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Should I add nitrogen to my corn stalks so they decompose quicker?
Each year we receive this question and the answer is still no. Grain corn does produce high amounts of crop residue with a high C:N ratio, meaning microbes will immobilize or soak some nitrogen out of...
View ArticleI fertilized my winter wheat last fall. However, I made the decision to...
Answer (provided by John Heard, MAFRI Crop Nutrition Specialist) The amount of nitrogen remaining for your canola crop will be affected by the timing of fall N application, amount of rainfall you...
View ArticleShould you plant corn after canola?
Planting corn after canola can result in corn being impacted by phosphorus deficiency, or what is commonly called “corn after canola syndrome”. Phosphorus enters the corn plant through root hairs,...
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My winter wheat has been fertilized with nitrogen, but is so thin it is going...
Answer provided by John Heard, MAFRD Crop Nutrition Specialist Our initial experiences of soybeans and high nitrogen soils in Manitoba were negative. High soil N tends to inhibit nodulation while at...
View ArticleGOT YELLOW CORN? Using Tissue & Soil Analysis to Confirm Nutrient Deficiency
Not only are soybeans turning yellow in Manitoba, but corn is as well. So how do you confirm a nutrient deficiency is causing the yellowing? John Lee of AGVISE Laboratories provided MAFRD staff last...
View ArticleMy corn is quickly approaching knee-high in height and with the wet...
Nitrogen application is critical to corn as it nears the knee high stage. Up to this point, the plant has consumed little N but will be taking up 2.5 lb/ac/day as it approaches tasselling....
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Dry Seedbeds & Seedling Toxicity
The most critical nutrient for early season growth is phosphorus and for quick accessibility it is best placed with or close to the seed. In some crops, seeding configurations and soil conditions, all...
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Volatilization of Surface Applied Urea/UAN
Surface broadcasting of N fertilizers has become popular to increase operational efficiency – increasing the speed of seeding and reducing risk of seed injury. Growers must consider the risks of...
View ArticleSafe Liquid Fertilizer Rates for Corn
Much of Manitoba’s corn receives liquid phosphorus as a starter in the seedrow. But we cannot apply sufficient amounts with the seed to meet full crop removal (about 44 lb P2O5/ac for a 100 bu/ac...
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