Agriculture

Farmer Rain Gamble

What gambles do farmers take? They gamble on when and how much it will rain. They play the odds. If I put down some fertilizer, will it rain enough to move it into the soil? Will rain fall in time for my planted seed to come up? Will the next forecasted rain be enough to incorporate this herbicide?

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Photos: Left, headed wheat east of Chickasha 04/25/18 (A. Sutherland). Right, headed wheat north of Duke 04/27/18 (K. Johnson).

The rain gamble is different for every farmer, for every crop. As we finished out 2017 in Oklahoma, rain was elusive. Continue reading →

Chilling Time for Cattle

Cattle in the Great Plains never know what to wear. Just when they put on their winter coat, it turns warm. Just when they settle into a warm day, temperatures drop and north winds chill a cow to the bone.

Photo: aranchmom.com

Rapid temperature change tips the scale for cattle on the verge of getting sick. It’s that added stress that can bring on bovine respiratory disease. The Cattle Comfort Index gives us a tool to monitor and measure rapid weather changes. It’s a measure of just how good or bad outdoor conditions are for cattle. Continue reading →

Cool August Slows Cotton Maturity

Friday morning has arrived and so has another rainy August day in Oklahoma. All the rainy days this August has meant more cooler days. Those cooler August days have left cotton farmers wondering if they’ll have enough heat units to fully mature this year’s crop.

One of the ways to track a crop’s daily and accumulated heat units is with the Oklahoma Mesonet Degree-day Heat Unit Calculator. This tool allows you to enter a crop planting date and get a table of heat units for any Mesonet site. The table shows daily heat units from planting to the most current date and the accumulation of those heat units over the season.

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Inversion, Dispersion and Spraying

You’ve got a busy day ahead! If part of the day’s work is spraying, it’s tempting to kick on the sprayer as the morning sun lights up your crop and soil. If you’re spraying a herbicide, you don’t want to spray when an inversion is present.

Morning mist is a visible indicator of an inversion, but don’t assume an inversion is gone. The mist maybe gone, but  inversion may still be in place. Read on for a sure way to know when an inversion has fully dissipated.

morning-mist-wallpaper-c2017-08-08.AgBlog.Inversion Dispersion.Morning Mist Soybean Continue reading →

Pecan Scab Attack

When warm nighttime temperatures overlap times of high moisture, pecan scab spores have a good environment to commence their attack. In Oklahoma, we often see these weather conditions in late May and early June.

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(Photo: Leaf with pecan scab (William Reid/Northern Pecans)

Spores released in the spring can infect leaves and young stems. This begins the growing season cycle of pecan scab infection. Spores germinate to enter tender leaf, stem, and nutlet tissue. Fungal hyphae grow inside leaves and stems to produce more spores that infect more leaves, stems, and nuts. Continue reading →

Beaver 2017, Too Long Between Rains

Western Oklahoma’s latest rain was critical to the success of this year’s winter wheat and canola crops. It also brought much needed relief to fire fighters as it drenched areas where large, devastating fires occurred in early March. The rain came with storms on March 28-29, 2017.

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If we just looked at rainfall totals, we’d be hard pressed to believe that 2017 is dealing with “dry” year conditions. That’s because rainfall totals since January 1st fail to tell the story of real-world conditions. One has to drill down and scrutinize rainfall totals under the microscope of daily rainfall events and amounts. And the Oklahoma Mesonet has just the tool to do that, the Mesonet Long-Term Averages Graph maker.  Continue reading →

January 2017 Weather Roundup

January was a month of surprises! We froze from some of the coldest temperatures we’ve seen since 2011, then ended the month basking in spring-like, warm weather.

For January, the departure from Oklahoma Mesonet‘s 15-year average air temperatures ranged from 5 degrees above average in the Northeast and Southeast to 1 degree below average at Kenton in the Panhandle. The majority of winter wheat and canola fields were in areas that came in at 1-2 degrees above average.

2017-02-02.Jan 2017 Avg Air Temp Continue reading →

Frigid Oklahoma Cattle Comfort

What a cold weekend we just went through! For Oklahoma, the cold air swept through the state on Saturday, December 17, 2016. The next two mornings, Sunday and Monday, were especially brutal for cattle.

Checking the Mesonet Cattle Comfort Advisor for Saturday, the maximum Cattle Comfort Index values ran from 82 degrees at Broken Bow in the southeast to zero at Boise City and Eva in the Panhandle.

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Continue reading →