The N decision, armyworm thresholds, and little alligators — RealAg LIVE! with Wheat Pete

Episodes:

It’s time for RealAg LIVE! Q&A with resident agronomist, Peter “Wheat Pete” Johnson.

The regular host of Wheat Pete’s Word is fielding questions from Western Canada, Ontario, and more in this quick discussion (summary is below) on nitrogen testing and rates, armyworm and predators, and tillage.

Tune in Wednesday, June 24, LIVE! at 3 pm eastern for a Q&A with Mary Robinson, president of the Canadian Federation of Agriculture

  • Ontario got some timely rain in some places, friends! That’s good news
  • Crops look really good in some places (the Peace and a few areas notwithstanding)
  • Shaun is learning to be a hand talker
  • Dry fertilizer surface application on wheat? You could go at anthesis. Make sure you’ve got a uniform prill, for uniform spread, and lower dust, please.
  • Don’t count your bushels before they are in the bin, right?
  • There’s more soil nitrate N than expected in the soil right now for Ontario. But it was a cold spring! What the heck? It’s because it was dry, as well as cool. That lowered losses.
  • What does it mean for corn split applications of N? There’s more to consider.
  • Sometimes what you expect from a rotation isn’t what you always get — it speaks to the importance of soil nitrate testing.
  • Armyworm! In some areas, they’ve eaten flag leaves and the whole bit. Thresholds are part art, sometimes. Got to take into account time of year and protecting that flag leaf. How far are you in to grain fill?
  • Armyworm are moving north in the wheat crop/province.
  • Alligator alert! Lady bug (ladybird beetle) larvae look like alligators — and they will feed on armyworm eggs and armyworm larvae, too.
  • Approaching fusarium control/suppression timing in Western Canada. What’s the go/no go? The later you can push fungicide spraying towards heading, the better yield response you’ll get. BUT don’t be too late. Fusarium risk means a fusarium fungicide, not a leaf disease product. Prior to heading you’re targeting leaf disease, so you may need to control for leaf disease prior to fusarium timing
  • Shaun is also learning to be an agronomist
  • PGRs need on early, it’s not the same timing as fungicide at all! That’s too early for most disease pressure. It becomes a compromise. And why compromise?
  • Remember the 1/2 rate of Tilt days? We’ve learned, let’s do better, because we know better. Half rates aren’t worth it, leads to resistance, and just a waste.
  • Alert! Alert! Alert! Wheat Pete and recreational tillage don’t mix. Just don’t do it. Now, when it comes to soybeans, some tillage makes a difference, and it’ll give you peace of mind to do that little bit of pre-tillage, but tillage is hard on soil.
  • Let’s talk compaction and those headlands — and tillage. Tillage is art as much as it is a science. Because sometimes it makes things so much worse, but every now and then it adds some yield.
  • We know the benefits of decreasing tillage: better water infiltration, less erosion, less compaction, better soil structure.
  • Pre-side nitrate dress test in corn. How reliable are they? They’re a snapshot in time. So take it at 6-8 leaf corn. Too late, and you’ll get results you can’t really use. Three times out of 10 it’ll predict the right rate. It’s not perfect, but it’s a base understand, and can use it to fine-tune N.
  • June 15 to July 15 rainfall is another tool that helps fine-tune the N decision.

Leave a Reply

 

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Privacy Preference Center

Necessary

Necessary cookies help make a website usable by enabling basic functions like page navigation and access to secure areas of the website. The website cannot function properly without these cookies.

gdpr, __cfduid, PHPSESSID, wordpress_test_cookie, woocommerce_items_in_cart, woocommerce_cart_hash, wp_woocommerce_session, wordpress_logged_in, wordpress_sec, wp-settings, wp-settings-time, __cf_mob_redir, wordpress_cache, realag
__cfduid

Marketing

Measuring interactions with the ads on the domain.

__gads,fsk_ut_2317
scmtid,v,a,JSESSIONID
IDE

Statistics

These are used to track user interaction and detect potential problems. These help us improve our services by providing analytical data on how users use this site.

_ga,_gid,_gat,_cb,_chartbeat2,_chartbeat4
_ga,_gat
_ga,_gid
metrics_token

Preferences

Preference cookies enable the website to remember information that changes the way the website behaves or looks, like your preferred language or the region that you are in.

chartdefaults, comment_author, comment_author_email, comment_author_url
JSESSIONID, _os_session,anonymous_votes,csrf-param,csrf-token,user,user-id,user-platform,intercom-session,intercom-lou,intercom-session
personalization_id, tfw_exp