Tag Archives: forage

Meet the Southern Piedmont Agricultural Research and Extension Center.

Posted on September 1, 2014 by laurab08

More commonly abbreviated as “SPAREC” by those familiar with it, this center is one of Virginia Tech’s eleven experiment stations, or “ARECs,” scattered across the state. The stations were each established to perform research and outreach matching the needs of local agricultural industries.

Sorghum and sorghum-sudangrass hybrids are grown at the station for the livestock forage research program.

For the Southern Piedmont region of Virginia, tobacco remains a key agricultural product with deep historical significance, and forage production is a critical factor keeping cattle, goat, sheep, and horse operations in the area profitable. To serve the farmers growing these products, SPAREC, located in Blackstone in Nottoway County, provides support and cutting-edge information to farm producers. The station has also performed work in small fruit, field crop, and specialty crop production.

While many people in the eastern, central, and northern part of Virginia have never seen tobacco and the number of tobacco farms in the state has dwindled, it remains the 10th ranking agricultural commodity produced in the state just behind wheat, generating $109,000,000 in receipts annually. Much of the tobacco research at SPAREC centers on improving crop management, testing new materials and practices in the greenhouse and the field, and evaluating new varieties. However, the tobacco projects honing in on plant pathology, nematode management, plant breeding, conservation tillage, energy efficiency, and precision application technology have broad implications for other agricultural industries.

Dr. Charles Johnson, Dr. David Reed, and Dr. Carol Wilkinson each work in one of the unique tobacco research areas at SPAREC. For most of the trials performed at the station, tobacco plants are started in float trays in greenhouses and transplanted to test plots in the spring. The stage after transplanting is called “lay-by,” followed later by flowering when the plants grow tall. Tobacco plants produce pink flowers, but these are “topped,” or removed, so that the plant utilizes its resources on vegetative production. During ripening later in the summer, lower leaves of “flue-cured” tobacco varieties are harvested first, followed later by upper leaves. The leaves are packed in a curing barn and dried by circulating air. “Burley” and “dark-fired” tobacco varieties are harvested all at once; the stalk is cut at ground level, speared on a stick, and hung in a barn. Most Virginia tobacco grows in the counties along the south of the state, where soil characteristics, industry infrastructure, and growing conditions favor production.

Tobacco grows pink flowers, which are “topped” to promote vegetative growth.

Tobacco remains a primary crop at SPAREC, but forage research is an equally critical program at the station thanks to increased interest from farmers who want to mitigate high livestock production costs by improving forage quality and grazing efficiency. Dr. Chis Teutsch has spent years running trials, compiling variety data, creating forage publications, and speaking at Extension and industry events throughout his years working with legumes, Bermuda grass, crab grass, cool-season grasses, and warm-season annuals like brown mid-rid forage sorghums and sorghum-sudangrass hybrids.

Dr. Chris Teutsch manages a Bermuda grass research trial at the station.

To enhance the depth and breadth of the forage program, SPAREC saw the recent addition of a cattle-handling facility and installation of fencing and water troughs on new pasture ground. With the addition of Ruminant Livestock Specialist Dr. Brian Campbell in 2012, the station brought cattle onto the premises for forage utilization studies, grazing schools, demonstrations, cattle management workshops, and research. In fact, since outreach is an important part of the Extension forage work done at SPAREC, producers have numerous opportunities to come visit the station’s cattle facilities and forage plots including a field day each year in July and the many workshops held at the station throughout the year.

Outreach does not stop with forages. The tobacco specialists also organize a widely-attended annual field day in July and several production meetings for farmers in the winter. Thanks to its central location providing easy access for farmers in several surrounding counties, the station frequently hosts workshops put on by nearby county Extension agents covering topics from beef production to greenhouse management to grain crops.

The station is equipped with wagons to transport visitors during field days.

Farm staff have prepared a corn maze for the 2014 Family and Farm Day on September 13th.

Youth agricultural education has become a priority in recent years. Visitors to the annual SPAREC Family and Farm Day witness the station’s commitment to this task and long-standing partnerships with community organizations and agencies. The end result is dozens of hands-on activity stations for the hundreds of children and adults who attend the event to learn about agriculture. This year’s Family and Farm Day, set for September 13 from 9-2, will teach visiting children about soil health, conservation, farm life, livestock, vegetables, crops, insects, wildlife, safety, and farm equipment. SPAREC also hosts Ag Days for 3rd and 5th grade classes for two weeks each April. The Ag Day programs draw buses of students from public and private schools in each county surrounding the station. They continue to grow in attendance each year thanks to the real-life application and reinforcement of classroom lessons and standards of learning they offer.

