Rethink alfalfa for beef cattle By James D. Ritchie
The queen of forageskeeps the crown, even with higher costs of maintenance.
If you're going to bale hay, why put up anything except
alfalfa? asked Shane Roach. "Alfalfa is excellent cow feed. Per pound of TDN
[total digestible nutrients], it's the cheapest feed we produce," he said.
As manager of Niangua River Ranch, Roach oversees 450 beef
brood cows, 500 goat does and a varying horse population that averages about
100 headÑand all species like alfalfa.
"On a per-acre basis, alfalfa is not cheap to establish and
manage," he admitted. "But since I have started putting up alfalfa, my feed
bill has dropped dramatically. I used to buy a lot of range cubes. About the
only cubes we buy now are as a Ôconvenience' feed, to toll cows up when we need
to check them or work them. Feeding alfalfa hay to beef cows has changed our
entire operation."
Shane Roach gets a nod of agreement from Eldon Cole,
University of Missouri-Columbia (UMC) extension livestock specialist. "Per ton
of quality forage, alfalfa is the cheapest protein you can feed beef cows.
We've compared alfalfa with several supplements and alfalfa invariably comes
out on top," said Cole.
"And, it doesn't take a lot of land to produce all the
alfalfa a beef herd needs," added Roach, who grows about 60 acres of alfalfa in
the narrow river bottoms on the ranch. "With dryland alfalfa, you should get
three to four cuttings each year, so anyone with a few acres of decent hay land
can grow a lot of alfalfa."
However, as Roach said, establishing and maintaining a
productive alfalfa stand is not cheap. Melvin Brees, UMC extension economist,
puts the cost of establishing an acre of alfalfa in northern Missouri at about
$300, not including a charge for land.
Alfalfa does best on a deep, well-drained soil with decent
water-holding capacity. Lime is the single most important fertility concern for
establishing and maintaining a high-yielding stand; the new alfalfa field
should be limed to at least pH 6.7 a year or more before seeding.
Field preparation should also begin well ahead of the
seeding date. And, since tillage before stand establishment is the last chance
to incorporate relatively immobile plant nutrients, adequate levels of
phosphorus, potassium and lime should be worked into the seedbed. Incorporated
phosphorus is typically more efficient than top-dressed phosphorus.
Time of seeding is important, but not critical. Fall
seedings usually contend with fewer weeds and are favored by alfalfa growers
south of about the northern tier of Missouri counties. North of that line,
early frosts can kill out new seedings, so spring establishments are more
popular.
"We usually seed alfalfa in late May or early June," said
Shane Roach. "We're set up to irrigate out of the river and that lets us get by
with doing it that time of year, and that's about the only time we irrigate
alfalfa."
Roach believes in planting quality seed. The most recent 30
acres he established was seeded to WL 342 variety, an early maturing disease
resistant alfalfa. WL 342 seed costs about $3.25 per pound, compared with
common alfalfa varieties at $1 to $1.50 less per pound.
But Roach harvested 2.6 tons of hay per acre in four
cuttings the first full year after seeding; he estimates that yield at a
half-ton or more over what common alfalfa would have yielded.
"Another half-ton of hay per year over the life of the stand
more than pays back the extra cost for seed," he reasoned.
Roach takes off the first cutting as soon after April 20 as
he can get the hay mowed and makes the second cutting 26 to 28 days later.
"There's a better than even chance the first cutting is
going to get rained on," he added. "When that happens, we bale alfalfa at about
50 percent moisture and wrap the bales in plastic. But I make everything else
as dry hay.
"Alfalfa weevil is a problem about every year," he
continued. "But by taking off the first cutting as early as we do, we don't
usually have to spray for weevil until after that first cuttingÑand sometimes
not until after the second cutting. I make fertilizer applications after each
cutting through the season. I usually forgo what would normally be the last
cutting, and I make a fall fertilizer application after our last cutting. That
promotes root reserves to help the stand, and it lets alfalfa begin growing
earlier the next spring."
Niangua River Ranch also grows several acres of hybrid
Bermudagrass, primarily for summer graze. Roach also bales Bermudagrass hay for
both cows and horses.
"We graze stockpiled fescue in fall and early winter; that's
fescue's most valuable use for my purposes," he said. "I start supplementing
the fescue with alfalfa hay or balage in mid-autumn, adjusting the amount of
alfalfa to the value of the stockpiled fescue. And I start feeding my poorest
quality hay firstÑhay that has been rained on or is weedy. As we get into
winter, we increase the amount of alfalfa fed, until by the time fescue gives
out about the first of the year, the cows are virtually on free-choice
alfalfa," said Roach.
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