Thoughts for 2023 Season
A week ago I was out east visiting family. Sunshiny daffodils were blooming in medians and we saw cherry blossoms and magnolias blooming at the National Arboretum in D.C. As I look in my backyard today, green leaves of tulips and daffodils are poking through. Rye, wheat, and lawns are greening up-the green this time of year is so stark in contrast to the brown. I’m so grateful to live in a place with seasons to see creation on display throughout the year!
March flew by and April is here. Another growing season will soon be upon us. I wasn’t mentally ready for another growing season. I’ve thought a lot about this and have heard this from others as well.
I knew I needed time in March to get my mind back into facing another one. I think of so many of you and there’s not been much break. Every spare moment of a ‘decent’ weather day this winter has been spent repairing/replacing pivots, buildings, bins, homes, or dealing with livestock.
I encourage us all to take some time to reflect on the blessings we’ve been given to work in agriculture, to be stewards of this land, and provide food for our families and the world. Reflecting on my purpose, “my why” for my Extension career and how blessed I am to get to serve many in this role, has reinvigorated my excitement for a new year. Perhaps reflect on “your why”? We have, we are, and will continue to face challenges as we aren’t in control of so much, especially the weather. But producers and those in ag careers are some of the most optimistic and resilient people I know. My hope is that we can all find some renewed joy and excitement for a new growing season!
Cover Crop Termination: For those who did plant small grains, the question of termination timing always comes up. The following are some thoughts to consider for planning. The temperature and year will determine how quickly a small grain will die.
- Termination timing considerations: https://jenreesources.com/2021/03/28/jenrees-3-28-21/.
- Photo gallery: https://jenreesources.com/2022/04/03/cover-crop-termination-including-planting-green/
- Can use only 20-22 oz/ac of Roundup Powermax (even when headed). Vetch + small grain: vetch will survive the Roundup application allowing it to produce more nitrogen. Can kill with post-app containing a Group 27 herbicide (like Callisto) later.
- Clethodim vs. glyphosate: clethodim provides a slower kill allowing the rye/wheat to stay greener longer for weed/erosion control. Benefit for farmers who need to terminate prior to corn or seed corn planting. Clethodim rates: most use 10-12 oz/ac. For corn, clethodim needs to be applied to the small grain to kill it at least 7 days prior to planting corn. For soybeans, can apply anytime after planting/emergence.
- When the small grain is greater than 12”, increase gallonage to 15-20 gal/ac for better coverage.
- When planting corn green into a small grain on subsurface drip irrigation (SDI), need the ability for higher capacity well to get moisture up to the seedbed. Potential yield loss otherwise.
- When planting soybeans green, the goal is often to off-set the PRE herbicide cost with the cover crop seed and application cost. A residual is necessary at some point either at time of termination or up to a week after termination when planting soybean green. Plan on 0.5-0.75″ irrigation/rainfall to get residual to the ground, especially on small grains taller than 12”.
- For those rolling small grains, roll twice if needed. And, plan on using a variety instead of VNS in future to help with evenness of maturity.
My key points for planting green include: plan on some form of nitrogen at planting if planting corn green into a small grain, have the pivot ready to go if need moisture for the seedbed, don’t use a PRE in soybean if can’t get seed vee closed, plan to water residual application as soon as label allows to get residual to ground, and if non-irrigated, consider seedbed moisture for termination timing. Have a Plan A, B, C.
Posted on April 2, 2023, in JenREES Columns, Reflections and tagged cover crop termination, cover crop termination timing, purpose, Reflections. Bookmark the permalink. Leave a comment.
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