Agronomy Talk

23

Aug

2022

ITALIAN RYEGRASS MANAGEMENT

AGRONOMY BRIEF

Author: Shane Carver

Over the last ten years, Italian ryegrass has become an increasingly more significant issue throughout the Delta. This weed poses the potential for substantial yield loss in many crops grown throughout the region, especially corn. It is highly competitive with corn during the early portions of the growing season. 

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21

Jun

2022

GRAIN FILL IN CORN: R5 OR FULL DENT STAGE

Agronomy Brief

Author: Shane Carver

The R5 growth stage signals the beginning of the end of the grain fill stage. Many believe that once the grain is fully dented, the crop is safe from yield loss, but that is hardly the case. Much is left to be gained or lost during the “dent stages” of grain fill.

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6

May

2022

LATE-SEASON SOYBEAN GRAIN QUALITY

Agronomy Brief

Author: Shane Carver

Harvest soybeans as quickly as possible to reduce the likelihood of increased quality issues. Seed quality rapidly declines once problems begin due to inclement weather in the fall. If poor-quality grain is present when bad weather hits, you might see a more rapid deterioration in a short period, regardless of weather patterns and rainfall.

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6

May

2022

TARGET SPOT IN SOYBEANS

Agronomy Brief

Author: Shane Carver

Target Spot is a soybean disease caused by the Corynespora cassiicola fungi. Before 2010 it would have been considered a minor disease in soybeans in the Mid-South and Southeast regions of the United States. However, detection of the pathogen has significantly increased in recent years. Many would argue that it is one of the more prevalent diseases observed in soybeans in the South and in cotton fields. Susceptible cultivars can experience yield losses of up to 18 to 32% when favorable conditions are present but rarely result in significant yield losses in the Mid-South.

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4

Nov

2020

Agronomy Talk: SOYBEAN RUST

Author: Shane Carver

Soybean rust, (Phakopsora pachyrhizi), a serious disease of soybean and other legumes, was first discovered in the continental U.S. (Louisiana) in 2004. This disease has been reported to cause upwards of 80 percent yield loss when present under optimal, conducive conditions. Current soybean varieties grown have little to no resistance to soybean rust, thus making proper identification and management decisions even more crucial, as we begin/continue harvest in our area.

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