1. Lime and fertilize according to a soil test.
A good field of corn silage can yield 20-25
tons of wet forage per acre. A 20-ton yield
will remove approximately 150 pounds of
nitrogen (N), 65 pounds of phosphate
(P2O5) and 160 pounds of potash (K2O)
per acre. In comparison, a 100-bushel corn
crop will only remove 100 pounds N, 35
pounds P2O5 and 35 pounds K2O. Be sure
to fertilize and lime according to a current
soil test. Proper pH and nutrient levels are
necessary to raise a good corn crop. Without
a soil test, there is an increased potential
of reduced yield due to nutrient deficiencies.
When sending in soil for a soil
test, be sure to indicate on the information
sheet that you need a recommendation
for corn silage and state the anticipated
yield based on the quality of available
soil resources.
2. Select the proper hybrid. Research at The
University of Tennessee has shown that
corn hybrids that produce good grain yields
also produce good quality silage. Since
corn silage is used primarily as an energy
feed, it is reasonable that high grain yields
and good silage yields are related. Check
with your local Extension office for the corn
hybrid recommended list or see The University
of Tennessee Agricultural Experiment
Station annual bulletin “Performance of
Field Crop Varieties.” If there is a history of
specific diseases or pests on your farm, be
sure to select varieties suited to those
conditions.
3. Plant at the proper time. Plant corn for
silage between April 20 and June 1. April
and early May plantings will yield more
than later plantings of corn.
4. Plant at the proper population. The University
of Tennessee recommends planting
1. Lime and fertilize according to a soil test.A good field of corn silage can yield 20-25tons of wet forage per acre. A 20-ton yieldwill remove approximately 150 pounds ofnitrogen (N), 65 pounds of phosphate(P2O5) and 160 pounds of potash (K2O)per acre. In comparison, a 100-bushel corncrop will only remove 100 pounds N, 35pounds P2O5 and 35 pounds K2O. Be sureto fertilize and lime according to a currentsoil test. Proper pH and nutrient levels arenecessary to raise a good corn crop. Withouta soil test, there is an increased potentialof reduced yield due to nutrient deficiencies.When sending in soil for a soiltest, be sure to indicate on the informationsheet that you need a recommendationfor corn silage and state the anticipatedyield based on the quality of availablesoil resources.2. Select the proper hybrid. Research at TheUniversity of Tennessee has shown thatcorn hybrids that produce good grain yieldsalso produce good quality silage. Sincecorn silage is used primarily as an energyfeed, it is reasonable that high grain yieldsand good silage yields are related. Checkwith your local Extension office for the cornhybrid recommended list or see The Universityof Tennessee Agricultural ExperimentStation annual bulletin “Performance ofField Crop Varieties.” If there is a history ofspecific diseases or pests on your farm, besure to select varieties suited to thoseconditions.3. Plant at the proper time. Plant corn forsilage between April 20 and June 1. Apriland early May plantings will yield morethan later plantings of corn.4. Plant at the proper population. The Universityof Tennessee recommends planting
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