N Field logo

This Week on N Field: Insect Survival After Polar Vortex

February 1, 2024
What impact did the polar vortex have on those troublesome agricultural insects that are taking a winter nap? Nebraska Extension Educator Amy Timmerman weighs in.

Read more

Hardiness zone map for 2023
USDA map for hardiness zones in Nebraska.

USDA ‘Hardiness’ Zone Sees Few Changes for Most of Nebraska

December 19, 2023
The new hardiness zone map for Nebraska has shifted the southernmost regions into a new zone — a refinement to the map due to a nearly doubled amount of available weather station data for the region.

Read more

N Field logo

This Week on N Field: Winter Pesticide Storage

December 1, 2023
It's critical to properly store your leftover pesticides during the winter to retain effectiveness, and checking the label is the first step. Watch this N Field for more pesticide considerations as the temperatures drop.

Read more

N Field logo

This Week on N Field: Frost and Prussic Acid

October 27, 2023
Sorghum, soghum-sudan and milo are great options for fall grazing, but producers should be cautious of frost damage and prussic acid prior to putting cattle out to graze.

Read more

14 day temp outlook map

Weekly Weather Update and Outlook: Oct. 12, 2023

October 13, 2023
Nebraska will have another dip in temperatures this weekend into next week, with many sites from Hastings to the east-central part of the state potentially receiving their first freeze.

Read more

Closeup of combine harvesting soybean
While soybean residue can be grazed, it has much lower crude protein levels than soybeans, so producers using soybean residue as feed should also supplement to meet a dry cow's nutrient requirements..

Pasture and Forage Minute: Prussic Acid Following Freeze, Soybean Residue for Forage

October 12, 2023
Learn more about avoiding prussic acid poisoning in sorghum following a freeze, and why producers should always supplement when feeding soybean residue.

Read more

Frozen sorghum-sudangrass
Once a freeze occurs, it takes seven days for prussic acid to dissipate from forage sorghum species like sorghum-sudangrass. The hours immediately after a frost have the highest level of toxic compounds in these plants.

Frosted Sorghum and Prussic Acid

October 6, 2023
A review on how to safely graze forage sorghum species after freezing temperatures.

Read more

Oct. 7 temperature outlook

Weekly Weather Update and Outlook: Oct. 5, 2023

October 6, 2023
Nebraska's first freeze for the season is expected tonight, followed by mild weather until mid-week, when another chance of precipitation is anticipated to arrive. 

Read more