Previous Crop: Spring Wheat
Pre-Seed Herbicide(s): noneSeeding Date: May 17, 2016
Seeding Rate:RR¹ and LL² varieties – 5 lb/ac; CL³ varieties – 7 lb/ac
Row Spacing: 7.5″
Opener Type: Disc
Seeding Equipment: New Holland P2080
In Furrow: 108 lbs as ESN 66%/urea 33% blend plus 125 lbs MicroEssentials® S15™
Side Band: N/A
Fungicide Application: July 6, 2016
Insecticide Application: None
|Hybrid||Supplier||Harvest Method||PreHarvest Application or Swath Date||Harvest Date||Adjusted Yield bu/ac||% Green Seed|
|InVigor® L140P||Bayer||Straight Cut||N/A||20-Sep||52||0.2|
|InVigor® L140P||Bayer||PreHarvest Glyphosate+Heat®/Straight Cut||23-Aug||20-Sep||52||0.4|
|InVigor® L140P||Bayer||PreHarvest Reglone® Ion/Straight Cut||23-Aug||21-Sep||50||0.6|
|75-65 RR||DEKALB||Straight Cut||N/A||20-Sep||46||0.4|
|75-65 RR||DEKALB||PreHarvest Glyphosate+Heat®/Straight Cut||23-Aug||20-Sep||49||1.2|
|75-65 RR||DEKALB||PreHarvest Reglone® Ion/Straight Cut||23-Aug||20-Sep||47||0.2|
|Nexera 2022 CL||Nexera Canola||Straight Cut||N/A||20-Sep||36||0.6|
|Nexera 2022 CL||Nexera Canola||PreHarvest Glyphosate+Heat®/Straight Cut||29-Aug||20-Sep||37||0.6|
|Nexera 2022 CL||Nexera Canola||PreHarvest Reglone® Ion/Straight Cut||29-Aug||20-Sep||35||0.4|
|Straight Cut||PreHarvest Glyphosate+Heat®/Straight Cut||PreHarvest Reglone® Ion/Straight Cut|
Field Notes: Harvest Management
The first thing I noticed was that L140P lodged more than 75-65RR and Nexera 2022 CL. Also, it was tough combining when it was not treated with a harvest aid. There was a lot of green material that plugged up the combine on occasion. Once L140P was sprayed with either Reglone Ion or glyphosate + Heat harvesting speed was restricted only to what the header could take in. There were no harvest losses with L140P- the trait works well.
Without a harvest aid, 75-65 RR straight cut was easy to harvest with a speed of about 4 mph and power use of 75-80 per cent. And, it only got better when we paired it with a harvest aid treatment. There was no difference between Reglone Ion or glyphosate + Heat. The plant had completely dried down and was a pleasure to harvest.
Nexera 2022 CL had a thinner stand in all three replicates and that likely caused the lower yield. From a harvest management perspective, plots treated with a harvest aid were a bit easier to thresh. The thinner stand resulted in a few more weeds in the 2022CL plots, when compared with the other two hybrids and the harvest aids certainly helped dry the weeds down. Some shatter losses were noticed with 2022CL when treated with a harvest aid.
We are very anxious to repeat this trial next year, as one year of data doesn’t provide enough information to make an informed decision.