Research at Stumpf Center in Grant Question and Answer Session

22-6342-1017 Author

08/31/2020 Added

6 Plays

Description

Dr. Julie Peterson, moderates a question and answer session with Strahinja Stepanovic and Dr. Daran Rudnick .
Feedback form

Searchable Transcript

Search:

[00:00:08.350]We do have I believe all our presenters here now
[00:00:12.210]to be able to answer questions,
[00:00:14.960]I might start it off here with there
[00:00:17.690]is a root worm question
[00:00:19.770]in the chat.
[00:00:21.260]What class of chemistry would
[00:00:23.210]you recommend for adult control?
[00:00:26.530]So one of the products
[00:00:27.880]that I have seen,
[00:00:29.490]I think some pretty good results with and some
[00:00:31.660]of our trials and some of the work
[00:00:33.260]that we've done is Steward,
[00:00:35.630]which has more recently come out
[00:00:37.750]as labeled for corn rootworm.
[00:00:41.090]Probeathon would be another one press on
[00:00:43.330]is quite good for Western Bean cutworm as well.
[00:00:47.280]These are two of our newer modes of actions
[00:00:48.113]for insecticides.
[00:00:51.820]And those are ones I would encourage folks
[00:00:55.050]to check out.
[00:00:56.420]I know that they
[00:00:57.253]are a bit more expensive,
[00:00:58.300]they are going to be more expensive than
[00:00:59.810]some Are pyrethroids but I would encourage them as part
[00:01:02.890]of a rotation for adult rootworm
[00:01:05.995]and for Western Bean cutworm control as well.
[00:01:09.530]And then another question on rootworm here is that
[00:01:13.120]some growers will try
[00:01:14.350]to control the larvae,
[00:01:15.950]which is usually ineffective with chemigation anything
[00:01:19.130]that will work.
[00:01:20.360]So I believe that's referring to what might be
[00:01:23.220]sort of called a rescue treatment is that,
[00:01:27.920]in the first half
[00:01:29.050]of the season,
[00:01:30.040]folks would put some product through the,
[00:01:32.540]through the pivot with the idea that
[00:01:34.494]that product could get down into the soil and get
[00:01:38.140]to the larvae there.
[00:01:39.720]I'm going to agree that that is
[00:01:41.330]often not effective that
[00:01:42.930]that you're you're really you're moving through a lot
[00:01:46.280]of soil to try to get
[00:01:47.510]to the larvae.
[00:01:48.720]At that point as well.
[00:01:50.450]The larvae are really feeding on the roots
[00:01:53.012]and they can be quite protected.
[00:01:54.629]They even can move into the route itself
[00:01:58.260]and it can be very difficult
[00:01:59.440]to reach them.
[00:02:00.810]I would say that
[00:02:04.210]going into the season with some idea
[00:02:07.600]of what your pressure might be based
[00:02:09.720]on having scouted for adults in the previous year
[00:02:12.860]is really going to be important,
[00:02:14.730]then you can go into
[00:02:15.563]that situation knowing, hey,
[00:02:17.780]I need to put down
[00:02:18.820]something at plant,
[00:02:20.430]or I need to make sure
[00:02:21.810]that I am purchasing a seed hybrid,
[00:02:26.350]a corn hybrid that has the appropriate bt traits
[00:02:29.690]that has that cry three,
[00:02:31.050]four protein in it,
[00:02:32.440]that's going to give me my best protection.
[00:02:36.148]I think that that's difficult.
[00:02:38.020]It's really difficult
[00:02:38.980]to do a rescue.
[00:02:39.920]It's really difficult
[00:02:41.480]to wait until you're at V four V five,
[00:02:44.190]and you're like, oh, gosh,
[00:02:46.310]now I'm in trouble.
[00:02:48.230]That I think that early planning and being aware
[00:02:51.520]of what kind of pressure you had there,
[00:02:53.410]the previous season from scouting is going
[00:02:56.130]to be important.
[00:02:57.970]Important in that in that scenario.
[00:03:03.735]I think Do we have any questions for Darren,
[00:03:06.824]on the your the hybrid nitrogen irrigation?
