en-USru-RUen-AU
Language
Menu
  1. Продукция
    1. Пневматические бункеры
    2. Посевные комплексы FMS™
    3. Системы для внесения удобрений в междурядья
    4. Air Planter™
    5. Посевной комплекс анкерного типа
    6. Посевной комплекс 4420 DKD™
    7. Почвообработка
    8. Бороны
    9. Спиральные прикатывающие катки
    10. Бак для внесения жидких удобрений LFC
    11. Бункеры-накопители
  2. Поиск дилера
  3. Поддержка клиентов
  4. Запчасти
  5. Агрономия

Bourgault Agronomy

Navigation


Next Salt Effect

Nitrogen Loss & MRB Depth Setting

3 Years of Replicated Trials

Nitrogen loss and MRB Depth Setting

Figure 1

Figure 1

Combined Results from 2015, 2016, and 2017 Trial Years

Fertilizer loss due to volatilization (gassing off) robs farmers of potential profit, which wastes resources and can have a negative effect on the environment.

Bourgault recommends setting your MRBs® between 2"-3" below the original soil surface in order to access soil moisture and to ensure adequate soil coverage to prevent gassing off. This is based off of 3 years of replicated trials. 


Would you like to know more?

Figure 2

Figure 2

Urea Pathway from Urea to Nitrate (plant available nitrogen)

The greatest risk of loss in the urea pathway is after urea converts into ammonia (NH3) and before being converted into ammonium (NH4). The complete pathway is seen in figure 2.

Testing conducted by the Bourgault Agronomy Team observed differences in nitrogen loss and crop yield when comparing urea banded at 1", 2" and 3” depths, in multiple years and moisture conditions. Depth of band was measured from the original ground level to the depth of the urea. The measurement does not include the soil that is thrown over the band by the openers.

Dosimeters, figure 3, were used to determine if there was any free ammonia lost into the atmosphere. The treatments were then brought to yield.

Figure 3

Figure 3

Dosimeter and relative size


Results from Individual Years

The results differed between years due to the spring seeding conditions:

Figure 6

Figure 6

2017 Results in adequate moisture spring. Nitrogen depth was important to reduce loss

Figure 5

Figure 5

2016 Results in a Wet Spring. Nitrogen depth was not as critical to reduce loss

Figure 4

Figure 4

2015 Results in a Dry Spring. Nitrogen needed to be deeper to reduce loss


Image

The required depth of the nitrogen band will depend on the conditions at the time of seeding. It is important to get the nitrogen band into moisture to reduce loss. Some years this depth will be deeper than other years dependent on where the soil moisture is. Setting the depth too deep will create more drag, which will potentially increase fuel consumption and equipment wear.

Previous 3 Components to Nitrogen Uptake

Designing Equipment Around Agronomy

Bourgault operates a 2500 acre research farm in St. Brieux Saskatchewan. Every year Bourgault conducts field trials which help understand the impact of the design of the equipment on crop development, as well as to provide customers and agronomists with recommendations on how to best utilize the Bourgault lineup of equipment.

Contact a Bourgault Agronomist

Terms Of UsePrivacy Statement© 2024 Bourgault Industries Ltd. All Rights Reserved
Back To Top