No-Till no longer means "Not Farming"
Conservation practice comes of age in Kentucky
small grain production.
No-till wheat production in Kentucky has been
transformed from what was once a curiosity that "other"
farmers participated in to what has today become a staple and
economically sustainable management system. By some estimates,
over 50% of the state’s wheat crop is now direct seeded in to
cornstalks or other crop residue without the aid of tillage.
The practice saves time (labor), fuel and equipment costs
while safeguarding our soil and water resources.
Multiple factors have been critical in
propelling the no-till trend, including a strong spirit of
cooperation. Kentucky farmers, university researchers and
extension personnel, the Kentucky Small Grain Growers
Association and the private sector have worked together to
study, implement and refine no-till wheat management
practices.
It is also apparent that the proven pedigree
of intensive wheat management practices introduced in Kentucky
over the last two decades has been readily transferable into
no-till wheat management.
Several basic tenets of intensive management
that bolster success in no-till environments include:
Planting quality seed. Due to the added challenges
posed by high residue levels on the soil surface, no-tillers
must start with high germination, high vigor seed to ensure
optimum stands and good early grow-off.
Starting clean. Applying an appropriate
burndown herbicide ahead of or within a couple days after
seeding is strongly recommended. It ensures that young wheat
plants start with a leg up on early weed competition.
Bump the seeding rate. Because of the physical
interference and challenges posed by cornstalks or other crop
residue, no-tillers will generally find it necessary to push
seeding rates above those typically used in conventional
settings, perhaps by 10% or slightly more.
Use treated seed. Excellent fungicide seed
treatments are available today that can help improve emergence
and early seedling health and vigor. All wheat seed sown in a
no-till environment should be protected with an appropriate
treatment.
Variety selection. Reduce disease and
weather-related risk factors by picking three to four proven
varieties well adapted to your farm. Both the University of
Kentucky and private consulting firms conduct numerous wheat
variety trials annually and make their data readily available.
Look for consistency of yield across multiple test sites.
Focus on fertility.
Soil pH and nutrient levels
must be adequate and in proper balance to encourage good plant
establishment, development and yield.
Split-applied nitrogen. Metering spring topdress
nitrogen out in two applications is a cornerstone for managing
tillering and canopy density in a manner that supports top-end
yields.
Season-long scouting. A sharp eye must be trained
on fields throughout the entire season to monitor and manage
weed, insect and disease pressure as well as to spot other
potential problems.
Granted, no-till may not be the preferred
wheat management system for all growers or field environments.
Certainly, planting and stand establishment are often easier
when seeding in to clean, consolidated seedbeds. And the
conventional approach does offer some savings in seeding
rates. Through the crop year however, heavy rainfall on clean
tilled slopes can have a devastating effect on soil stability
and terrain integrity. Repairing washes is a tedious
by-product of clean tillage.
Article provided by
Miles Opti-Crop.