Since its formal establishment in 1972, the Southern Piedmont Agricultural Research and Extension Center has been a force for changing, improving, and modernizing agriculture. The end result is a stronger local agricultural economy built by individuals empowered by the knowledge they have gained from the station’s research and outreach.

Additional Resources for Readers:

Southern Piedmont AREC website

Family and Farm Day flyer

Information about Virginia Tech’s ARECs across the state

Tobacco research, publications, and resources

Forage research, publications, and resources: here and here

Beef cattle publications and resources

Early colonial history of Virginia tobacco from the National Park Service

Meet Robert Harper, Cattle Producer.

Posted on January 24, 2014 by laurab08

Robert manages cattle as part of a partnership called Cross River Farms, LLC. Robert’s operation is located at Dungeness Farm, which has fascinating roots in early American history. Dungeness was built by Isham Randolph in the early 1700s, and Thomas Jefferson’s mother was raised there. Today at the Goochland farm, Robert specializes in several aspects of cattle production. In addition to running a cow-calf operation that includes Red Angus cattle, he custom-raises Holstein heifers for a nearby dairy farm. He also manages a group of females for the Amelia Area Cattlemen Heifer Development Program. Heifers in this program are produced and owned by individual livestock producers from across the region, but they are brought together to live at Cross River after they are weaned. They are bred in December and undergo further development through the winter. In the spring, most return to the herds on their home farms where they were born. A few are sold in April to buyers looking for high-quality females for their cow-calf herds.

To keep up with so many cattle, Robert must carefully manage his feeding program to ensure that he has adequate pasture and hay available to the cattle throughout the year. Because each set of cattle on his farm has a unique purpose, Robert must tailor his feeding and management to suit the needs of each particular group. His brood cows in his cow-calf herd need enough energy and protein from feed to produce milk for their calves from birth until weaning. The calves, in turn, need to grow steadily before and after weaning so that they will perform well at a finishing operation later in life and provide high-quality beef for consumers.

However, the young female calves in the heifer development herd require a different approach. Unlike their counterparts that will not remain in a herd for many years and must instead reach a robust “finished” weight in a timely fashion, the heifers need to grow at a more moderate pace. The young heifers must build bone, fat, and muscle tissue at a rate that promotes longevity and sound reproductive traits in preparation for a future career living on pasture and raising their own calves on a cow-calf breeding operation. To meet this goal, the heifers are run on pasture and receive a daily ration of silage, commodity feeds, hay and grain to grow and mature in preparation for breeding. Robert periodically weighs the Cross River heifers to gauge their growth and make management decisions.

Once the heifers reach an appropriate age and body size and undergo a reproductive soundness check from a veterinarian, they are ready to be bred. Robert Harper and the rest of his fellow cattle producers in Virginia have the option to use a live bull for breeding or rely on artificial insemination. Both options follow the natural cycle for cattle reproduction, allowing females to produce one calf each year as they would do if left to their own devices. After breeding, cows remain pregnant for nine months before calving, and the calf nurses the cow on pasture for several months before it is weaned.

Unlike most horses and sheep which only can be bred during certain seasons, cattle cycle naturally throughout the entire year. However, instead of leaving the bull with the herd full-time and allowing heifers and cows to get pregnant and calve sporadically, producers aim to confine calving to a single season, often the fall, so that calves within a herd are all of approximately the same age and can receive the same health treatments such as vaccinations at the same time. This practice reduces stress on the animals by limiting the number of times that the herd must be brought in close proximity to humans for handling. For these reasons, Robert and the Amelia Area Cattlemen choose to breed the heifers at Cross River in December so that they will calve during the following fall season. To ensure that the animals can all be bred around the same time, they follow a heat synchronization program that causes all of the heifers to cycle on the same schedule. Once the group of heifers collectively comes into heat, they are bred. This herd is first bred using artificial insemination. This advanced, well-studied reproductive method puts little stress on the heifers and allows herd managers to bring cutting-edge genetics into the herd from bulls all over the country.

The heifers at Cross River wear heat detection patches. When the silver surface of the patch is rubbed off, the heifer is ready to be bred.

If a producer wants to use a live bull, he or she will not have to spend time synchronizing cow and heifer cycles or watching animals for signs of heat—the bull takes on this job himself. However, a locally-purchased bull’s genetic traits may not always be predictable, and the producer will need to rotate a new bull into the herd every few years to ensure that the quality of the herd and its collective genetic potential continue to progress. If producers choose instead to buy units of semen from a company that offers a catalog of bulls available for artificial insemination, they can select semen from bulls with well-documented performance traits that match their goals to improve traits like mothering ability, meat quality, animal build, or a plethora of other factors.

