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Category Posts for Physiology

14
Sep
2017
Cotton termination: Heat unit accumulation as of Sept. 14, 2017
Author: Bill Robertson, Cotton Agronomist

By Amanda Free, Cotton Research Verification Sustainability Coordinator; and Bill Robertson, Cotton Extension Agronomist Identifying the last effective boll population is essential for making end-of-season management decisions. Cutout is reached when nodes above white flower (NAWF) counts drop below five or when the probability of accumulating sufficient heat units to mature a flower remain in the season. […]

13
Sep
2017
Maximizing Wheat Yields and Profit in 2018
Author: Jason Kelley, Wheat & Feed Grains Extension Agronomist

By Jason Kelley, Extension Wheat and Feed Grains Agronomist The 2017 Arkansas wheat crop was small in acreage but many producers reported exceptional yields with intensive management.  Acreage was at or near record lows with approximately 195,000 acres planted in the fall of 2016.  Acreage was down for several reasons, but low grain prices at […]

12
Sep
2017
Rice Research Verification Program Update for Sept. 8, 2017
Author: Ron Baker, Rice Research Verification Program Coordinator

By Ron Baker and Ralph Mazzanti, Rice Research Verification Program Coordinators South Arkansas:  Seven of nine fields have been harvested with yields all over the board ranging from excellent to poor.  Prairie County was excellent as well as the Jefferson County row-water field.  The Clark County field encountered severe blast and had a lot of […]

07
Sep
2017
Cotton termination: Heat unit accumulation as of Sept. 6, 2017
Author: Bill Robertson, Cotton Agronomist

By Amanda Free, Cotton Research Verification Sustainability Coordinator; and Bill Robertson, Cotton Extension Agronomist Identifying the last effective boll population is essential for making end-of-season management decisions. Cutout is reached when nodes above white flower (NAWF) counts drop below five or when the probability of accumulating sufficient heat units to mature a flower remain in the season. […]

01
Sep
2017
Cotton termination: Heat unit accumulation beyond cutout as of September 1, 2017
Author: Bill Robertson, Cotton Agronomist

By Amanda Free, Cotton Research Verification Sustainability Coordinator; and Bill Robertson, Cotton Extension Agronomist Identifying the last effective boll population is essential for making end-of-season management decisions. Cutout is reached when nodes above white flower (NAWF) counts drop below five or when the probability of accumulating sufficient heat units to mature a flower remain in the season. […]

30
Aug
2017
Cotton termination: Heat unit accumulation beyond cutout as of August 30, 2017
Author: Bill Robertson, Cotton Agronomist

By Amanda Free, Cotton Research Verification Sustainability Coordinator; and Bill Robertson, Cotton Extension Agronomist Identifying the last effective boll population is essential for making end-of-season management decisions. Cutout is reached when nodes above white flower (NAWF) counts drop below five or when the probability of accumulating sufficient heat units to mature a flower remain in the season. […]

22
Aug
2017
Cotton termination: Heat unit accumulation beyond cutout as of August 22, 2017
Author: Bill Robertson, Cotton Agronomist

By Amanda Free, Cotton Research Verification Sustainability Coordinator; and Bill Robertson, Cotton Extension Agronomist Identifying the last effective boll population is essential for making end-of-season management decisions. Cutout is reached when nodes above white flower (NAWF) counts drop below five or when the probability of accumulating sufficient heat units to mature a flower remain in the season. […]

22
Aug
2017
Rice Research Verification Program Update for Aug. 18, 2017
Author: Ralph Mazzanti, Rice Research Verification Coordinator

By Ron Baker and Ralph Mazzanti, Rice Research Verification Program Coordinators South Arkansas:  Rainfall amounts have been from 4” in Lafayette County to 3.4” in Desha County hindering harvest.  Four fields are mature and ready for samples to be cut after some dry weather.  Prairie County cut a sample and the moisture was 24%.  The […]

18
Aug
2017
Cotton cutout: Heat unit accumulation as of August 18, 2017
Author: Bill Robertson, Cotton Agronomist

By Amanda Free, Cotton Research Verification Sustainability Coordinator; and Bill Robertson, Cotton Extension Agronomist Identifying the last effective boll population is essential for making end-of-season management decisions. Cutout is reached when nodes above white flower (NAWF) counts drop below five or when the probability of accumulating sufficient heat units to mature a flower remain in the season. […]

14
Aug
2017
Soybean Research Verification Program Update for August 11, 2017
Author: Chad Norton, Soybean/Wheat Verification Program Coordinator

By Chad Norton and Chris Elkins, Soybean Research Verification Program Coordinators All fields got in on rainfall this past week ranging from .15” at Pulaski and Lonoke to 3.16” at Crawford. Phillips and Cross were treated for insects this past week. Diseases continue to remain a low levels with no fields treated. Temperatures over the […]