[00:03:13.440]If there's not anything that pops up
[00:03:15.210]in the chat I,
[00:03:16.600]I had a question and I'm just maybe not
[00:03:19.650]as familiar with these dwarf semi dwarf hybrids.
[00:03:24.290]Is there anything else you could tell
[00:03:26.140]us about that about like, advantages possibly,
[00:03:28.765]or disadvantages there with with that approach?
[00:03:33.986]Yeah.
[00:03:35.190]Thanks, Julie.
[00:03:36.170]So, to be honest with you,
[00:03:37.670]I'm not 100% sure on some of the genetic differences,
[00:03:41.940]I do know that it is initiative that is kind
[00:03:45.970]of rolling out through Bayer crop science,
[00:03:48.482]and I believe that they are actually grown down
[00:03:50.814]in South America.
[00:03:51.647]And so we have to have,
[00:03:52.950]I believe, five sites.
[00:03:55.130]So some colleagues at CSU and then also some
[00:03:58.750]of their internal sites.
[00:04:00.680]So I think what they're really looking at
[00:04:02.060]is the shorter based hybrids,
[00:04:04.820]how are they going to perform and stand up to
[00:04:06.810]these very water limited
[00:04:08.060]and even nutrient limited conditions?
[00:04:10.550]And then how does it match up to some
[00:04:11.820]of the machinery and equipment that we use here
[00:04:14.390]in Great Plains?
[00:04:19.160]Thank you for the question.
[00:04:21.100]= Yo.
[00:04:27.440]Let's see.
[00:04:28.850]Oh, we do have another question.
[00:04:29.810]All right.
[00:04:32.731]For Darren, how big do your plots need to be to ensure
[00:04:37.120]that the conventional hybrids
[00:04:38.680]are not actually shadowing the dwarf hybrids?
[00:04:42.077]That's is it yeah.
[00:04:43.340]Interesting question there.
[00:04:45.030]Yeah, that's definitely
[00:04:47.470]that's a fantastic question.
[00:04:49.280]And so usually,
[00:04:51.170]we would like to have enough spacing
[00:04:53.840]and it also depends on
[00:04:54.700]how many rows we're wanting to sample.
[00:04:56.170]So in this case,
[00:04:57.390]we're going to target a little bit more
[00:04:58.660]of the center part.
[00:05:00.360]I would say probably
[00:05:01.560]from our experience at least two rows,
[00:05:04.944]we have noticed that there's quite a bit
[00:05:07.220]of difference in height,
[00:05:08.240]especially at the grant location as compared
[00:05:10.930]to what we've seen
[00:05:11.763]in the last couple years here
[00:05:13.795]in North Platte.
[00:05:15.110]But I guess with everything and all
[00:05:16.610]of our experimental layouts,
[00:05:17.670]whether it's shadowing effects of heights,
[00:05:22.434]or our irrigation buffer that's required,
[00:05:25.080]we try to size that in.
[00:05:26.430]And in our case,
[00:05:27.750]most of the time,
[00:05:28.583]we're using work production scale equipment,
[00:05:30.660]such as our precision planter.
[00:05:32.550]And so we have the ability just because we need
[00:05:35.450]to plant that many rows
[00:05:36.900]in just focus our actual data collection
[00:05:39.300]in the center of that.
[00:05:43.124]Thank you.
[00:05:49.410]Strahinya,
[00:05:50.980]I may be kind
[00:05:51.960]of a similar question.
[00:05:55.579]The advantages of being able
[00:05:58.200]to grow spring wheat
[00:06:00.200]In Nebraska, when we've really focused
[00:06:02.580]so much on winter wheat
[00:06:04.367]and our hybrid and our crop rotation
[00:06:10.660]or disadvantages.
[00:06:12.090]Well, they're
[00:06:15.560]they're both wheat species,
[00:06:17.747]but they're totally different crop.
[00:06:20.350]I mentioned earlier in my presentation wheat is mostly grown
[00:06:24.520]in a wheat corn fallow, where,
[00:06:26.920]you're having a good yield of two crops
[00:06:28.890]in two years,
[00:06:29.723]whereas this is more
[00:06:31.000]to break out the continuous corn cycle.
[00:06:34.010]I think farmers can get creative a little bit
[00:06:36.370]to the point where,
