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Drought Management Strategies: Preserving Next Year’s Calf Crop

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Alabama counties have experienced increased levels of drought throughout this past summer and fall. To successfully survive drought conditions, producers must develop a plan that considers not only the present, but also the future. Developing a plan to preserve next year’s calf crop is a key part of planning for a successful future. This article will explain the nutritional requirements of beef cows for reproduction and explore management strategies to help preserve next year’s calf crop in the current drought situation.

 

Requirements for Reproductive Success:

Beef cows should be managed to calve at a minimum body condition score (BCS) of 5 to ensure that they have adequate flesh to return to cycling and establish pregnancy. BCS allow producers to estimate the fat stores on their cattle and range from 1 to 9, with 1 being extremely emaciated and 9 being extremely obese. Cows of a BCS 5 will have a good overall appearance, with some fat covering over their spine, ribs, hips, and around their tailhead. As BCS drops below 5, bones become less and less covered by fat and become more visible. Follow this link for more information and helpful pictures for body condition scoring.

Determining your cows’ BCS and managing animals to maintain a BCS ≥5 is essential to ensuring reproductive success. BCS and nutritional status at both calving and during the breeding season affect reproductive success, so it is important to know where your cows are in their production cycle and manage them accordingly.  Cows’ BCS/nutritional status at calving affects the length of time it takes for them to return to cycling after calving, with cows of low nutritional status at calving taking longer to return to cycling post calving. Once the breeding season is entered, low levels of nutrition and BCS<5 cause reduced pregnancy rates. To survive the drought with next year’s calf crop intact, cows must be fed to maintain their BCS.

Cows require different levels of nutrition at different stages of production. Understanding cow nutrient requirements will help producers meet the needs of their cows to maintain a BCS ≥5. Reference this timely information sheet for more information on your cows’ nutritional needs and how to supplement with varied qualities of hay. Recognize that your cows’ needs are the highest in early lactation. This is the time period when we also need cows to return to cycling and become pregnant. Corners should not be cut during this important time period. Furthermore, note that it’s easiest to put weight on cows after weaning. If you currently have thin, dry, pregnant cows it is a good idea to use this time to allow them to gain weight necessary to increase their BCS to 5. As a rule of thumb, you can expect to gain 1 BCS with each 80 lbs of weight gain in mature beef cows.

Pregnancy examination is essential in all years, but is extremely important this winter as we continue or recover from drought. If cows have not been examined for pregnancy, consider having a veterinarian palpate your cows and cull open cows that have weaning age calves. This will allow for added income and less mouths to feed through the winter and early spring.  As you complete this year’s breeding season, pregnancy check your cows. Since resources were limited, there is a chance that BCS dropped too low and more cows than usual may be open at the end of the breeding season. It is essential to identify and cull these individuals.

Additional Strategies in Times of  Drought:

  1. Pay attention to your heifers- 2-year-old heifers nursing their first calves have higher nutritional needs than their mature counterparts since they are still growing. Furthermore, they are often bucked away from feed sources by older animals. It is a good idea to always manage heifers away from the mature cowherd, however in years of drought and limited feedstuffs it may be essential to allowing them to consume the necessary amount of hay/supplement to maintain their BCS for reproductive success.
  2. Consider early weaning of calves- if cows go into calving thin or become extremely poor while nursing young calves, it may be necessary to wean calves early to allow cows to regain the condition needed for reproduction. Calves 90 days and older can be successfully weaned onto free choice long stemmed hay with correct supplementation. Removing calves may help “jump start” cows to return to cycling and will lessen cows’ nutrient requirements so weight can be gained.

By taking care to manage cattle to nutritional levels necessary for pregnancy success, a producer can preserve next year’s calf crop through drought situations.

Sarah Dickinson, M.S.

