Agronomy eUpdate September 8th, 2022

Issue 923

Alfalfa management: Deciding on last cutting this fall

Alfalfa will quit growing after the first hard freeze. In Kansas, this could happen as early as October 1 or as late as November 1. The last cutting prior to dormancy should be made so there will be 8 to 12 inches of foliage, or 4 to 6 weeks of growth time, before the first killing frost.

alfalfa forage last cutting 

Fall soil sampling: Sample collection and submission to K-State Soil Testing Lab

Soil testing provides producers and homeowners important information concerning the fertility status of the soil. This information can help produce better crops and reduce costs by guiding management decisions. Proper sample collection and submission to a testing lab is very important to ensure the most accurate results.

soil sampling soil testing Soil Testing Lab 

The challenge of collecting a representative soil sample

At first glance, soil sampling might seem to be an easy task. However, when you consider the variability that likely exists within a field because of inherent soil formation factors and past production practices, the collection of a representative soil sample becomes more of a challenge. Learn how to collect the best soil samples that will represent your fields.

soil sampling soil testing 

Soil sample handling practices can affect soil nitrate test accuracy

The accuracy of a soil test is limited, in part, by the quality of the tested sample. However, soil samples must also be handled properly after they have been collected. Results from a recent study at K-State illustrates what can happen when soil sample submission to a testing lab is delayed and samples are not properly stored.

soil sampling soil testing nitrate 

Weed management practices: Fall scouting and equipment cleaning

Weed management encompasses more than controlling actively growing weeds. Farmers can be proactive to help prevent the future spread of weeds. Two different management practices are discussed in this article: fall scouting for weed escapes and equipment cleaning.

weed control scouting weed management 

The summer of 2022: Hot and dry across Kansas

The meteorological summer of 2022 began on June 1 and ended on August 31. Between those two dates Kansans endured a dry, hot summer. Drought conditions deteriorated to the worst in nearly a decade. Historically speaking, where does summer 2022 rank on the lists of driest and hottest years?

weather Climate summer  

War Against Weeds podcast kicks off fourth season

Season 4 of the War on Weeds podcast has officially launched! If you haven't already, check out this free podcast hosted by weed scientists in Kansas, Missouri, and North Dakota. There are over 60 episodes available and more on the way!

weed management podcast War on Weeds 

Limited Irrigation Corn Management Field Day - September 13

K-State Research and Extension is hosting a Limited Irrigation Corn Management Field Day on September 13 at 4:30 pm. Attendees will have the opportunity to hear from specialists from K-State and Colorado State on limited irrigation strategies. The event is free and includes dinner courtsey of the event sponsors. Don't miss it!

irrigation Field Day