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Archive | Soils

Reversing Climate Change through Regenerative Agriculture

By Andre Leu, International Director of Regeneration International

This year’s Acres U.S.A. Conference features numerous speakers, who can show how we can reverse the disruptive effects climate change by adopting best practice regenerative production systems. These systems will also make our farms and ranches more productive and resilient to the current erratic climate disruption that we are all facing.

Andre Leu international director of Regeneration International

Andre Leu is the international director of Regeneration International

The increasing erratic and disruptive weather events caused by climate change are the greatest immediate threat to viable farming and food security. We are already being adversely affected by the longer and more frequent droughts, and irregular, out-of-season and destructive rainfall events.

The world is already around 1.8 degrees Fahrenheit (1 degree Celsius) warmer than the industrial revolution. The energy needed to heat the atmosphere by 1.8 degrees is equivalent to billions of atomic bombs. I am using this violent metaphor so that people can understand how much energy is being released into our atmosphere and oceans and why we will get more frequent and stronger storms wreaking havoc in our communities.

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Branching Out: Farmers Embrace Alternative Orcharding

The time is ripe to take a new look at orcharding design and function. Around the country, from Michigan’s cherry trees to New York State’s apple and peach crops, orchards have been hit with crop losses after late frosts during the past few seasons. Disease pressures, such as those impacting the Florida citrus industry, are another major concern. In circumstances such as these, growers who aren’t diversi­fied may have lost their primary in­come for the year.

Seaberry (sea-buckthorn) is one of many crops grown at Hilltop Community Farm.

The sustainability of a system de­pendent upon one cash crop, along with the lack of diversity inherent in such systems, combined with increas­ing concerns about the amount of chemicals used in conventional fruit and nut production, has led a new wave of orchardists to explore alterna­tive methods of growing fruit.

Forward-thinking growers are uti­lizing a variety of means to reinvent the way an orchard grows. They are cultivating rare, unusual or native fruits, growing in a scale-appropriate manner and addressing orchard di­versity through polyculture and mim­icking natural ecosystems. Continue Reading →

Sunn Hemp: Soil-Building Superhero with Forage Potential

Sunn hemp, a tropical plant primarily grown as a cover crop or green manure, has increased dramatically in popularity over the last decade. Originally from India, it’s easy to understand what makes it so popular among vegetable and row crop farmers in the United States.

Grazing must be timed appropriately or sunn hemp will grow beyond the reach of foraging livestock.

Sunn hemp possesses many soil-building traits, including high rates of biomass production — over 20 percent greater than crimson clover and hairy vetch in research trials. It is not only resistant to plant root nematodes but actively suppresses them. In as little as 60 to 90 days it can produce 120 pounds of nitrogen per acre and can suppress weeds up to 90 percent.

Sunn Hemp is adapted to a wide variety of soil and environmental conditions, thriving through hot, dry summers and continuing to grow until the first frost. But sunn hemp isn’t just a soil builder — it also offers benefits as a forage producer. Recent on-farm grazing trials have yielded an abundance of information on using this crop for grazing. Continue Reading →

Increasing Soil Organic Matter Through Organic Agriculture

Numerous scientific studies show that soil organic matter provides many benefits for building soil health such as improv­ing the number and biodiversity of beneficial microorganisms that pro­vide nutrients for plants, including fixing nitrogen, as well as controlling soilborne plant diseases. The decom­position of plant and animal residues into SOM can provide all the nutri­ents needed by plants and negate the need for synthetic chemical fertilizers, especially nitrogen fertilizers that are responsible for numerous environ­mental problems.

Organic (above) vs. conventional (right). The higher levels of organic matter allow the soil in the organic field to resist erosion in heavy rain events and capture more water.

The year 2015 was declared the International Year of Soils by the 68th UN General Assembly with the theme “Healthy Soils for a Healthy Life.” I was particularly pleased with the theme because this is a message that we in the organic sector have been spreading for more than 70 years, and at first we were ridiculed. Now there is a huge body of science showing that what we observed in our farming systems is indeed correct.

“Organic farming” became the dominant name in English-speaking countries for farming systems that eschew toxic, synthetic pesticides and fertilizers through J.I. Rodale’s global magazine Organic Farming and Gar­dening, first published in the United States in the 1940s. Rodale promot­ed this term based on building soil health by the recycling of organic matter through composts, green ma­nures, mulches and cover crops to increase the levels of soil organic matter as one of the primary management techniques.

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Book of the Week: Foundations of Natural Farming

By Harold Willis

Editor’s note: This is an excerpt from Acres U.S.A book, Foundations of Natural Farming, by Harold L. Willis. Copyright 2008, softcover, 367 pages. Regular price: $30.00.

Foundations of Natural Farming by Harold Willis

My, it’s dark down here in the soil. No wonder most people know so little about it. But that’s why we’re here, so let’s learn. Soil is the absolute basis of agriculture, and thus of all human existence, for as we have seen, we either eat plants grown in soil, or animals which eat plants grown in soil. Our soil has been called our most important national resource. Wise use and management of the relatively thin upper layer, the topsoil, is vital for maintaining good health and a high standard of living.

But through misuse, about 7–10 tons of topsoil per acre are being lost to erosion each year in the Midwest (the figure can be much higher in the worst areas). It may take several hundred years for 1 inch of soil to form. Obviously, we can’t keep on sending our topsoil down the river much longer.

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Full Nutrition with Sea Solids & Wheat Grass

Rancher, Farmer and Professor Don Jansen Discusses the Hidden Hunger of Plants, Animals

Don Jansen is shown here in front of the hydroponic garden at Gulf Coast University. The sign tells of an experiment by Ocean Grown Foods, Inc. The nutritional uptake of various plants, weight and production were all made parts of the experiment.

The short biography that usually attends the presentation of an Acres U.S.A. interview is in fact contained in the questions and answers that follow. Here it is enough to point out that our conversation with Don Jansen of Fort Myers, Florida, is really a follow-up to the re-publication of physician Maynard Murray’s exposition of his pioneering work with sea solids, Sea Energy Agriculture, coauthored with Tom Valentine in 1976.

How a college professor with a Nebraska ranching background made the transition from the High Plains to Florida’s hydroponic scene makes for one of the most enlightening interviews conducted by Acres U.S.A. over the past 32 years. Here we proceed to unlock some of the ocean’s secrets as the nutritional center of gravity for planet Earth.

Don Jansen was a student and disciple of Dr. Maynard Murray, and he has now inserted lessons learned on pastures, in fields, gardens and hydroponic beds into the wheat grass juice remedy made famous by Ann Wigmore. Continue Reading →