Bulls that are selected for use in an artificial insemination program are considered the “top of the line” in the industry and are subject to extensive performance testing and offspring data collection. Hence, producers like Robert Harper and members of the Amelia Area Cattlemen who choose to breed via artificial insemination have the means to improve their herds far more quickly and increase their genetic diversity far more easily than they could with a live bull. However, old-fashioned bulls still have their place and there are still many high-quality bulls sold locally that may never be featured in a semen company catalog. These animals are useful even to a herd that relies on artificial insemination, as not every heifer will successfully conceive through this means. Hence, the “cleanup bull” is turned out with the artificially-inseminated heifers so those that do not “catch,” or get pregnant, come back into heat and have the opportunity to get bred by the bull.

Like many producers, Robert likes to stay on top of the curve and adopt progressive practices that improve the health, performance, and longevity of his animals and the animals he custom-raises for fellow cattlemen across the region. His creative edge has allowed him to increase the scope of his operation over the years, but anyone who visits the Cross River Farms partnership at Dungeness can easily sense that Robert’s passion for working hard to raise high-quality cattle has been the ultimate force driving his success.

Additional Resources for Readers:

Getting Started in the Cattle Business in Virginia

Replacement Heifer Development Steps

Ten Steps to Buying the Right Bull

Artificial Insemination vs Natural Bull Service-Where are the Economic Benefits?

Meet Windy Springs Farm.

Posted on November 21, 2013 by laurab08

Operated by the Roberts family of Amelia, this farm is home to a herd of beef heifers, cows, and their calves. It is one of the many “cow-calf” operations that contribute to Virginia’s inventory of nearly 1.5 million cattle and calves. In fact, the cattle industry is ranked second-highest in the state, standing just behind broilers which bring the highest value in receipts. What many people do not know, however, is that not all beef producers in this area make a living raising cattle all the way from birth to harvest. In fact, cattle production is often divided into stages, and in the conventional industry different types of farms may specialize in different stages of cattle management.

All beef animals start out as calves, but before the calf comes the brood cow. Left to her own devices, a good female can raise a healthy calf if she is provided with pasture or hay that meets her nutritional demands while she is pregnant and when the calf is nursing. In fact, raising heifers and cows that subsist on grass and hay is by far the most efficient management system. Furthermore, a forage-based system where cows graze year-round in the field promotes healthy rumens in cows, provides a clean calving environment, and mitigates contagious diseases that can worsen when very young animals are kept in tight quarters. Contrary to some misconceptions, most cows in a conventional commercial production system are only given some feed when nutritional needs cannot be completely met by forage, and calves spend seven or more months with their mothers in the field consuming milk and pasture before they are weaned. This is the calf production step of the beef industry; farms that specialize in maintaining cows for breeding and raising calves from birth to weaning are generalized as “cow-calf operations.”

Weaned calves, now known as feeder cattle, may then go to a “backgrounder” or “stocker” operation. They may weigh several hundred pounds at weaning time on the cow-calf operation, but they may undergo a period of additional weight gain and adjustment to peer groups on a stocker operation. The final step is finishing, where cattle are fed to an appropriate weight and then processed for the wholesale and retail market. Virginia feeder cattle are often sent to states like Pennsylvania, Kansas, Iowa, and Ohio for finishing because these states offer an advantage in feed availability and processing.

Although the commercial cow-calf, stocker, and finishing operation sequence is most common, there are exceptions. Farmers who sell directly to consumers at farmers markets and other venues may choose to raise animals from start to finish and take responsibility for processing and marketing. This system is most common on small direct-market operations located in proximity to large numbers of urban consumers. Other farms may specialize in producing purebred animals for high-quality breeding stock, and some may specialize in raising show cattle, heritage breeds, or hobby animals. These operations are far less common than conventional commercial operations due to the nature of their production and marketing needs.

Virginia is fortunate to experience adequate rainfall during average years, and producers who manage their pastures diligently are capable of maintaining medium to high-quality forage for their animals nearly year-round. Amelia County, where Windy Springs Farm is situated, is no exception. In fact, crop production and cattle production overlap in Central Virginia where land is suitable for either use. Hence, Virginia has a reputation primarily as a cow-calf state and Windy Springs is one of many cow-calf operations in the region. Producers in this area often time breeding so that calves will be born in the fall of the year. However, some operations choose a spring calving season.

The Roberts family aims to have all of their heifers and cows calve around the same time so that each calf is at the same stage of growth as its peers. Why is this important? Cows and calves need treatments like vaccination and parasite control in order to remain healthy, grow properly, and prevent disease outbreaks. Windy Springs calves must also be tagged so that they can be identified and records can be made each time they are handled in the future. The herd must be brought through the farm’s handling facility for these tasks to be performed with minimal stress. If all calves within a group are approximately the same age, the whole group can receive certain health treatments at once. This allows the farm to be more efficient and reduces the number of times the animals must be handled.

