Tag Archive: Hayfields

Wakulla County Pastures and Hayfields O.K., but…

The National Weather Service is forecasting hot, dry conditions for major grain and cattle producing states.

Rains in Wakulla County and the remainder of the Big Bend region have been generally sufficient to support hay production and pasture growth.  Since Tropical Storm Debby, Wakulla County has received consistant rain with scattered showers in the area.

Some area hay producers could use a few predictably dry days to cut and bale.  The local sandy soils dry quickly, so no more  than a few sunny days are a positive condition for forage producers.

While not ideal, local producers are, as a group, thankful for weather conditions here as compared to other regions. The hot dry, temperatures in the major livestock and grain states has most local producers concerned about the months to come.

The drought in the Midwest has lasted longer and is more widespread than many commodity traders expected.  This surprise has led to high prices as crop conditions continue deteriorate.

A National Oceanic and Atmospheric Administration (NOAA) report stated, based on the Palmer Drought Index, 55 percent of the contiguous United States was under moderate to extreme drought in June. Analysts are slashing corn yield estimates across the grain belt based on this report identifying this event as the worst drought since1956.

The U.S. corn production has dropped another seven percent based on the USDA’s downgraded estimate of a week ago.

The U.S. Department of Agriculture (USDA), in its weekly crop progress report issued on Monday, July 16, 2012, said 31 percent of the corn crop was in good to excellent shape, down from 40 percent a week earlier.

The report indicated soybeans followed suite as conditions fell to 34 percent as good to excellent, down from 40 percent. The forecasts for acres to be harvested are falling as farmers opt to plow under some of their fields in anticipation of filing crop insurance claims.

While the corn-belt weather is expected to be hot and dry over the next two weeks, there is a chance of two rain events which may help mitigate some of the crop damage. The rain is not expected to fall in the hardest hit areas of the southeast corn-belt, but may slow crop deterioration seen in the northern and western areas of the corn-belt.

If the rainfall doesn’t develop or is disappointing, then the worries are just beginning.

Les Harrison

Permanent link to this article: http://bay.ifas.ufl.edu/newsletters/2012/07/20/wakulla-county-pastures-and-hayfields-o-k-but/

Leafspot/Rust in Bermudagrass Hayfields

I have observed bermudagrass leafspot/rust in several commercial hayfields of Russell Bermudagrass in Holmes County over the last few weeks.  Typically this is something that is observed later in the growing season during hot, humid weather.  Even though Russell is thought to have good resistance to leafspot sometimes resistant varieties can still be infected with leaf diseases, particularly when soil fertility is low.   Included is some information on bermudagrass leafspot from the University of Georgia.

The severity of leaf spot can be minimized using management practices once the stand is established.  The most important practice is to sample soil and maintain adequate levels of fertility. Soil potassium is critical for leaf spot resistance. Most reported leaf spot cases are directly related to low soil potash. Nutrients are removed from bermudagrass hay fields in approximately a 4-1-3 ratio of N, P2O5, and K2O with hay harvest. That means that 75 percent as much potash as nitrogen should be applied each season. Please note that soil tests can be misleading. In Georgia there have been cases where adequate soil levels were present, but plant tissue samples indicate a nutrient deficiency.

In the twenty acre field where these pictures were taken, the farmer had applied 80 lb of potash per acre with his initial application of nitrogen for the hay season.  However, our growing conditions have been very dry, resulting in poor nutrient uptake in this field.  Soil test levels of potassium were in the edge of medium in this case.

Thatch buildup can also contribute to leafspot development in bermudagrass. Some leaf spot infections appear to be associated with the amount of thatch present in hay fields, with heavy thatch loads producing higher incidences of leaf spot. Thatch ties up nutrients and contains abundant decaying material, which may serve as a “spore reservoir.” In addition, thatch retains water and reduces air circulation, creating humid conditions and promoting leaf spot incidence. The only practical way to reduce thatch is to burn in the months just prior to bermudagrass green-up.

Submitted by Shep Eubanks, Holmes County Extension Director

bigbuck

Permanent link to this article: http://bay.ifas.ufl.edu/newsletters/2012/06/01/leafspotrust-in-bermudagrass-hayfields/