Corn Crop in Jeopardy
The severe drought will expand, according to Dev
Nyrogi, State Climatologist. There is no relief in sight for rainfall in
the next two weeks”, he said at a Drought Conference call to Purdue Extension
Educators on June 26. Our best hope for rain is from tropical systems,
but that chance isn't very good, had added.
Most of the state's corn crop will be in the critical pollination
stage during the first two weeks of July. The corn crop is worse than it
appears from the road, said Bob Nielsen, Purdue Corn Specialist. We are rapidly
approaching the 1988 drought as far as severity on corn, the specialist said.
Nielsen said he checked a pollinating corn field that didn't look too bad from the
road, but when checking plants, the silks weren't out but most of the pollen
was already shed. This delayed silk emergence combined with early pollen shed
due to heat and drought, leads to a lack of pollination. It is impossible
to estimate yield loss until the green kernel stage, Nielsen added. Corn tasseling became widely visable in Boone County by June 25th.
Soybeans are more adaptable, but some early planted beans have
begun flowering. There will be much flower abortion due to lack of moisture,
which means less pods, according to Shaun Casteel, Purdue Soybean Specialist.
But, due to expanded flowering of soybeans versus corn, it will have later
opportunities for seed set, whereas corn does not have that opportunity.
Between May 3 thru late-June most of Boone County has only
received around an inch of rain. Normal rainfall for the two month period of
May and June is 9.3 inches in Indianapolis.