Category: Fertility/Inoc

Dry Bean

August 1, 2023

Dry Bean Nitrogen Fertilization and Inoculant Research in Manitoba

Dry beans are relatively poor N-fixers, producing less than 45% of their N requirement. Nitrogen uptake rates in dry beans range from 3.9-4.7 lbs N/cwt of seed, meaning a 2000 lbs/ac dry bean crop would require 78-90 lbs N/ac. This … Continue reading →

Go to download: Dry Bean Nitrogen Fertilization and Inoculant Research in Manitoba
Pea

June 24, 2019

Assessing Field Pea Nodulation

Timing Field pea root nodules can form as early as 14 days after emergence. However, proper nodulation assessment should take place from the 6th to 9th node stages or at R1 (flower bud) to capture peak nodulation. Method Peas have … Continue reading →

Go to download: Assessing Field Pea Nodulation
Dry Bean

June 7, 2019

Dig Up Those (Dry Bean) Roots!

Digging up roots… is this part of your routine crop scouting? Continue reading →

Go to download: Dig Up Those (Dry Bean) Roots!
Pea

March 29, 2019

Field Pea Inoculation and Fertilization

Is inoculation necessary for peas? Field peas can fix atmospheric nitrogen (N2) through a symbiotic relationship with Rhizobium leguminosarum. This bacteria is native to prairie soils, yet farmers typically inoculate peas. In field studies conducted Alberta, peas responded to inoculant … Continue reading →

Go to download: Field Pea Inoculation and Fertilization
Soybean

March 29, 2019

Assessing Soybean Nodulation

Timing Assess soybean root nodules each year, regardless of the field history or inoculant strategy. The ideal time to assess nodulation is at the R1 (beginning bloom) stage. Root nodule assessment at this stage gives a clear picture of whether … Continue reading →

Go to download: Assessing Soybean Nodulation
Soybean

March 29, 2019

Iron Deficiency Chlorosis

Identification Iron deficiency chlorosis (IDC) is most commonly observed in soybean crops, but dry beans, faba beans and field peas can also be sensitive to IDC. Symptoms of IDC include interveinal yellowing (chlorosis) of new growth, where leaf veins remain … Continue reading →

Go to download: Iron Deficiency Chlorosis
Soybean

March 27, 2019

Rescue Nitrogen Fertilizer for Poorly-Nodulated Soybeans

Nodulation failure and nitrogen (N) deficiency has appeared in soybeans across Manitoba, particularly on fields without a history of soybean, in high residue production systems and on acidic soils (pH <6.0). A possible explanation for poorer than usual nodulation and/or … Continue reading →

Go to download: Rescue Nitrogen Fertilizer for Poorly-Nodulated Soybeans
Soybean

March 8, 2019

Preliminary Results of Potassium Management of Soybean Production in Manitoba

Potassium fertility management for soybeans. Continue reading →

Go to download: Preliminary Results of Potassium Management of Soybean Production in Manitoba
Soybean

June 12, 2018

SOYLAB – Inoculation and Nodulation

Laura Schmidt, Extension Coordinator, MPSG Manitoba Pulse & Soybean Growers joined the Manitoba Canola Growers Association for an interactive, two-day event in Brandon and Dauphin on March 14–15. SoyLAB joined canola sessions to bring farmers and agronomists hands-on information about … Continue reading →

Go to download: SOYLAB – Inoculation and Nodulation
Soybean

May 13, 2016

Soybean Fertility Fact Sheet

Recommendations on soybean nutrient management, inoculation and iron deficiency chlorosis. Continue reading →

Go to download: Soybean Fertility Fact Sheet
Soybean

March 23, 2015

Phosphorus Fertilizer Management for Soybeans

Recommendations on phosphorus fertilization in soybeans and a calculator to assist with your annual P balance. Continue reading →

Go to download: Phosphorus Fertilizer Management for Soybeans