronomist - Soybeans

By Jeremy Ross, Extension Soybean Agronomist Hundreds of soybean varieties are commercially available to growers in Arkansas. Varietal performance, including yield, varies according to location, environmental adaptability to soils, maturity, lodging, height, disease and nematode resistance, and herbicide and chloride sensitivity. This information listed in the Soybean Update is largely derived from the University of […]

30
Sep
2015
Determining when to harvest your peanut crop
Author: Travis Faske, Extension Plant Pathologist

By Travis Faske, Extension Plant Pathologist Unlike other row crops, peanuts are not terminated by shutting off the water but rather by digging and inverting the crop (Fig. 1). Currently, there are a few fields that are being dug across the state, but determining when to dig is an important decision that should not be […]

31
Jul
2015
Harvest Aids for Grain Sorghum
Author: Jason Kelley, Wheat & Feed Grains Extension Agronomist

By: Jason Kelley, Tom Barber, Gus Lorenz, Glenn Studebaker, and Nick Seiter As we approach grain sorghum harvest, many are considering using a harvest aid. There are pros and cons to using a harvest aid. The greatest benefits are that they can dry down green plant and or weed material to allow quicker, more efficient […]

23
Jul
2015
Rice Research Verification Program update for July 20, 2015
Author: Ralph Mazzanti, Rice Research Verification Coordinator

By Ralph Mazzanti and Ron Baker, RRVP Coordinators South Arkansas: The heat units have most fields maturing fast. In some cases maturity is a few days earlier with a current DD50. Greenseeker technology was utilized on all fields and determined 6 of 9 fields requiring no midseason nitrogen. Two hybrid fields in Chicot and Arkansas […]

29
Jun
2015
Rice Research Verification Program Update for June 29, 2015
Author: Ralph Mazzanti, Rice Research Verification Coordinator

and Ron Baker, Rice Research Verification Program Coordinator South Arkansas: All fields progressing well with good heat units moving them along. In some cases maturity is a few days earlier with a current DD-50. Five conventional fields (Desha, Monroe, Lonoke, Phillips, and the north half of Lee County) did not require any mid-season nitrogen applications. […]