Spring Frost: Take a Few Days to Assess Damage

Jun 04, 2013

Canola Council of Canada Canola Watch Alert

Frost hit some canola growing regions on the weekend (eastern Saskatchewan and Manitoba). Two key questions arise after a frost:

1. Did the crop survive? (Do I need to reseed?)
2. When can I resume weed control?

How to answer the questions:

Did the crop survive? It can take a few days before you can accurately answer that question. With a light frost of 0 C to -2 C, the risk of crop damage is minimal. With a heavy frost that kills off the cotyledons, it takes a few days before new leaves will start emerging from the growing point between the cotyledons. (Top photo) If no growth occurs within this time, the plant is likely dead. Also, if the stem (hypocotyl) is pinched off or the plant flops over, the plant will likely die. The pinched off or broken stem cannot provide nutrients to the growing point. (Bottom photo) See a video.

Check the whole crop 24-28 hours after a frost and again 3-4 days after a frost to assess the situation. Click here for tips on how to check the field.

View full report..Click here

Source: Alberta Canola Producers Commission

Video: What Is Remote Sensing In Precision Agriculture? - The World of Agriculture

What Is Remote Sensing In Precision Agriculture? In this informative video, we will dive into the fascinating world of remote sensing and its role in precision agriculture. Remote sensing technology allows farmers to gather critical information about their fields without the need for physical presence. By utilizing satellites, drones, and aircraft equipped with advanced sensors, farmers can monitor various aspects of their crops, from temperature and moisture levels to overall plant health.

We will explore how the data collected through remote sensing can empower farmers to make strategic decisions for their crops. With the ability to identify specific areas that require more water or nutrients, farmers can optimize resource usage, leading to healthier plants and improved yields.

Moreover, remote sensing plays a vital role in tracking crop growth over time. By comparing images taken at different growth stages, farmers can evaluate their crops’ development and adjust their management practices accordingly.