Tag Archive for: Soil Health

,

Dale Strickler: Ranching for Rain and Drought Resilience

In this video, Dale Strickler explains how to make your ranching operation more resilient. He goes in depth about optimizing your grazing to catch and hold more water in soil. Strickler is a rancher, educator, and agronomist who consults internationally on sustainable farming. His 2018 book, The Drought Resilient Farm, details myriad ways to restore soil biology, build resilience to droughts and floods, and create enduring health, wealth, and happiness for farmers.

This video is based upon work that is supported by the Natural Resource Conservation Service, U.S. Department of Agriculture, under number NR203A750001C025. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the U.S Department of Agriculture. USDA is an equal opportunity employer and service provider.

This video is produced by the National Center for Appropriate Technology through the ATTRA Sustainable Agriculture program, under a cooperative agreement with USDA Rural Development. ATTRA.NCAT.ORG.

,

Dale Strickler: Building Drought Resilient Soils

In this video, Dale Strickler explains how to catch and hold more water on your ranch. Strickler is a rancher, educator, and agronomist who consults internationally on sustainable farming. His 2018 book, The Drought Resilient Farm, details myriad ways to restore soil biology, build resilience to droughts and floods, and create enduring health, wealth, and happiness for farmers.

This video is based upon work that is supported by the Natural Resource Conservation Service, U.S. Department of Agriculture, under number NR203A750001C025. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the U.S Department of Agriculture. USDA is an equal opportunity employer and service provider.

This video is produced by the National Center for Appropriate Technology through the ATTRA Sustainable Agriculture program, under a cooperative agreement with USDA Rural Development. ATTRA.NCAT.ORG.

Healthy Soil Structure – The House of Life

By Justin Morris

Could you ever live in a house that collapsed on itself? Probably not. To begin living there, we would have to rebuild the house by adding more space between the walls, ceiling, and floor. By the same token, soil life cannot live in soils that have collapsed where there is no place for them to live. They need enough space provided by good soil structure to live and grow. And because healthy soil structure is so important to creating resiliency to droughts and floods, as well as providing nutrients for growing our food, healthy soil structure is the house of life! 

What is Soil Structure? 

Soil structure is the arrangement of individual soil particles and the space between them. Soil microorganisms fed by sugars released by plant roots group soil particles together into larger units called aggregates. Soil structure can vary from granular where there is a lot of space between aggregates (think cottage cheese or a fluffy chocolate cake; see Photo 1) to being very tight and compact where there is very little to no space between soil particles and no aggregates are visible (see Photo 2).   

Why is soil structure so important? 

Photo 1: Healthy soil has a granular or crumbly structure. Photo: USDA-NRCS

Agriculture is the conversion of solar energy into harvestable, life-giving energy. Solar energy is captured by plants, which release that energy in the form of biochemical compounds to soil life. Soil life produces glue-like compounds that enable sand, silt, and clay particles to rearrange while also bringing nutrients to plant roots. As soil particles rearrange during the aggregation process, cavities called pores are created. Pores allow soil to infiltrate and hold water that’s essential for plants and soil life. Pores also allow air to get into the soil so soil life and roots can breathe while allowing carbon dioxide to be released from the soil. Carbon dioxide rising out of the soil is captured by plants so photosynthesis can continue. Life on earth is dependent on a healthy soil with a granular or crumbly structure that promotes the capture and release of water and

Photo 2: Unhealthy soil with no visible aggregates. Photo: USDA-NRCS

promotes the exchange of gases. In short, a granular soil structure allows soil life and plants to drink and breathe.  

Think of soil structure like a house. The wood, concrete, and steel that make up the foundation, floor, walls, and ceiling are like sand, silt, and clay particles. The nails, screws, and staples are like the glue-like compounds secreted by plant roots and soil life. With nails, screws, and staples in place, the house has lots of room to live inside. But if a large earthmover moves through the house, the house collapses and the livable room inside the house is eliminated. Similarly, when tillage or another disturbance happens too frequently, the soil structure collapses on itself. Collapsed soil structure diminishes the habitat soil life needed to obtain nutrients for plants and to facilitate water infiltration and air movement.  