[00:06:38.240]they can play with rotations and come up
[00:06:40.780]with all kinds of different rotations but those are kind
[00:06:43.500]of made to so they fit differently rotation, therefore,
[00:06:46.050]they're going to bring a different benefit.
[00:06:47.570]So you're comparing corn to corn to three years
[00:06:50.130]of corn and then one,
[00:06:51.640]one year off.
[00:06:53.370]Spring wheat versus winter wheat.
[00:06:55.980]It's totally different.
[00:06:58.550]Totally different, I think.
[00:06:59.960]It would be nice if guys that want to switch
[00:07:02.640]to corn or corn
[00:07:03.490]or continuous crop rotation.
[00:07:05.751]Do that slowly leave some
[00:07:07.981]of the acres wheat corn fallow,
[00:07:10.094]we know and then move
[00:07:12.590]to continuous crop rotation,
[00:07:14.040]continuous corn on the other parts
[00:07:15.660]of the field,
[00:07:16.996]maybe that will be the balance
[00:07:19.054]how they would balance each other out.
[00:07:20.310]They're like I say different crop,
[00:07:22.050]they have different futures.
[00:07:24.960]Spring wheat is usually you can get more money per bushel.
[00:07:29.440]So they're priced better
[00:07:31.790]about half $1 to about dollar point two
[00:07:36.560]to what I've been following.
[00:07:39.540]That's a difference,
[00:07:40.373]maybe take it an average
[00:07:42.040]of $1 more on a futures market than it
[00:07:45.060]is winter wheat.
[00:07:46.370]But and then he has more protein.
[00:07:48.520]So if he has certain advantages to marketing,
[00:07:51.710]but we don't have anything local yet.
[00:07:53.716]So you're going to have to find
[00:07:55.650]that marketing opportunity.
[00:07:56.850]What was really interesting from that nitrogen study was
[00:08:00.475]that you would get half a yield with
[00:08:04.060]as much nitrogen you put out there.
[00:08:06.510]So winter wheat will make will take two pounds
[00:08:09.420]of nitrogen for a bushel,
[00:08:11.720]whereas spring wheat will take 3.5
[00:08:14.044]to make a bushel so you're going
[00:08:15.960]to be fertilizing a lot for half his yield for winter wheat.
[00:08:21.110]And it's just a different crop,
[00:08:23.500]finding crop insurance is going
[00:08:24.900]to be harder,
[00:08:25.733]you're going to have to have written agreement
[00:08:27.900]and marketing opportunities are different.
[00:08:29.810]We got to do protein and bacon a million qualities
[00:08:32.380]to really know what Millers
[00:08:34.510]and bakers want.
[00:08:36.250]And I would just advise guys to try it out
[00:08:38.760]but not to go crazy and wait for more information.
[00:08:43.750]Thank you.
[00:08:45.130]Do we have any other questions for our panelists here?
[00:08:53.890]Well, we have up on the screen now.
[00:08:56.060]Just wanted to say thank you again to our sponsors
[00:08:58.580]and our donors.
[00:08:59.480]Thanks to everyone
[00:09:00.313]for participating, our presenters
[00:09:01.264]as well as all of our guests today,
[00:09:04.560]and thank you again for your patience
[00:09:06.650]as we work through some of our technological issues.
[00:09:10.880]There will be a short survey coming out from us
[00:09:14.260]in the next week.
[00:09:15.580]And it would just be very helpful if you all will be able
[00:09:18.040]to fill that out and complete
[00:09:19.500]that by September 10.
[00:09:21.230]So that we can hopefully build and improve these sorts
[00:09:24.780]of virtual learning opportunities for you all.
[00:09:28.400]All right, thank you guys so much,
[00:09:30.180]and I'll go ahead
[00:09:31.013]and end the meeting.

The screen size you are trying to search captions on is too small!

You can always jump over to MediaHub and check it out there.

Comments

0 Comments

Research at Stumpf Center in Grant Question and Answer Session

Description

Searchable Transcript

Comments icon comment

Related Channels

Comments