Regional Extension Agent I

Animal Science and Forages

Drought Strategies and Available Assistance to Livestock Farmers

According to Sarah Dickinson, Animal Sciences and Forages Regional Extension Agent, counties in North Eastern Alabama have been dry throughout the summer of 2016. As property owners, commodity farmers, and livestock producers hope for rain, various management strategies and assistance programs may be considered. Livestock producers should use management strategies to stretch available hay and grazing. Hay availability has been of great concern to livestock producers this summer. Because of the lack of rainfall and bouts with armyworms, hay production has decreased. Furthermore, loss of grazing has increased summer hay demand, with many producers feeding hay at least sometimes this past summer. To better stretch your resources, consider grouping animals to feed hay and supplement appropriately for their varying nutritional needs. For example, cows in peak lactation will consume 2.5-3% of their body weight and require around 60% total digestible nutrients (TDN; e.g. energy) and 12% crude protein (CP), whereas dry, pregnant cows may only need to consume 2% of their bodyweight at 48% TDN and 7% CP. Test your hay for nutrient density, group livestock according to intake requirements, and supplement hay with feeds as needed. You can limit feed hay and meet the remainder of your cows’ nutrient needs by providing supplementation through stored feeds. Contact your County Extension Office or Regional Extension Agent for help determining hay requirements and proper supplementation for your animals.

While summer perennial grazing will begin to wind down as we move toward the winter season, considerations for winter grazing may be beneficial – especially if we receive some fall rainfall. Planting winter annuals on prepared land or over-seeding onto short grazed summer sods can provide grazing in the late fall and winter season. Small grains (oats, wheat, rye), ryegrass, and clovers are excellent species to consider planting alone or as a mixture for winter grazing. If you have the ability to stockpile tall fescue into the late fall months, this is another strategy that may help provide grazing if we receive moisture soon.

Animals that are not productive should be sold to reduce the number of animals that will consume your limited resources. Pregnancy check animals at weaning or at the end of your breeding season to identify and cull open animals. Also identify and cull low performing animals and animals with bad eyes, feet, udders, and dispositions. These animals will only consume resources needed by your quality stock, and the income from their sales can increase funds available for purchasing hay or stored feeds.

The USDA Farm Service Agency (FSA) provides assistance to grazing livestock producers that have lost grazing abilities due to droughty weather. Chambers County is currently listed amongst counties eligible for assistance. If you graze livestock in Chambers County and wish to apply for or learn more about financial assistance for your operation, contact your County’s FSA office at 334-745-4791. For more information on this and other Extension topics, please contact Sarah Dickinson at 256-537-0024, sed0029@auburn.edu or the Chambers County Extension Office at 334-864-9373. The Alabama Cooperative Extension System (Alabama A&M and Auburn University), is an equal opportunity educator and employer. Everyone is welcome.

 

Weed Control in Pasture Systems

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Original article published in extension daily. Author: Katie Nichols

It’s no secret that the summers in Alabama are hot and dry. This year is no exception. Yards and pastures are suffering from heat stress.

An Alabama Extension Crop Specialist has recommendations for farmers struggling with weed suppression in pasture systems.

Weed Control in a Drought

Dr. Steve Li said weed control during a drought is typically very difficult.

“Under drought conditions, all plants slow down growth,” he said. “Plants will develop a thick cuticle and metabolism slows down. They will also try to close the stomata during the day to conserve water. After the stomata is closed, there is very little carbon dioxide in the plant and the photosynthetic rate drops significantly.”

Many herbicides target the photosynthetic process, so with a slowed rate of photosynthesis herbicides may not work as well.

Li said in a drought situation, producers should think twice before going to the sprayer.

“Weeds seem to grow in a quick flush after a rain,” Li said. “Instead of wasting a herbicide application on dry weeds, wait until after a rain to apply. You will most likely have healthier weeds to spray.”

It is important to use surfactant and ammonium sulfate during herbicide application. This will assist plant uptake of the herbicide. Consult the herbicide label for manufacturer requirements.

Whether there is rain or no rain, Li said one option for weed control is to mow the pasture. The weeds are still sensitive to leaf blade in any condition. Another option is to utilize irrigation in the pasture and hay field if it is available to you. A quick shower from the irrigation system would have a noticeable impact on plant uptake of herbicides.