What are the key practices that can improve soil structure? 

Practices that can facilitate improved soil structure include the following: 

  1. Reduced tillage, strip tillage, or no-till 
  2. Three or more crops in rotation from three different plant families 
  3. Cover crop mixtures with at least eight plant species and three plant families
  4. Grazing perennial pastures that focuses on: 1) adequate leaf area post-grazing; and 2) full plant recovery pre-grazing 
  5. Grazing cover crop mixtures on cropland where possible 
  6. Mulching 
  7. Controlled traffic farming 
  8. Converting annual cropland to perennial mixtures 

Photo 3: Nine species cover crop mixture. Photo: USDA-NRCS

Healthy soil structure is the house of life. As we focus on improving the life in our soils, that same soil life can begin creating healthy soil structure with plenty of space within and between soil aggregates. This can give us healthy food plus resilience to droughts and floods. That sounds like a win-win-win!

 

Related ATTRA Resources 

Building Healthy Pasture Soils – ATTRA – Sustainable Agriculture (ncat.org)

A Tale of Two Pastures: Pasture Response to Catastrophic Events – ATTRA – Sustainable Agriculture (ncat.org)

Soil – ATTRA – Sustainable Agriculture (ncat.org)

Grazing – ATTRA – Sustainable Agriculture (ncat.org)

This publication is produced by the National Center for Appropriate Technology through the ATTRA Sustainable Agriculture program, under a cooperative agreement with USDA Rural Development. ATTRA.NCAT.ORG. 

Drought Resilience Webinar Series with Dale Strickler

In this webinar series, Dale Strickler covers all aspects of creating drought-free agriculture. Strickler is a rancher, educator, and agronomist who consults internationally on sustainable farming. His 2018 book, “The Drought Resilient Farm,” details myriad ways to restore soil biology, build resilience to droughts and floods, and create enduring health, wealth, and happiness for farmers.

Session 1: Building Drought Resilient Soils

Session 2: Ranching for Rain and Drought Resilience

Session 3: Creating Drought-Free Agriculture

This webinar series is based upon work that is supported by the Natural Resource Conservation Service, U.S. Department of Agriculture, under number NR203A750001C025. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the U.S Department of Agriculture. USDA is an equal opportunity employer and service provider.

This video is produced by the National Center for Appropriate Technology through the ATTRA Sustainable Agriculture program, under a cooperative agreement with USDA Rural Development. ATTRA.NCAT.ORG.

Using Web Soil Survey to Learn Your Land’s Potential

By Justin Morris, NCAT Regenerative Grazing Specialist 

Have you ever wondered where the best place is to get information on the soils for your land? What if that information could tell you what kind of soil you have, how deep it is, how much water it could hold, or how much forage could be grown on each acre of your land in a year. Fortunately, there is such a source. It’s called the Web Soil Survey and you can access it from any laptop or desktop. 

Launched in 2006 by the Natural Resources Conservation Service, the Web Soil Survey allows anyone to define any area they’re interested in within the United States and retrieve all sorts of soil-related information about that area. Here’s just a small sampling of what can be found: 

  • Soil map unit symbol and name 
  • Acres of a specific soil map unit within a defined area 
  • Soil textures in the top five feet 
  • Available water supply in inches for the top five feet 
  • Land capability classification 
  • Average annual precipitation 
  • Frost-free period 
  • Rangeland production during favorable, normal, and unfavorable years 
  • Yields of irrigated and non-irrigated crops including pasture and hayland 
  • And much, much more! 

For those of you who are familiar with the hard copies of the soil survey, those are no longer available. Once you get used to using the Web Soil Survey interface, getting just the information you need without combing through a thick hard copy page by page becomes far easier to use and more accurate. And for those who still want a hard copy of something, not to worry. Everything in Web Soil Survey can be printed.  

