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Field Tips by Jack Keller
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Welcome to
Jack's Field Tips! Jack Keller is here to keep you informed on what's happening in
your fields and ways we can help.
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Current Hot Topics In Your Fields |
Integrated Crop Management
Integrated Pest Management
NRCS Buffer
Strip Info
Safety Tips
Information On Soybean Plant Health
Information On SDS In Soybeans
Indiana Ag
Resources On The Net
"Starter Fertilizer 101".Put it on
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Fields that have a heavy winter annual cover,
(chickweed, henbit, etc.) stand a better chance at having a
stand loss due to seed attacking insects. Fields planted into cool soil
temperatures along with a heavy residue are at the greatest risk to have
seed pest problems. If planting into these conditions use of a planter
box treatment is highly recommended. Germate-plus is a popular seed box
treatment that will protect the seed against pests but not the seedling.
Therefore, if wireworms or grubs are known to be present a soil
insecticide is recommended. If a field is known to have a history of
wireworm damage or has recently been converted from sod to row crops it
is likely wireworms will be a problem. |
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Many growers have commented
on the great stands of Purple Deadnettle and Henbit growing in their
fields this spring. These weeds have a square stem and are members of
the mint family. To control these species prior to planting, a mix of
Round-up and 2,4D is effective. Mixes containing Atrazine are also
effective in burning down these weeds in front of corn. One may want to
note fields with heavy winter annual pressure and consider a fall
application of a residual herbicide in the future. |
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Watch for Black Cutworm
activity, especially in no-till cornfields planted after soybeans with
heavier weed pressure. Early feeding will appear as pinhole damage to
the youngest leaves. Plant cutting will occurwhen the lavae reach the 4th
instar (1/2 to 1" long). Feeding will likely occur at night. During the
day, look for larvae just under the soil surface curled up against the
corn plant. Rescue treatments should be made when 3% or more plants are
cut in five or more areas of the field and cutworms younger thatn the 6th
instar are still present. |
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When is it time to plant soybeans? Best
results are generally achieved when soybeans are planted during late
April to early May. A two inch soil depth temperature of 55 degrees is a
good guideline for planting beans.
Planting corn into preplant anhydrous can cause stand loss
and sick looking corn plants. Soil temperature will influence how
quickly the ammonia will convert into the less toxic ammonium form.
Warmer soils will allow this conversion to take place more rapidly.
Symptoms of ammonia injury include:
- swollen seed but has not germinated
- purple and severely stunted plants
- first leaf is bright yellow or dead
roots may be dried up or have brown tips
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You can expect approximately
one pound of nitrogen credit for every bushel of soybeans produced the
past year to a maximum of 40 pounds. |
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Find Elevators Accepting Genetically Enhanced Grain.
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| Pre-emerge herbicide chart for corn |
Post-emerge herbicide chart for
corn |
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Pre-emerge herbicide chart for beans |
Post-emerge herbicide chart for beans |
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Herbicide Resistant Crops On Your Farm
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