Category Archives: Micronutrients

NutrientSmart 2.0

From Ian McDonald, OMAFRA, Field Crops Unit:

Where NutrientSmart and FarmSmart in January dealt with the theory of soil management and nutrient use and management of inorganic nutrient sources, NutrientSmart 2.0 will explore the integration of organic amendments such as manures, biosolids, compost, green bin compost, and other sources into a systems approach to nutrient management planning for production in relation to soils. It will explore for both crop and livestock farmers and advisors how to source, apply, match and gain economic and environmental advantage from the use of these important and valuable sources of nutrients.

NutrientSmart 2.0 Progrm Promotion Power Point Slide_FINAL

More information and registration can be found at

Lake Erie draft action plans posted to Ontario Environmental Registry

Two draft action plans have been posted to Ontario’s Environmental Registry for public comments.

Policy Proposal Notice: Canada-Ontario Action Plan for Lake Erie

Comment Period: 60 days. Submissions may be made before May 09, 2017.

Partnering in Phosphorus Control Draft Action PlanPolicy Decision Notice: Reducing Phosphorous to minimize Algal Blooms in Lake Erie

The draft Action Plan is posted for public input and can be found through this link. The Action Plan will be finalized no later than February 2018.

Seasonal Topics – June 6, 2016

Tomato injury from PinnacleJune 6, 2016 — Some topics are relevant year after year, but you might not always take the time to filter through previous posts to find them. I’ve highlighted some here that might be of interest this week. Click on the preview images below to jump to the articles. Continue reading Seasonal Topics – June 6, 2016

Micronutrient Fertilizer Programs

Micronutrients play an essential role in vegetable crop production.  However, planning a fertilizer strategy involving micronutrients can be difficult.  Micronutrient fertilizers are often expensive and, depending on the element, the actual return on your investment is not always obvious. The fear of a shortfall often outweighs the actual potential for deficiencies.

Continue reading Micronutrient Fertilizer Programs

Micronutrient Fertilizer Sources – a small amount goes along way

By Christoph Kessel, Nutrition (Horticulture) – Program Lead, OMAFRA

Crops require boron, copper, iron, manganese, molybdenum or zinc in relatively small amounts.  If your soil test report recommends the application of one of these micronutrients, there are several organic and inorganic sources from which to choose.

Soil organic matter and organic sources such as composts and manures are an often overlooked micronutrient storehouse.  For example a one ton manure application can provide (in lbs) 0.02-0.1 boron, 0.04-06 copper, 0.4-2 iron, 0.2-1.0 manganese, 0.0002-0.01 molybdenum, and 0.2-1 zinc.  Micronutrient content depends on the source but an added benefit is that they are generally already in the plant available forms.  With planning and careful management, organic sources can provide a long term sustainable micronutrient source to plants. Continue reading Micronutrient Fertilizer Sources – a small amount goes along way