Windy Springs has a handling facility designed to minimize stress. Animals start in a group pen and are walked down an alley towards a chute and a head gate, which humanely stabilizes the animal while it is treated. Good handlers like Johnny and Lawson Roberts rarely keep animals in the head gate for more than a minute even when completing multi-step tasks, and some chores performed at certain times of the year can be completed in just seconds per animal. Cows have a herd mentality, so they follow their peers in line as they walk towards the chute and they rejoin the herd immediately in the pasture after they are treated. The end result is a vigorous crop of calves that will remain healthy later in life when they are transported to another operation or comingled with new peers. Windy Springs Farm, like many cow-calf operations, takes pride in maintaining a high-quality herd of cows and working long hours to raise calves that excel on the farm and provide a top-notch product for the consumer.

Additional Resources for Readers:

Getting Started in the Cattle Business in VA

Beef Cow/Calf Herd Health Program and Calendar

Beef Cattle Management Publications

Meet David Smith’s grain sorghum.

Posted on October 24, 2013 by laurab08

David raises cattle on his farm in central Virginia, but this year, he also gave sorghum a shot.

Sorghum—or milo, as some call it—is a summer annual plant that was developed in the Upper Nile region of Sudan. It is quite versatile. Most varieties have been developed for grain harvest, while others are chopped for silage as an alternative to corn. Sorghum-sudangrass hybrids are becoming increasingly popular for hay and forage because they can be grown during the summer months when cool-season grasses like tall fescue hit a slump. Varieties that make up the “sweet” sorghums are valued for the juices that are extracted from the plants’ stalks and turned into sorghum syrup, a homestead specialty that has become rather rare. Furthermore, faculty at Virginia State University and other research centers are developing varieties of sorghum that are suitable for use in biofuel production.

Sorghum has been grown for grain in many states for a number of years, but many new producers in Virginia and North Carolina, including David, have recently decided to try it thanks to an increase in demand from livestock operations in the state. The rising costs of fuel, labor, and fertilizer in combination with past periods of drought have raised the cost of feeding corn on these operations. Managers are looking for alternate feeds that equal corn in nutritional content, so sorghum has become a good pick. Most grain sorghum produced in the U.S. is used as animal feed, but sorghum is growing increasingly popular as a gluten-free, high antioxidant food in the U.S. Many farmers favor sorghum because it is more drought-tolerant than corn. While corn and sorghum may both curl up during a dry year, sorghum can wait longer for moisture to return and will bounce back readily after a rain. Sorghum also adds flexibility and diversity to a crop rotation, resulting in easier disease and pest control.

Sorghum plants closely resemble corn during their early growth stages.

David was among many farmers in the state who faced some challenges during the early part of the growing season. Excessive rain washed nutrients out of the soil in high parts of fields, leaving seedlings with shallow roots temporarily deficient in phosphorus. Seedlings in low areas, especially in flat fields in eastern Virginia, faced the risk of drowning. The heavy, constant rains also created a good environment for pressure from seedling disease issues like damping off and root rot. Fortunately, David’s sorghum weathered the late spring and grew out nicely. The same is true for most of the growers across southside and central Virginia. In fact, the middle and late summer moisture was a boon for both corn and sorghum plants in later stages of development.

This sorghum has developed a head but the gain has not filled yet.

Grain sorghum looks like corn throughout its early growth stages, but rather than developing ears, it grows a head with small, rounded seeds that appear as pyramidal cluster. The grain must be harvested before it becomes dry enough to “shatter” or fall off prematurely before or during harvest. Ideally, it should be harvested between 17 and 20% moisture to prevent losses at harvest. However, grain at these moisture levels will spoil easily during storage, so the harvested grain must be dried so that it reaches a safe storage moisture level of 10-12%.

The grain shown here is well-developed and almost ready for harvest.

The future of sorghum in the state looks bright. Sorghum grain is not a complete replacement for corn and not all growers have the equipment to grow and dry it or access to an increasing market, but acreages in parts of the state near large buyers are expected to increase. This year, the drought-ready traits of the crop did not have an opportunity to shine. However, in view of the uncertainty of next year’s weather, many sorghum producers will be better equipped to withstand a dry year. Sorghum is not new to everyone, but thanks to new growers like David and expanding markets in and around the state, it is enjoying a resurgence and helping farmers mitigate risk and diversify their operations.

Additional Resources for Readers:

Sorghum Marketability

Sorghum Variety Data

United Sorghum Checkoff Program Mid Atlantic Production Handbook

Central Virginia Ag Spotlight

Connecting communities to agriculture

Tag Archives: forage

Meet the Southern Piedmont Agricultural Research and Extension Center.

Meet Robert Harper, Cattle Producer.

Meet Windy Springs Farm.

Meet David Smith’s grain sorghum.