You can get started with Web Soil Survey. Once there, click on the big green “Start WSS” button. You’ll see a map of the lower 48 states with several tool buttons just above and to the left of the map. If you happen to be interested in an area in Alaska, Hawaii, or Puerto Rico, just click on the white hand tool to pan to those areas.  

Alternatively, you can jump to any area by moving your cursor over to the menu bar at the far left and clicking on Address or State and County.  

Once you’ve found the area you’re interested in, you can zoom in by using the cursor to select the magnifying lens with the plus symbol inside it. After clicking on the magnifying lens, move the cursor over the map and you’ll notice that the cursor turned into a plus symbol instead of an arrow. Click and drag over the area you want to see in greater detail. If you need to adjust the map east, west, north, or south to get everything in full view, click on the hand button to move the map image.  

Now that you have the area you’re interested in and it’s filling up the entire interactive map view, click on one of two AOI toolbar buttons above the map. The AOI (Area of Interest) button on the left makes a rectangle, whereas the AOI button on the right makes a polygon of nearly any shape. Because field boundaries are rarely ever straight, I almost always select the polygon button. Click around the area you’re interested in and then double-click your mouse to finish the polygon.

If you’ve successfully defined an area of interest, the polygon you traced will have blue diagonal lines through it, as you see above, along with an acreage count for that area. If you weren’t successful on your first attempt to create a polygon, just try again and be sure that on your last corner you double-click your mouse to complete the polygon. If you want to adjust the polygon you just created, then click on Clear AOI on the upper left. Unfortunately, you can’t edit a single point once the polygon has been fully created. This is why you have to clear the area of interest if you want to make any modifications. You can then start over until you get it to look the way you want it to. 

Now, let’s find out what soils are on this field. Scrolling up to the very top of the webpage, click on the Soil Map tab (see below). The blue diagonal lines on the map will disappear and be replaced by lines delineating soil boundaries. For this 125-acre field, there are just two soil map units – map unit 22, which is a Labenzo silt loam, and map unit 64, which is a Withers silty clay loam. Web Soil Survey shows the number of acres for each soil map unit and their percentage of the total. By the way, this is a great feature that the hard copy soil surveys of yesteryear could never tell you.  

Clicking on the map unit name on the left of the screen reveals a new window with lots of great information about that soil (see below). Here we see the map unit description for the Labenzo silt loam, which includes information on where the soil is generally located, its composition, setting, typical profile soil texture, and properties. 

After clicking on the X in the upper right corner to eliminate the map unit description window, go to the top of the screen and click on the Soil Data Explorer tab (see below).  

 

If you wanted to know what the potential alfalfa hay production is on this field, click on Vegetative Productivity (see above) under the Suitabilities and Limitations Ratings menu. This reveals a lot of different crops, some of which are not suitable for growing in this environment. Scroll down the list of different crops and click on Yields of Irrigated Crops (Component). Click on the dropdown menu and select Alfalfa Hay. Finally, click on View Rating. 

 

Now we have a rating for alfalfa hay in tons per acre for the whole field by soil map unit. The numbers listed under the Rating column are only an estimate and should be used as a rough guide, not as numbers that are absolutely accurate.  

If you want to save this information for the future or print it, click on Printable Version at the top right of the page (see below).  

This is just one of nearly countless ways to find soil and crop productivity information for a specific piece of land. I’ve covered maybe one percent of what Web Soil Survey has to offer. If you have additional questions on how to use this tremendous tool, just contact your local USDA-NRCS office.    

 

Soil Health Academy: More than Just a Soil Health Workshop

By Luz Ballesteros Gonzalez

The National Center for Appropriate Technology’s (NCAT) Soil for Water program and  Understanding Ag provided scholarships enabling seven beginning small-acreage livestock producers from four different states to attend the Soil Health Academy workshop in Uniontown, Alabama, May 17-19, 2022. Scholarships covered workshop costs, which included meals, on-site travel expenses, and materials such as notebooks and cooling cloths. The food provided was grown regeneratively at Bois d’Arc (BDA) Farms, highlighting the importance of local and the sense of community and environmental stewardship.