When to Spray Perennial Weeds

Most farmers are familiar with perennial weeds causing issues on the farm. Blackberry and dewberry, ironweed, kudzu, passionflower, Chinese privet, Japanese honeysuckle, Cherokee rose, trifoliate orange and unwanted woody brush are good examples of perennial weeds that cause issues in pasture systems.

The most effective time to spray perennial weeds is in late summer and early fall. Later in the season perennial weeds will begin getting into the reproduction stage.

“Typically, plants are more sensitive to stress and herbicides in the reproductive stage as compared to earlier in the season when they are in the vegetative growth stage,” Li said.

Perennial plants will be making photosynthetic products later in the season and move them into reproductive organs. Spraying herbicide at this point in the year allows the herbicides to translocate into the storage organs of the plant along with the carbohydrates, amino acids and other photosynthetic products, giving the herbicide a better chance of killing the plant and prevent regrowth in future.

“In many cases, the storage organs are also reproductive organs,” he said. “If you don’t kill the storage organs, you do not kill the weed. Kudzu root is a classic example. This is one of the major challenges of perennial weed control. Preventing regrowth and continuous control effort are always required for successful perennial weed control.”

Other Considerations Herbicide Applications

Herbicide applications must be timely and carefully calculated. Spray drift is a factor that could cause lots of problems for sensitive row crops like soybean, cotton and vegetables. When spraying drift is a concern, always use large droplets, lower pressure (around 40 PSI), low driving speed (below 10 mph) and low boom height (18-20 inches above canopy) with a boom-type sprayer. Spray only when the wind speed is less than 10 mph and blowing away from the sensitive crop.

It is important to ensure good coverage. When spraying perennial weeds—especially brush-type weeds—the stand can be very thick, so increasing the sprayer output may help push the spray droplets through the dense canopy. If the weed stand is too thick, mowing may be required before applying herbicides.

“Repeated applications for perennial weed control is the key,” Li said. “You may start with 100 weed plants in one field, and after three years you may only have five plants left. If you do not do something to those five plants and turn them loose, they will grow back and multiply quickly.”

It is a constant battle to suppress the weed population. Weed eradication is difficult, but continuously controlling the population is better than the alternative of letting it run rampant in pastures and hay fields. Growing forage or hay and preventing overgrazing are also critical to weed control. Thin forage or hay, large bare ground and overgrazing always lead to future weed problem if there is a lack of weed-crop competition.

More Information

For more information, visit www.aces.edu and look for the Forage team webpage. More information on herbicide applications in row crops can be found here. You can also listen to the Forage Focus webinar in its entirety here.

Overseeding Winter Annuals to Increase the Grazing Season

Agricultural field on which grow the young grass. wheat

Overseeding winter annuals onto dormant summer perennial pastureland is a powerful tool used by producers who desire to extend the number of months spend grazing their livestock. To overseed winter annuals, producers simply broadcast or drill seed into the desired area once summer perennial growth has ended. Correct overseeding practices lead to the availability of winter annuals from late fall through the spring, depending on the forage species/combination of species planted. Common forages utilized in winter grazing systems from overseeding are small grains (oats, wheat, rye), ryegrass, and clovers. These species can be used in combination with each other to increase length of forage availability or to take advantage of the nitrogen fixing attributes of clovers. Overseedng is a fairly simple technique that leads to high benefits, however incorrect procedures for overseeding can lead to failure of winter annual establishment. Let’s review the benefits and practices recommended for successful overseeding:

Benefits of Overseeding:

Overseeding allows producers to lessen the amount of stored feeds necessary for production through the winter. The increased forage availability from winter annuals allow producers to more economically feed their livestock.

If winter annuals are broadcasted onto or drilled into sods (versus planted in prepared plots), pasture land is better able to uphold its integrity when animals graze after wet conditions or in areas that tend to hold water in the winter months.

Winter annuals are high quality forage and provide excellent nutrition to livestock throughout their growing season.

If a legume (such as clover) is used in the winter annual combination, nitrogen availability in the soil is increased. Legumes naturally fix nitrogen and thus increase nitrogen amounts available to companion plants growing with the clover and to plants growing after the clover’s growth ceases.

