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Farms.com Home  › Expert Commentary

Factors To Consider While Assessing Your 2017 Winter Wheat Crop Stand And Spring Nitrogen Timing

Mar 22, 2017
By Shawn Conley
WI State Soybean and Wheat Extension Specialist
 
As we begin to contemplate spring and the 2017 winter wheat growing season, many growers and consultants alike are beginning to venture out and across their winter wheat fields to assess winter injury and nitrogen timings. Though it is a bit premature to make any rash decisions regarding crop destruction here are a few considerations for assessing your spring 2017 winter wheat stands.
 
1. As you look across your wheat landscape vibrant green patches will be interspersed with drab brown areas. The brown areas do not necessarily indicate those plants are dead.
 
2017 Arlington Winter Wheat Variety Trial - Roadside Assessment
 
2017 In Field Stand Assessment
 
Planting Depth and Tiller Assessment
 
Growers and consultants can either reassess in a week or pull plants from the field and place in warm environments. Milk houses and kitchens work perfect. Root regrowth will appear from the crown and will appear as vibrant white roots as shown below.
 
Spring Root Regrowth in Winter Wheat
 
If plants do not recover our critical threshold for turning over a field is 12 to 15 live plants per square foot. Below this threshold (< 12 plants per square foot) is an automatic replant decision. 
 
2. In regards to N application timing for winter wheat that decision is pretty darn simple. Research from Dr. Carrie Laboski's program indicates that the optimal time to apply nitrogen to wheat in WI is green-up regardless of tiller count. For more detailed information check out her  blog article here: Time your spring nitrogen applications to maximize winter wheat yield.
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