Accuracy SIDEDRESS UAN APPLICATION FOR CORN PRODUCTION

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O k l a h o m a S t a t e U n i v e r s i t y . Nitrogen Leak. Presentation. Presentation. The basic utilization of UAN for sidedress N application in corn is to apply this fluid manure amidst columns utilizing either spill surface groups, or moving coulter infusion. .

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Slide 1

´╗┐Accuracy SIDEDRESS UAN APPLICATION FOR CORN PRODUCTION Kefyalew Girma Oklahoma State University O k l a h o m a S t a t e U n i v e r s i t y

Slide 2

Introduction O k l a h o m a S t a t e U n i v e r s i t y Nitrogen Leak

Slide 3

Introduction O k l a h o m a S t a t e U n i v e r s i t y Coulter UAN application in corn (Ames, IA). UAN surface application is made inside the focal point of the line, 15 inches far from the base of each stalk . The normal utilization of UAN for sidedress N application in corn is to apply this fluid manure amidst columns utilizing either spill surface groups, or moving coulter infusion.

Slide 4

Introduction O k l a h o m a S t a t e U n i v e r s i t y Excavated corn plants demonstrating no covering of nodal root frameworks when corn plants were more than 10" separated, at silking development arrange

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Objective to think about three sidedress N situation strategies on corn grain yield/where Evaluate sidedress N rates O k l a h o m a S t a t e U n i v e r s i t y Sense by plant and treat in view of yield potential

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Treatment structure of exactness sidedress UAN examination, Haskell and Lake Carl Blackwell, 2005-2006. O k l a h o m a S t a t e U n i v e r s i t y

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By-line By-plant O k l a h o m a S t a t e U n i v e r s i t y Between columns

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Directed Stream Applicator O k l a h o m a S t a t e U n i v e r s i t y Directed stream use of UAN in corn connected at the base of stalk of the plant

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N W E S 13 5 10 4 15 12 8 9 7 2 3 6 14 11 1 14 15 6 5 7 13 9 4 3 8 10 11 2 12 4 5 2 9 10 15 7 8 3 13 12 11 14 6 1 Design and Field Layout Location: Haskell-2005 III II O k l a h o m a S t a t e U n i v e r s i t y I Plot estimate 10' x 20' with 5' rear way By plant N rate was resolved as: Calculate UAN/push Divide the above by number of plants/line

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Between line and inside line by plant corn grain weight changeability at Haskell (Hask) and Lake Carl Blackwell (LC), OK, 2005. O k l a h o m a S t a t e U n i v e r s i t y

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Between line and inside column by plant corn grain weight changeability at Haskell (Hask) and Lake Carl Blackwell (LC), OK, 2006. O k l a h o m a S t a t e U n i v e r s i t y

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Martin et al. (2005) Agron. J. 97:1603-1611 Regardless of yield level, plant-to-plant inconstancy in corn grain yield can be normal and found the middle value of more than 2765 kg ha-1 (44 bu/air conditioning) more than 46 destinations (Ohio, Iowa, Nebraska, Virginia, Mexico, Argentina)

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Effect of UAN sidedress situation strategy on corn grain yield O k l a h o m a S t a t e U n i v e r s i t y

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Effect of sidedress N rates on corn grain yield O k l a h o m a S t a t e U n i v e r s i t y

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Summary Within column fluctuation in grain yield was high By plant sidedress use of N as per individual plant yield potential would bring about enhanced effectiveness and lessened cost to makers The pick up in yields from the three strategies ran from 7 to 25% more than the communicate treatment in three area years O k l a h o m a S t a t e U n i v e r s i t y

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Summary Under typical developing conditions, N ought to be sidedressed by plant at a rate of 20-40 lb/A to keep up yield level and abatement misfortune in compost N simultaneous with inside line plant to plant changeability Results are not definitive as the 2006 corn developing season was to a great degree dry/hot The test will be proceeded for 1 more year O k l a h o m a S t a t e U n i v e r s i t y

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Summary Additional estimations, for example, ears per plant, 100-seed weight, ear measure, plant dividing, and grain N fixation O k l a h o m a S t a t e U n i v e r s i t y

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THANK YOU! O k l a h o m a S t a t e U n i v e r s i t y

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