Franke
Dijkstra has always been a revolutionary.
His ancestors had been dairy farmers in Holland for
more than 500 years until he – literally -- broke new ground,
choosing to raise row crops instead.
(Above: Franke Dijkstra, right, discusses
conservation tillage with a group of Alabama Extension agents and
specialists who visited his farm in Spring, 2001. Dijkstra has
emerged as one of Latin America's most renowned experts in no-till
farming techniques and has traveled widely throughout the region and
North America sharing his expertise. His 5,000-acre farm also
is a frequent stop for international visitors wishing to learn more
about no-till production techniques.)
Twenty-six years ago, the Dutch-born producer also
became one of only three farmers in Brazil to adopt no-till farming
practices, even though neighboring farmers initially thought he was
nuts.
"When I first began doing no-till, everyone
thought I was crazy," he says. "But I’ve always liked
doing something different."
Dijkstra saw plenty of reasons to try no-till –
first and foremost because of heavy rainfall, a constant presence in
Parana, Brazil, where he farms.
"In the past, my average loss (from rain) was
30 tons a hectare (about 13 tons an acre)," Dijkstra recalls.
"I’ve even seen some instances where 300 or 400 tons go down
the river with one rain."
He also remembers how heavy rains washed away tilled
soil, leaving his soybean plants leaning in fields like the Tower of
Pisa.
Faced with these challenges, Dijkstra was convinced
conservation tillage was the only way to go. But that’s not to say
he didn’t encounter his share of problems adapting to the new
technique.
"We hadn’t yet mastered the program, and
no-till often seemed a lot like no telling," he recalls with a
chuckle.
After three years, Dijkstra began experimenting with
cover crops, based on research showing their green-manure value.
In time, Dijkstra began to see the differences he
could make through crop rotation and using cover crops in the
winter. He also began appreciating these cover crops, not only for
the green-manure value they provided but also for the role they
played in protecting the soil.
"It changed everything," as he recalls.
Black oats, he learned, provided excellent covering
with good weed control and rooting. On the other hand, legumes,
which provided nitrogen, failed to provide sufficient protection to
the soil because the rapid decomposition of their residue. But he
also learned that grass crops increased soil nitrogen and residue
and organic matter.
Dijkstra currently double-crops soybeans and wheat
as well as corn and wheat. He also maintains a rotation of 50
percent corn and 50 percent soybeans in the summer and 50 percent
oats and 50 percent wheat in the winter.
Three years after adopting no-till, Dijkstra could
see his efforts paying off in other ways, especially in the levels
of organic matter returned to the soil.
When Dijkstra first cleared native grasslands in
1964 under a conventional tillage system, the soil consisted of
about 3.5 to 4 percent organic matter. However, after 12 years of
soybean planting under conventional tillage, those levels had
declined to between 1.8 and 2.2 percent.
Within only 10 years of planting no-till, organic
matter jumped to 5 percent.
Yields have also improved dramatically. Corn posted
the most dramatic gains – a factor, Dijkstra says, was helped
along by steady improvements in corn varieties. Soybean yields also
grew consistently until 1991, but reached a plateau of about 30
bushels an acre – a slowdown he attributes to a decline in the
introduction of new varieties. Since 1991, however, yields have
increased to about 49 bushels an acre.
As one of the principal pioneers of conservation
tillage in Brazil, Dijkstra has become something of a flying
Dutchman, traveling throughout Latin America and the United States
to share his extensive knowledge of no-till techniques.
Dijkstra’s farm also has been a frequent stop for
many Southern farmers, researchers and Extension professionals who
are working to improve conservation tillage systems in the United
States.
Recently, Dijkstra shared his experiences with
no-till farming at the 25th Annual Conservation Tillage
Conference, held June 24-25 at Auburn University.
"Franke has a message for all of us," says
Dr. Paul Mask, an Alabama Extension agronomist who has toured
Dijkstra’s farm. "He never took ‘no’ for an answer,
despite all of the conventional wisdom of the time."
"I think that is a lesson for all of us here in
the United States. We simply can’t say,‘it won’t work.’ We
will have to adapt our research to make it work."
"Fortunately, our farmers, like Franke, are
making it work."
(Source: Jim
Langcuster, Extension Communications Specialist, 334-844-5686)
Article
in MS Word
Article
in Text