Techniques for Overseeding:

Overseed winter annuals onto pastureland in good condition for plant growth. Pastures should be well-drained and not subject to flooding on wet winter days. A soil test should be taken, and lime should be properly applied several months before overseeding. Potassium and Phosphorus should be applied while overseeding as directed by your soil test, and Nitrogen should be applied after winter annuals are up to minimize uptake and continued growth from summer forages.  High quality seeds should be used, and legume seeds should be inoculated just before planting.

Pastures should be grazed down closely or clipped/forage removed prior to overseeding. Burning pastures is a less desirable option, due to inconsistency of burn, but is better than overseeding onto a sod with high levels of vegetation.

Disking of seeds into the sod is not a requirement for overseeding certain species in optimal pasture conditions. However, every pasture is different and should be evaluated prior to overseeding to determine if and how much disking is required. Factors that should be evaluated are desired date of planting (disking allows for earlier planting), soil type, species to be overseeded, and forage remaining on sod. If existing forage is not grazed or clipped down, tillage to disrupt current vegetation is necessary. One or two rounds of light disking can be beneficial to overseeding programs, and it is important to note that disking does not damage summer perennial return in subsequent years.

When to Plant:

Winter annuals should be overseeded later than if they were planted on prepared land. Since remaining summer perennials are still intact on many pastures used for overseeding, it is important to overseed after summer plants stop their growth. If overseeding is done too early, summer grasses that continue to grow will overwhelm and outcompete your winter annuals. In central Alabama, it is recommended to overseed winter annuals from October 15-October 30. If earlier planting on sod is desired, summer sod should be very thoroughly disked such that it is destroyed or weakened. In Bermudagrass fields, paraquat may be sprayed on summer pastures to provide an “early frost affect.” In both cases, overseeding can be done 2-3 weeks earlier than in standard conditions.

It is also important to overseed winter annuals by the October 30 cutoff date in central Alabama to allow for the young plants to germinate and be well established before the blunt of winter sets in. Increased survivability during winter frosts are noted in healthy, well established stands. In addition, if small grains are to be planted for utilization in late fall/early winter, adequate time is necessary post planting to allow for grazing availability.

Once winter annuals are ready for grazing, stock areas appropriately such that large, dense areas of winter annuals are not left on pastures. This could reduce summer forage emergence.

Click here to view a document with more facts on overseeding.

If you have questions regarding overseeding techniques or other fall planting guidelines, contact myself or other members of the ACES Animal Science and Forages Team.

Sarah Dickinson, M.S.

Regional Extension Agent I

Animal Science & Forages

Alabama Cooperative Extension System

Cell: 256-537-0024

Office: 2560-825-1050

Email:sed0029@auburn.edu

Serving Chambers, Clay, Cleburne, Coosa, Lee, Randolph, Shelby, Talladega, and Tallapoosa Counties

Let’s Celebrate

LaFayette Grows Healthy Kickoff September 8th

I  have a question for you: “What’s healthy and growing in Chambers County?” The answer: Healthy resources and opportunities for YOU and your family! That’s right. So, what’s new? Well, there’s the LaFayette Raised-bed Community Gardens, the LaFayette Farmers Market, and the outdoor Walking Trail. Soon we will also install sturdy outdoor exercise equipment. Shortly thereafter, we will install children’s playground equipment.

It is time to celebrate these accomplishments and see how you can benefit from these opportunities!!!  How???  By having an epic Chambers County CDC Grant Kickoff Thursday, September 8th, 2016 from 4:00 PM to 6:00 PM Central.  Location: 1084 Alabama Highway 77, LaFayette, AL 36862 (Chambers County Agricultural Center). There is no cost to attend.