Soil for Water technical advisor and soil health movement pioneer, Dr. Allen Williams, was one of the speakers at the school, along with two other nationally famous leaders of the regenerative agriculture movement: Gabe Brown and Doug Peterson. The hands-on workshop took place at Dr. Williams’ BDA Farm.

soil health academy partipants

Photo: NCAT

Attendees learned soil health basics and regenerative grazing techniques—more specifically, how to plan adaptive grazing with multiple species to build resilience and profit. Participants experienced intensive mob grazing and the moving of a one-million-pound herd. Additionally, they broke into teams to learn by observation about soils, forage diversity, plant identification, and herd impact. The core message of the training was that “Regenerative agriculture is not a set plan; it is an adaptive plan.” The Soil Health Academy teaches according to the ‘6-4-3’ rule: Six Principles of Soil Health, Four Ecosystem Processes, and Three Rules of Adaptive Stewardship.

A goal of NCAT’s Soil for Water program is to show that regenerative agriculture can be done at any scale, at low cost, and by anyone—beginners and experienced producers alike. To learn about other upcoming regenerative agriculture workshops, check out  NCAT’s event calendar .

New Resources to Demystify Regenerative Grazing and Soil Health

By Nina Prater, NCAT Sustainable Agriculture Specialist

The terms regenerative grazing and soil health have started to seem almost ubiquitous in the world of agriculture. This is heartening for me as a soil specialist with NCAT, where I consider it part of my job to help producers understand and take care of their soils, as it is key to their long-term success as farmers and ranchers.

Photo: Nina Prater, NCAT

As a farmer, the evolution of language around grazing has been interesting to watch over the past 15 years. I first moved to Arkansas and became part of a livestock farming family in 2007, and I’d never heard of regenerative grazing. My husband and I, the third generation of the farm family, did a lot of reading when we returned to the farm and learned about continuous vs. rotational grazing, management-intensive grazing, mob grazing… on and on. We were awash with terms from different schools of thought about grazing management. Instead of getting hung up on the language, though, we just tried to implement a grazing management practice that improved pasture and soil health. When I finally did hear the term regenerative several years ago, it resonated immediately as what we were trying to do. To me, regenerative means restoring health to the whole farm system. I find it to be such an empowering term because it carries with it the implication that soil health can be restored. You’re not just stuck with what you’ve got right now. You can improve the health of your soil through a variety of practices, and in doing so, increase the productivity and profitability of your farm. Isn’t that exciting?!

Thanks to funding from a Southern SARE grant, I have been working to demystify the terms regenerative grazing and soil health for a variety of folks in Alabama, Mississippi, Arkansas, and Texas (and via virtual platforms for people in other places). I think if farmers, ranchers, extension staff, NRCS staff, and other agriculture professionals understand these terms and how to work towards those goals we could see improvement to our agricultural landscapes across the country.

On the ATTRA website, we recently shared two resources that are a part of this project. The first is a recorded virtual workshop that covers soil health, regenerative grazing, and farmer support. It includes presentations by two Arkansas graziers, Jeremy Prater and Rick Crunkleton, who are regenerating their land through their grazing management practices. The second resource is a regenerative grazing presentation, by NCAT’s Regenerative Grazing Specialist Justin Morris, as a stand-alone for folks who want to learn more about that concept specifically.

And in case you missed it, last year we hosted a virtual workshop with Dr. Allen Williams of Understanding Ag, LLC on this topic as well. He is an excellent teacher and explores these topics in great depth, and this workshop would complement the two listed above very well.

I hope you will check these recordings out and start your journey on the path of soil health and regenerative agriculture. And please share with anyone you think would benefit from learning more about these topics!

Related ATTRA Resources:

Livestock and Pasture

Regenerative Grazing 

Soils and Compost 

This blog is produced by the National Center for Appropriate Technology through the ATTRA Sustainable Agriculture program, under a cooperative agreement with USDA Rural Development. This blog was also made possible in part by funding from the Southern Sustainable Agriculture Research & Education (SSARE) Professional Development Program. ATTRA.NCAT.ORG. 

