Farms.com Home   News

Nebraska Water Center Researchers Conduct Statewide Project to Characterize Nitrogen Transformation Beneath the Ground Surface

Nebraska Water Center Researchers Conduct Statewide Project to Characterize Nitrogen Transformation Beneath the Ground Surface

Surface soil, the deeper vadose zone, and groundwater are all interconnected and of particular importance due to Nebraska’s agricultural practices and reliance on groundwater for multiple uses. The vadose zone refers to the unsaturated zone above the water table, where water and air occupy the pore spaces in the soil and rock. It plays a crucial role in filtering and retaining contaminants such as nitrate before it reaches groundwater.

Over-application of nitrogen fertilizer in excess of crop needs, together with inefficient irrigation in sandy soils, can lead to the leaching of nitrate through the vadose zone and to the underlying groundwater. Despite its importance, little is known about transformation of nitrate and occurrence of other forms of nitrogen beneath the soil surface.

To help understand these processes, a research team led by Dr. Arindam Malakar, scientist and research assistant professor in the School of Natural Resources and the Nebraska Water Center part of the Daugherty Water for Food Global Institute at the University of Nebraska-Lincoln, has begun a statewide study to uncover nitrogen transformation in the vadose zone. This project is funded through the USDA Agriculture and Food Research Initiative (AFRI) program and aims to investigate nitrogen transformation in the vadose zone under various irrigation strategies and fertilizer application. With the assistance of the Conservation and Survey Division (CSD), the project started with deep coring beneath the Marie Ratzlaff Prairie Preserve and Homestead National Historical Park in Nebraska. These locations were chosen because they are representative of Nebraska geology but had not received nitrogen fertilizer or irrigation water. The cores collected will be used to create sediment columns to simulate the vadose zone changes that occur when native prairie is converted to cropland. The controlled column studies will trace the journey of nitrogen through the vadose zone under modern irrigated corn production.

Source : unl.edu

Trending Video

Why Seed Analysts are Thriving Under Seeds Canada

Video: Why Seed Analysts are Thriving Under Seeds Canada

Last month in Edmonton, Alta., industry leaders and stakeholders gathered to discuss the evolving landscape of the seed industry at Seeds Canada’s annual conference. Among them was Sarah Foster, president of 2020 Seed Labs and the new vice-president of Seeds Canada.

Foster, who has been on the board of Seeds Canada for over a year, has witnessed firsthand the challenges and opportunities that come with the formation of the organization. Seeds Canada was established just over three years ago through the merger of multiple seed industry groups, including the Commercial Seed Analysts Association of Canada (CSAAC). Since then, the organization has been working to define its priorities and solidify its role in the industry.

“The challenge has been allowing the dust to settle after the merger,” Foster explained. “We’ve been focused on identifying what our priorities should be and ensuring that our members, especially the seed analysts, are getting what they need to continue their professional work.”

One of the recent highlights was a pre-conference event where the three major seed labs in Alberta — 20/20 Seed Labs, SGS Canada and Seed Check — opened their doors to members. The event saw a record number of seed analysts and business professionals in attendance. Foster emphasized the importance of this transparency, stating, “It’s crucial for people to see what goes on behind the scenes. We’re an open book now, and that openness helps build trust and understanding within the industry.”

The event also featured an environmental scan and a series of discussions that fostered strong communication among attendees. According to Foster, the dialogue was both encouraging and inspiring.

“A lot of people were really inspired by the fact that Seeds Canada is moving ahead with its agenda. The seed analysts, who have always worked diligently in the background, are now being recognized more prominently,” she said.

Before the merger, seed analysts were represented by CSAAC. Now, as part of Seeds Canada, they are finding their place within the larger organization. Foster believes that the integration has been successful, noting, “I think we’re thriving. You only need to look south of the border, where similar consolidations are happening.”

As Seeds Canada continues to evolve, Foster remains optimistic about the future. “I want to be totally transparent with anyone who is a seed analyst — I’ve got your back. We’re moving in a positive direction, and we’ll do everything we can to meet the needs of our members,” she said.