Land Application

Manure application on frozen or snow-covered soil poses a higher risk of nutrient loss through runoff.

The Animal Manure Management team has opted to change the format of live Land Application Training events this year. In February and March, the team will host a series of three1.5-hour long zoom sessions that will serve as the first portion of initial land application training. Recertification training and the last segment of initial training will be held at a later date, hopefully in-person. Anyone is welcome to participate in the zoom sessions, but participation at each session will be limited to keep them interactive and informative.

Current manure application practices have little to no precision application capabilities compared to other modern agricultural equipment. Due to some recent emerging technologies being released on the market, manure application is finally joining the digital age. This article summarizes these new precision manure application technologies.

The UNL manure team has been working on building an app to connect the public to the manure people they need, and maybe learn a little bit about manure along the way. Our goal with the app is to enable folks to find a manure applicator, broker, advisor, or resource person in their area. We’ve been testing and updating, and we think it’s ready for its full debut! The app is available for both Android and Apple devices.

Manure produced in animal feeding operations is a source of fertilizer that can be used to reduce our dependency on commercial fertilizers. Manure contains several essential nutrients that crops that crops rely on to grow, most notably nitrogen and phosphorus. Proper management of manure before, during, and after land application helps to slow down the contamination of our streams and reservoirs.

There are many challenges associated with variable rate manure applications such as variable nutrient content within the manure source and nutrient availability, application equipment, and prescription methodology. However, in many cases, these challenges are outweighed by environmental and economic benefits from variable rate manure applications.

This year’s Land Application Recertification sessions, called Applying Manure Management Concepts On-Farm, are scheduled to be in-person at many locations across the state in June, with one taking place in May in Lexington. Manure trainings earlier this year were held virtually, but we’re making progress, and that means we’re looking forward to seeing everyone in-person for the next manure event.

When it comes to animal manure from feedlots being applied to the land in Nebraska, developing management practices that efficiently uses the nutrients from manure while being environmentally sustainable can be a complicated process. This article introduces some land application approaches for beef and dairy feedlot systems.

Soil quality has been traditionally described in terms of chemical and physical properties; however, soil organisms play an important role in soil health. Some studies suggest that using manure as soil amendment could result in increased microbial biomass, which results in higher soil bacteria, fungi and higher microbial activity. Soil microbial activity is crucial for nutrient cycling, aggregate stability, fertility, and other soil characteristics leading to better crop productivity.

With silage harvest coming up quickly, manure application will soon follow. Because silage is often the first crop to come off the field, it allows for earlier manure application and thus an earlier cleanout of pens before winter. As that manure application plan develops, include best stewardship practices for optimum rates and preferred application methods in final decisions.

Fertility is critical to a good crop, so we know not to ignore our crop fertility needs, but we don’t always think about ways we may be able to trim costs by better utilizing local nutrients. Manure has many benefits, including some related to soil health, but perhaps the most recognized benefit is that manure contains the nutrients our crops need. Manure isn’t always an inexpensive product, but it contains multiple nutrients that are highly valued when planning your fertility program.

University of Nebraska-Lincoln (UNL) has changed recommendations for crediting nitrogen following manure applications for field crops. New research has shown that most manures are similar changing the organic-nitrogen availability factors.