UN Drought Toolbox: Tools for Producers, Land Managers, and Scientists

By: Hernan Colmenero, Sustainable Food Consultant 

The UN Convention to Combat Desertification has released its Drought Toolbox, which contains an abundance of useful information for producers living through a drought. The toolbox includes three modules: Monitoring and Early Warning (great if drought effects haven’t really been felt yet); Vulnerability and Risk Assessment (essential to prepare for against the next drought); and Risk Mitigation Measures (crucial for protecting ourselves now and in the future). It even includes an amazing decision tree for producers or policy makers that helps identify specific actions one can take with high/low drought risk, local/national scales, time of expected return on investment (ROI), by climate type, and by economic sector (livestock, forestry, transit, etc.) One can even get help on specific actions to take by soil type. These resources have been made available because the world at large is recognizing that without soil, humanity cannot survive. We must do everything in our power to catch and hold more water in our soil, regenerate our land, and prepare for a water-scarce future.  

You can read or download the Drought Toolbox here. Don’t forget to let the Soil for Water team know how we can best support you in your efforts to try new regenerative practices on your farm. If you’re a Soil for Water Network member, you can get free professional support from a team member by reaching out at the Soil for Water forum. 

NCAT Webinar Series Addresses Advanced Grazing

By Justin Morris, NCAT Regenerative Grazing Specialist, and  Lee Rinehart, NCAT Sustainable Agriculture Specialist 

Did you know that the most important livestock on your farm are the ones you never purchased and, in most cases, have rarely, if ever, seen? These livestock, along with plant roots, play an essential role in improving soil health, which is the foundation of any agricultural operation. But what is soil health and how does one go about improving it? The NCAT four-part webinar series Advanced Grazing for Regenerating Soils and Enhancing Animal Nutrition begins by addressing this question. 

Soil health is defined as the continued capacity for soil to function as a vital, living ecosystem that enhances the well-being of plants, animals, and humans. Healthy soil should be full of life, from earthworms and dung beetles on the large scale down to bacteria and fungi on the smallest scale. Our very existence is dependent on life that can only be seen, in most cases, under a microscope. Yet it’s these microscopic life forms that create stable soil aggregates that provide a host of benefits ranging from improving water infiltration to improving plant-available water and even improving gas exchange. Well-aggregated soils allow our landscapes to be more resilient to the environmental extremes of severe droughts and floods that are becoming increasingly prevalent and severe.  

So how do we get well-aggregated soils that can make our grazing operations more resilient going into the future? We focus on five soil health principles through our grazing management: 

  1. Optimize disturbance – lack of disturbance is harmful to the soil ecosystem when plants aren’t grazed periodically, and too much disturbance through overgrazing is also harmful as soil life goes on a starvation diet. 
  2. Optimize biodiversity – different plants are associated with different beneficial soil microorganisms that help facilitate soil aggregation in a variety of ways. 
  3. Optimize soil cover – too little cover exposes the soil to extreme weather conditions and too much cover slows down and halts nutrient cycling. 
  4. Grow living roots throughout the year – the longer the time roots grow, the longer soil life is fed that helps to create and maintain more stable soil aggregates. 
  5. Integrate livestock on cropland where possible – livestock grazing a diverse blend of annual forage plants in addition to growing cash crops can improve the feeding of soil aggregate-building microorganisms in addition to growing cash crops. 

In session 1 of the webinar series, we begin to break these concepts down and discuss diversity and disturbance as linchpins that hold a resilient ecosystem together. In resilient pastures, everything is in flux and managers can imitate the natural successional processes through optimized disturbance to move the pasture system toward a natural polyculture and increased biodiversity. 

These principles are followed by a discussion on how physical and chemical processes form stable soil macroaggregates only in association with soil life. Without this collaboration, plants cannot promote the conversion of sunlight energy into carbohydrates, proteins, fats, vitamins, minerals, and medicinal compounds that livestock, and eventually humans, need to thrive.  

