Water News Archive

Abandoned swine lagoons and earthen storage basins may contain valuable nutrients

When a swine lagoon is abandoned, the owner has the choice of decommissioning the lagoon or maintaining the integrity of the lagoon. Decommissioning means dewatering the lagoon and land applying the sludge at the bottom. One cannot just fill in the hole. The process of removing the water and the sludge is time consuming and takes resources and planning to complete properly. One aspect of the process does have some cost recovery and that is utilizing the sludge in a beneficial way.

Is Your Irrigation System Ready For the Season?

Simple checks you can preform on your center pivots to make sure they are ready for the irrigation season.

Nebraska Weather and Your Water Supply

Nebraska weather is anything but stable and predictable. February reiterated that point to us as we saw record numbers of days with highs in the 70s, our first thunder of 2017 followed by up to two feet of snow in some parts of the state. Severe thunderstorms and tornadoes are most common during May, June and July but they can occur at any time and are increasingly common as warm air patterns begin to dominate during the spring months.

Finding Win/Win Opportunities for Manure

This article is Part 1 of a two-part discussion on the value of manure. Part 2 focuses on soil quality benefits provided by manure and appeared in the March 6, 2017 CropWatch.

Pesticide Safety

Pesticides are a commonly used method of managing pests in our landscapes. However, pesticides are poisons, so they need to be handled carefully. With spring here and summer coming right around the corner, it is a good time to reinforce those safety precautions to everyone who might be using pesticides. 

2017 Sandpit Lake Management Workshops

Nebraska Extension, the Nebraska Department of Environmental Quality, and Game and Parks again have partnered to offer a series of pond and lake management introductory workshops.  These workshops are free and open to everyone who makes decisions for and about lakes and ponds or anyone who wants to learn more about protecting them.  If you’ve ever had an algae bloom, fish kill, murky water, or just want to know what’s going on in the lake, this workshop is for you.  All 2017 workshops are focused on sandpit lakes.

2017 Spring Stormwater Symposium

The 2017 Spring Stormwater Symposium brought together professionals from both public and private sectors to learn from local, regional and national experts. The symposium will focused on examples of stormwater program funding and management, and took an in-depth look into the life cycle of a successful stormwater management project.

Pesticide Leaching & Runoff Management

Runoff and/or leaching can occur when pesticides are carried off the application site into water such as rivers, lakes and streams, wells, storm sewers, or into groundwater. Runoff/leaching can occur when too much pesticide is applied or is spilled on the surface, too much rainwater or irrigation water occurs in a short period of time, or highly water soluble pesticides are used. To gain a better understanding of how, where and why water runs off and how to prevent pollution read the following UNL publications:

Watershed Planning & Management

Watershed planning and management comprise an approach to protecting water quality and quantity that focuses on the whole watershed. This approach is necessary due to the nature of polluted runoff, which in most watersheds is the biggest contributor to water pollution. Polluted runoff is a caused by a variety of land use activities including development, transportation and agriculture, and may originate anywhere in the watershed. Watershed planning and management involves a number of activities including:

Pond Management Tool

A pond is a delicate aquatic ecosystem where multiple interactions affect one another. Knowing the surface area and volume of a pond is critical information to making proper pond management decisions about chemical dose, evaporation/filling rates, fish stocking rates, etc. Inaccurate measurements of area or volume can lead to ineffective aquatic plant management via under dosing, or worse, overdosing. Overdosing can remove too much plant biomass causing oxygen depletion and can potentially lead to fish kills.

Design Tools for Small AFOs

This spreadsheet design tool is used to assist the Sprinkler Vegetative Treatment System  engineer in determining the flow rate, pipeline friction losses, elevation losses, pump capacity, and required horsepower for the pump station. This tool also evaluates the water flow characteristics in the towable sprinkler  system.  Here individual nozzle performance is evaluated along with tube friction loss and water velocity.

Odor Management

Odor emission is of great concern to the general public. An odor management plan is required in the permit application for livestock operations with more than 1,000 animal units. Producers need to understand odor emission from animal housing, manure storage and handling, and land application and available management options.

What is a pesticide?

The public is becoming increasingly concerned about the harmful effects of pesticides on the environment. Protecting water and the environment is a key element of the University of Nebraska-Lincoln Extension Pesticide Safety Education Program (PSEP). It is essential that pesticide applicators understand all aspects of the pesticides they use in order to properly manage them. Whether you want to learn more about protecting human health, the environment, becoming certified and licensed, or improving your bottom line UNL Extension PSEP can help!

Subsurface Drip

Advantages and Disadvantages of Subsurface Drip Irrigation, EC776 (PDF, 1.2 MB; 8 full color pages) Discusses subsurface drip irrigation, including the advantages of water application efficiency and savings, energy savings and potential yield increases and the disadvantges of initial investment, system capacity, design restrictions and emitter clogging.

Livestock & Poultry Expansion: Critical Issues for Discussion with Farmers and Communities

There is a growing interest in establishing new livestock and poultry facilities in Nebraska, many of which will involve contractual arrangement with supply chain partners. Our purpose is to inform Extension educators and other farm advisors on those critical issues to be considered in the planning of a new livestock/poultry facility and prepare these advisors for leading farmers successfully through this process.

Standard Drawings

Alfalfa valve profile block Deadhead standard offset Deadhead standard offset with valve Diesel pump with clutch

Weekly Irrigation Newsletter: Using Soil Water Tension to Schedule Irrigation in East-central Nebraska

In 2024, Nebraska Extension started a new collaboration with three growers located in east-central Nebraska. We installed a set of three watermark sensors at 1-, 2-, and 3-feet soil depth and the sensors were connected to datalogger (IC-10 model from Irrometer) to record and store hourly data at one-hour intervals. The data can also be accessed remotely for quick irrigation decision.

Crop Water Use

For more in-depth coverage of Crop Water Use issues, ETgages and Water Sensors, see Agricultural Irrigation.

Water Optimizer Tool

The Water Optimizer tool evaluates single fields for several crop options. Irrigated crops include: corn, soybeans, sorghum, wheat, alfalfa, edible beans, sunflowers, and sugar beets. Dryland crops include: corn, soybeans, sorghum, sunflowers, alfalfa and wheat in continuous, summer fallow and eco-fallow rotations.

Example: Estimating Manure Phosphorus Application Rates

The Nebraska P-Index developed by the University of Nebraska (2006) will be used for analysis. The P Index risk value is the sum of the erosion and runoff components. The interpretation of risk and recommended manure application risk fall into one of four levels: low, medium, high, and very high.