What will be available? After the Opening Ceremony you will have access to:

  • Fitness education using Stretch bands (first 100 participants can keep their free bands)
  • Health and nutrition information by the Auburn University School of Nursing, the Edward Via College of Osteopathic Medicine (VCOM), and EAMC – Lanier experts
  • Raised-bed gardening education
  • Sheriff Sid Lockhart’s famous grilled delicacies
  • Nutrition Education Program Cooking Demonstration

How did these resources and opportunities occur? Chambers County Extension and a gamut of community partners have been tirelessly working to prevent and reduce obesity in Chambers

Guidelines for Submitting, Interpreting, and Using Soil Tests

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Providing adequate nutrition to one’s animals is a common goal of livestock producers. Without adequate nutrients and minerals, animals are less productive and return less profit. Many producers understand that one cannot simply “make up for” a protein deficiency by providing animals extra energy, and that dollars are lost by over feeding animals past their nutrient requirements for desired production. We have tools available to help us understand the nutrient requirements of our livestock, help develop a ration (feed), and help determine how much of that ration animals should eat.

However, have you ever considered that these basic principles apply to your forages? To achieve maximum performance of one’s forages, a soil test can be performed to determine the nutrients available in your soil. Then, the requirements of the forage you wish to grow are considered, and fertilizer recommendations are reported from the soil test. Producers can then use test results to apply the correct amount of each nutrient in their specific pasture. More forage growth is seen because your forages have the correct amount of the nutrients they require, and less nutrients (and money) are wasted compared to fertilizing fields with a “best guess” mixture and amount that lacks scientific calculations based off your soil.

How to obtain and interpret a soil test:

1: Take Soil Samples:

Soil can vary in nutrient composition depending on its location in the field. Therefore, it is  important that your soil sample contains soil from each part of the field you wish to fertilize. It is recommended that 15-20 uniform samples of soil are collected from your field. These samples should be 4-6 inches deep and collected in a planned pattern to insure all areas are inspected. Place samples in a bucket, mix well, and place 1 pint in a soil collection box. Soil sample boxes, information sheets, and other supplies for soil testing are available from your county Extension office. When mailing your samples, enclose the filled soil boxes, the information sheet, and a check or money order to cover service charges in a cardboard shipping box and mail to the soil testing lab. More details on sample collection and sample submission can be found on Alabama’s soil test website.

2: Interpreting your Soil Sample Report:

In this article we will focus on the Limestone, Nitrogen(N), Phosphorus(P), and Potassium(K) recommendations from your soil test.

Limestone: Limestone application helps raise the pH of your soil. The pH scale ranges from 0-14 and helps you determine how acidic or basic your soil is. Soil with a pH lower than 7 is considered acidic, soil with a pH of 7 is considered neutral, and soil with a pH higher than 7 is considered basic. In general, if pH drops much below 6, it is time to lime your pasture to raise pH. Apply the amount of Limestone recommended to your pasture. For help with Lime calculations, follow this link.

N, P, K: The amount of each nutrient needed by your pasture is listed in your soil test. Amounts will vary, but the goal of applying fertilizer is to purchase a mixture that best allows these recommendations to be met.  If your soil test recommends 60 pounds of N, 40 pounds of P, and 40 pounds of K, you can custom order this mixture or use a pre-mixed fertilizer to meet your soil’s requirements. For more information on how to calculate the amount of fertilizer needed or the fertilizer mix to use, contact your REA or visit a help page by clicking on the chemical fertilizer calculator help page or the organic fertilizer calculator help page.

3: When to fertilize your pasture:

The key to successful fertilizing is to replace nutrients when they are used by the forages growing in your soil. Different management strategies (grazing vs cutting hay) remove nutrients at different rates and require different fertilizing schedules. Links to fertilizing recommendations for various grasses are given on the ACES website. Click here and select your specific forage to view fertilizer recommendations.

If you have questions regarding submitting and using soil tests, contact myself or other members of the ACES Animal Science and Forages Team.

Sarah Dickinson, M.S.

