Friday, June 24, 2016

2016 - Late Spring Review of our Cover Crop

 

 This spring we started taking out CRP with 2qt of Rt3 with extra surfactant, using 12gpa solution, TeeJet blue TT with 40psi.  Results were excellent.  Two weeks later we seeded a cover crop mix that included:  Yellow Blossom Sweet Clover, Common Vetch, Daikon Radish, Graza Radish, Attack Mustard, Ida Gold Mustard, Winter Canola, Spring Canola.  The mix at 10#/ac contained about 1.7million seeds per acre.  Because the source of the Ethiopian Cabbage (Corinne) was not certified disease free, it was not included. The intention is to leave this cover to grow through March, maybe April 2017, and then chemically destroy it, leaving as much of a residue mat as possible.  The cultivars that are expected to survive the winter is the clover, vetch, and Graza radish.  Both of the legumes should grow well early in the spring 2017 and provide N by takeout time. The Graza will exist and grow leaf material prior to takeout.   If we could have planted the Corinne, it would likely survive and provide us with another vigorous bio-bore plant.  The radishes, canola's and mustards are bio-bore plants as well.  We have found that our CRP ground is in need of deep boring cultivars.  The mustards, canola and Daikon Radish will seed out in 2016 and likely die during the winter.  Come spring we will see high populations of these cultivars emerge early.  None of these cultivars will be a problem to remove.  Our intention is to seed these acres to winter wheat the fall of 2017.
      Today, I noticed some areas are very good and others with a sparse population.   On reflection, we should have started the process about a month earlier.  The south exposures indicates they were short on moisture showing a spotty stand with few cultivars.  One 0.40 rain will get them started.  Field aspects that point anywhere northerly looks good with high populations, and a good diversity of cultivars.
   

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