Corn Nitrogen Management Study
Zach Rystrom
Author
08/24/2021
Added
100
Plays
Description
Laila Puntel talks about an on farm research project testing corn nitrogen management practices.
Searchable Transcript
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- [00:00:07.542](upbeat music)
- [00:00:14.502]are you wondering what
- [00:00:15.681]other technologies you can
- [00:00:17.008]test to increase
- [00:00:18.283]nitrogen use efficiency
- [00:00:20.571]profits and yield
- [00:00:22.753]in this virtual field
- [00:00:23.975]day we bring you
- [00:00:25.217]an example of an
- [00:00:26.603]on farm research trial
- [00:00:28.308]looking at contrasting
- [00:00:29.430]nitrogen management
- [00:00:30.719]practices in corn
- [00:00:33.037]the grower located in
- [00:00:34.672]Seward county Nebraska
- [00:00:36.174]was interested in testing
- [00:00:38.906]anhydrous fall nitrogen
- [00:00:40.653]application against an
- [00:00:41.993]in season nitrogen
- [00:00:43.994]sidedress to test
- [00:00:45.254]these practices several passes
- [00:00:46.960]along the field
- [00:00:48.344]were done in the fall with
- [00:00:49.960]150 pounds per acre
- [00:00:51.856]corresponding to the
- [00:00:53.907]growers desired rate
- [00:00:56.117]other passes in the field
- [00:00:57.544]were applied with a
- [00:00:58.803]base rate of 75 pounds
- [00:01:00.203]per acre for those
- [00:01:01.982]strips that had the lower
- [00:01:03.944]N rate in the fall
- [00:01:05.062]a variable rate nitrogen
- [00:01:06.500]prescription was
- [00:01:07.859]applied around V8
- [00:01:09.704]Granular a crop
- [00:01:11.212]model based tool
- [00:01:12.944]was selected by the grower
- [00:01:15.028]in this case to
- [00:01:16.304]guide the variable rate
- [00:01:17.531]nitrogen application
- [00:01:20.119]along with these strips
- [00:01:21.247]a series of small blocks
- [00:01:23.908]with increasing amount
- [00:01:25.387]of nitrogen were
- [00:01:26.874]set in the field
- [00:01:28.303]to estimate the corn
- [00:01:29.652]yield response to nitrogen
- [00:01:30.939]and the associated economic
- [00:01:32.434]optimum nitrogen rate
- [00:01:35.150]that's the rate related
- [00:01:36.808]with the maximum amount
- [00:01:38.291]of profit but also the one
- [00:01:39.927]that minimizes nitrogen
- [00:01:41.394]losses
- [00:01:42.526]using yield monitor data
- [00:01:44.166]we will be able to
- [00:01:45.666]compare the yield
- [00:01:46.688]profit and the nitrogen
- [00:01:48.604]use efficiency difference
- [00:01:50.326]from the fall application
- [00:01:52.089]and the variable rate
- [00:01:53.196]nitrogen made by
- [00:01:54.482]Granular model
- [00:01:59.120](upbeat music)
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