Regional Extension Agent I

Animal Science & Forages

Alabama Cooperative Extension System

Cell: 256-537-0024

Office: 2560-825-1050

Email:sed0029@auburn.edu

Serving Chambers, Clay, Cleburne, Coosa, Lee, Randolph, Shelby, Talladega, and Tallapoosa Counties

Soil Testing: Why It’s Important and How to Get Started

Did you know there is a simple tool available to help landowners and producers know how much fertilizer to use in their gardens, lawns and fields? This tool is a soil sample test. A soil test first determines the nutrients available in your soil. Then, the nutrient requirements of the forage you wish to grow are considered and fertilizer recommendations are provided based off your soil test. You can use these recommendations to apply the correct amount of each fertilizer component in your pasture. More forage growth is seen because your forages have the correct amount of required nutrients. Additionally, less nutrients (and money) are wasted compared to fertilizing fields with a “best guess” mixture and amount that lacks scientific calculations based off your soil.

Taking a soil test in your pasture is easy. You just need to contact your local Extension Office or Regional Extension Agent. You should collect about 20 samples of soil from various locations in your field. Dig soil 6-8 inches deep, or use a soil probe that can be borrowed from the County Extension Office or Agent. Once samples are collected, mix them well and place 1 pint in a soil sample box to send to the Soil Testing Laboratory at Auburn University. Soil sample boxes, information sheets, and other supplies for soil testing are available from your County Extension Office. More information can be found online at: http://www.aces.edu/anr/soillab/forms/index.php

Your soil test results allow you to properly fertilize your pastures, which leads to better forage growth and less waste. Why guess next time you purchase fertilizer? Get optimum forage growth and increased forage availability for your livestock by performing an easy soil test. For more information on this and other Extension topics, please contact Sarah Dickinson, Animal Sciences and Forages Regional Extension Agent, at 256-537-0024, sed0029@auburn.edu or the Chambers County Extension Office at 334-864-9373. The Alabama Cooperative Extension System (Alabama A&M and Auburn University), is an equal opportunity educator and employer.

The Worms Go Marching: Combating Fall Army Worm Infestations

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Many producers vividly remember their encounters with fall army worms. The discovery of large, later stage army worms in one’s pasture quickly leads to tremendous destruction of valuable forage. Producers generally see the damage of these pests in late July/August through early fall.

Mature fall army worm moths lay eggs that hatch after just 2-4 days. Upon hatching, young army worms begin to feed and grow. Army worm growth occurs in stages, with the worms’ capacity for destruction increasing with each growth stage. Army worms reach full size 2-3 weeks after hatching, and will then burrow into the soil for 10-14 days. Afterward, they emerge as mature army worm moths and continue the life cycle.

A key to managing fall army worms is the understanding of their life cycle and growth phases. Shortly after hatching, small worms are far less destructive than their more mature counterparts. Figure 1 demonstrates the amount of damage observed from worms at each growth stage. Notice that the vast majority of damage occurs during the last growth phase (which occurs 2 weeks after their hatching). Scouting for worms before you notice their destruction allows for one to spray and kill the worms while they are small and in earlier, less destructive growth phases. This reduces their negative impacts on one’s pastures and allows for better control of future infestations since the lifecycle is interrupted.

Fall armyworm

Use a sweep net to scan your pastures for worms. Follow the links to view a video or article on proper sweep net usage. Treatment for fall army worms is effective if worms are found early on. If infestation is discovered too late, major destruction may be unavoidable. This is why it is essential to scout for worms BEFORE you notice their impact on your forages. Once discovered, worms can be killed by spraying. Click here for an article that contains suggestions for fall army worm control.

Also, remember to help your fellow producers know if army worms are in your area by reporting occurrences of fall army worms. Click here to view the updated map of army worm infestation in Alabama, and let us know if you have fall army worms.

More information about fall army worms is available at the Alabama Forages Pest Management website in the Fall Armyworm section.

If you have questions regarding managing fall armyworms, contact myself or other members of the ACES Animal Science and Forages Team.

Sarah Dickinson, M.S.

Regional Extension Agent I

Animal Science & Forages

Alabama Cooperative Extension System

Cell: 256-537-0024

Office: 2560-825-1050

Email:sed0029@auburn.edu

Serving Chambers, Clay, Cleburne, Coosa, Lee, Randolph, Shelby, Talladega, and Tallapoosa Counties