Thursday, May 29, 2014

Still Time For Soybean Yields?

The planters were parked when rain recently swept through large portions of Ohio, Illinois, Indiana and Iowa, slowing planting progress that had surpassed the five-year averages for corn and soybeans.
Less than one-third of the soybeans were planted leading into the delay, but there’s still time in the optimum planting window.

“It’s really not late at all as far as soybean planting is concerned,” said Lance Tarochione, DeKalb and Asgrow territory agronomist.

“We have talked a lot in recent years about some of the research that shows that early planting of soybeans does tend to increase your yield potential. I’m a believer in that, but for many, many years, the target planting window for soybeans was basically the month of May and we really didn’t think we started losing yield potential until June 10.”

He added more recent research indicates the soybeans’ yield potential is reduced more rapidly when planted later, “but you can still raise very, very good beans in Illinois planted in May.”   “I’m not terribly concerned about the fact that there are a lot of soybeans to be planted,” Tarochione said.
It’s also much too early to consider increasing planting population as the calendar gets nearer to double-crop timing.

“I don’t really worry about that until I get into the second half of June. I’m still recommending standard seeding rate,” Tarochione said.

I've seen Keith Schlapkohl break 100 bushels per acre planted June 19.  I would be lucky to break 60 and more like 50 bushels.  I would rather plant beans in April and have them out of the ground in May.  We are seeing bean leaf beetle on the early plantings as they have nothing else preferable to eat.

The old Ohio State Agronomy Guide says those beans should be in the second trifoliate by now.  The earliest fields are.

I hope the guy isn't selling soybean seed because I think too many are going to be planted this year due to price and weather.  Planting delays lowers yield expectation but I agree good yields can still be obtained.

Ed Winkle

3 comments:

  1. Ed were we are wet again in Ontario when do you think a guy should call it quits on Corn? We have all our '13 wheat ground planted in corn going from 107 day-100 day , I would like to do 1 more 40 acre chunk,is it too late in your mind? My experience with planting corn twice in first week of June was 60 bu. in 'the '80's and then in 2011 we got 190...it either has to go for HMSC or air dried in the bin ...... hope you didn't get pounded to much with those heavy rains this week. My thought is they are only predicting rain for 5 days next week so if they are wrong maybe try some 95 day corn . Our crop ins. guarantee is 144 and with 0 corn up I think its going to be a struggle and just don't want to plant to collect ins.regards-kevin

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  2. I don't know, Kevin. The weather maps and predictions I have watched have me concerned whether we will have enough heat units this summer. Minnesota and Ontario are suspect.

    How's your prayer life?

    Ed

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