winter wheat - Canadian Agronomist

18 Jun Reducing herbicide inputs in winter wheat

Posted at 21:36h in Agronomy

In winter wheat cropping systems, pre-plant weed management combined with two in-crop fungicide applications optimized grain yield. An in-crop herbicide application proved to be unnecessary, however multiple applications of fungicides were needed to optimize grain yield and grain protein concentration. Winter wheat can offer substantial economic...

24 Aug EEF liquid N strategies for winter wheat

Posted at 16:30h in Soils and Fertility

Liquid UAN with an urease inhibitor in a split application optimized N use efficiency, grain protein, yield and yield stability. EEFs did not affect greenhouse gas emissions. With the development of enhanced efficiency fertilizers (EEF), winter wheat growers have the opportunity to improve nitrogen use efficiency...

18 May Urea fertilizer strategies for winter wheat

Posted at 20:55h in Soils and Fertility

On dryland sites that have low to moderate productivity, winter wheat growers should band all N at planting to ensure maximum grain yield and protein content. For irrigated winter wheat production or in dryland areas with high yield potential, a split application of fall banded...

27 Apr High broadcast urea volatilization losses occur on frozen soil

Posted at 17:13h in Soils and Fertility

Cumulative NH3 loss (% applied N) from broadcast urea was highest with late-fall application at 16.4%, followed by 11.4% with winter applications and 2% with spring applications. Addition of NBPT urease inhibitor reduced losses by 65.6%. Broadcast urea is a practice that some winter wheat growers...

24 Jan Diversified crop rotation can replace winter wheat/fallow

Posted at 18:17h in Soils and Fertility

On the semi-arid plains, this 6-year crop rotation study found that increasing cropping intensity with spring wheat, pea or lentil could match annualized total grain yields of winter wheat-chemfallow, as long as winter wheat followed a cover crop or fallow. Winter wheat-fallow rotations are practiced to...

15 Nov G x E x M approach for Fusarium Head blight control

Posted at 17:47h in Disease

Researchers explored FHB management strategies focusing on a systems approach of Genotype (G) x Environment (E) x Management (M) interactions. They reviewed current literature, and included a recent western Canadian FHB research project as a case study of this approach. The results showed that a...

22 Sep EEFs did not reduce nitrous oxide emissions in winter wheat

Posted at 17:36h in Soils and Fertility

Three enhanced efficiency nitrogen (N) fertilizers applied at seeding or in split applications between fall and spring did not reduce nitrous oxide emissions compared to conventional urea or UAN fertilizer when applied at 80% of recommended rate. A split application of 30% N at seeding...

09 Jun Winter wheat leaf spot control

Posted at 16:51h in Disease

Using a cultivar with greater disease resistance and applying a fungicide reduced leaf spot diseases in winter wheat. Fungicide application resulted in a 3.3 to 13.2% (2 to 8 bu/ac) yield increase over the untreated check. Leaf spot diseases are commonly seen on winter wheat in...

04 Sep Stubble options for winter wheat

Posted at 22:14h in Agronomy

Barley silage and pea stubbles were identified as high-yielding alternatives with higher protein and greater stability compared to canola stubble in the Black soil zone. Barley grain stubble was identified as intermediate stubble option while oat stubble was a poor option. Research was conducted to investigate...

28 Aug Nitrogen management strategies for winter wheat

Posted at 16:34h in Soils and Fertility

Split applications of N usually provided the maximum yield and protein, particularly with Agrotain or SuperU. This study consisted of two experiments each conducted at five sites across western Canada at Brandon, Manitoba, Hallonquist (south of Swift Current), Saskatchewan, and Lethbridge and Lacombe, Alberta to assess...