We wrap up the session by tying in grazing management principles that enhance and improve pasture resilience and livestock productivity. We detail various ways land managers have provided optimal disturbance that fosters biodiversity and resiliency by the fluctuation of grazing duration and frequency (see figure below).  

Session 1 of the webinar can be viewed here. The remaining three sessions of this series will be held on May 12, May 26, and June at 5 pm Central time. Register here.

This blog is produced by the National Center for Appropriate Technology through the ATTRA Sustainable Agriculture program, under a cooperative agreement with USDA Rural Development. ATTRA.NCAT.ORG. 

Sopping Stories from Waterline Farm

by: Hernan Colmenero

Tammi and Stephen Bell are the kind of couple who believe that less is more. Their motto seems to be to let the plants and animals do the work. That’s exactly what they’re doing at Waterline Farm in Pryor, Oklahoma.

Now, they are not completely hands off. Although they don’t usually mow their lawn, much to the chagrin of their neighbors, their goats do the mowing by grazing it. Similarly, they believe it’s important to first think about infrastructure. That means digging small trenches to direct the flow of water and building hügelkultur mounds to slow and keep water on their land a bit longer. It also means being patient and observing the land. They may agree with Michelangelo when he said “the task of the sculptor [is] to discover [the statue].” They want to discover the beauty of the land and help it become what it wants to become.

The Bell’s goal with Waterline Farm is to become a homestead demonstration site practicing regenerative agriculture with an emphasis on ecological stewardship. Their operation has seen its fair share of challenges, but the Bell family has turned them into opportunities. In 2019, a massive flooding event raised the level of Lake Hudson in Oklahoma, on which their property is located, and crept up several hundred feet onto the pasture. As the water receded, it created natural contour swales, which they used to plant sycamore and oak trees to increase water absorption and retention, therein slowing the flow of water to the lake. Realizing that their shoreline was fragile after seeing how their neighbor’s shoreline receded, they also planted several more sycamore and cypress trees closer to the shore, creating a wide strip of protection. Additionally, they made use of the silt the lake water brought and let the native grasses grow tall, allowing the deep roots to take hold in the soil. This added organic matter, created more soil aggregates, and increased the presence of wildlife, such as Monarch butterflies and a resident bald eagle. Both of those changes served to expand their silvopasture system while making progress on their goals of regeneration and wildlife conservation by simply giving the land more of what it could use.

But not everything can be accomplished by watching from afar. Stephen is adamant that one needs to get their hands dirty, their boots muddy, and observe the land from various places to get an idea of where the water is going and what the land is doing. Then, it’s important to act. In this way, he noticed that rainwater was flowing from his property into his neighbor’s. So, he built up hügelkultur mounds along that edge of his property to slow the flow of water. Most recently, he dug a trench with his 39-hp tractor to direct water to his orchard. All these actions serve to catch and hold more water in their soil, lessening the potentially damaging effects of floods.

Even though the Bell family doesn’t do it for the money (they’re both comfortably retired), they expect to turn a profit this year. They are saving money by not buying costly fertilizers and by supplementing their groceries with the food they grow and harvest themselves. Even their livestock enjoy the fruit of their harvests, which means less spent on buying animal feed. Moreover, their farm has garnered the attention of Food Animal Concerns Trust (FACT), the Oklahoma Forestry Department, the U.S. Department of Agriculture (USDA), the National Center for Appropriate Technology (NCAT), and perhaps most importantly, their fellow community members. Some of this has led to grants and other beneficial financial opportunities. Tammi says it is “the big circle coming back.”

The Bell family says that the peer-to-peer learning systems such as Women, Livestock, and the Land course and the Soil for Water Network, both part of NCAT, have been instrumental to their success. “People feel isolated and when they see others doing something similar, that works,” says Tammi.

Learn more in the YouTube video, Welcome to Waterline Farm.