Warm soil temperatures may speed up potato emergence

Vikram Bisht
June 04, 2018
By Vikram Bisht

Manitoba, in general, had a slightly delayed start of planting in 2018; about a week later thanin 2017, reports Vikram Bisht in the first Manitoba Potato Disease Report of the season. The majority of planting started in first week of May, and mostly finished by the end of May. Early planted fields have good emergence. June 1 has been set for initiation/accumulation of P-Days and late blight Disease Severity Values. P-day is a measure of heat available for crop growth and development, and values accumulate when temperatures range between 7 C and 30 C.

Weather conditions since planting have been very warm, with a few days over 30 C. Precipitation has been below normal for May, except for a few scattered heavy rain events towards end of May. This week’s rain should help ingood emergence and stand.

The current soil temperatures are 2 C to 5 C warmer than end of May last year. These warm soil temperatures and may speed up emergence.

Cull piles are an important source of inoculum for many diseases including late blight. It is important to dispose of properly the cull piles before thunderstorms arrive.

Add comment


Security code
Refresh

Subscription Centre

 
New Subscription
 
Already a Subscriber
 
Customer Service
 
View Digital Magazine Renew

Most Popular

Latest Events

Potato Research Field Day
Wed Aug 22, 2018 @10:30AM - 02:00PM
Ontario Potato Field Day
Thu Aug 23, 2018 @ 3:00PM - 08:00PM
Variety and Crop Tour - AAFC Harrington Farm
Wed Sep 12, 2018 @ 1:00PM - 04:00PM
PEI Potato Conference
Tue Feb 19, 2019

We are using cookies to give you the best experience on our website. By continuing to use the site, you agree to the use of cookies. To find out more, read our Privacy Policy.