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Archive | Fertilizers

Book of the Week: Secrets of Fertile Soils

By Erhard Hennig

Editor’s note: This is an excerpt from Acres U.S.A. original book, Secrets of Fertile Soils, written by Erhard Hennig. Copyright 2015, softcover, 198 pages. $24.00 regularly priced. SALE PRICE: $19.20.

Humus forms as a result of the complicated interplay of inorganic conversions and the life processes of the microbes and tiny creatures living in the soil. Earthworms play a particularly important role in this process. Humus formation is carried out in two steps. First, the organic substance and the soil minerals disintegrate. Next, totally new combinations of these breakdown products develop, which leads to the initial stages of humus. Humus formation is a biological process. Only 4–12 inches (10–30 centimeters) of humus-containing soil are available in the upper earth crust. This thin earth layer is all that exists to provide nutrition to all human life. The destiny of mankind depends on these 12 inches!

Secrets of Fertile Soil

Cultivated soils with 2 percent humus content are today considered high-quality farm land. What makes up the remaining 98 percent? Depending on the soil type, soil organisms constitute about 8 percent, the remains of plants and animals about 5 percent, and air and water around 15 percent.

The remaining 70 percent of soil mass is thus of purely mineral origin. The mineral part of the soil results from decomposition and the erosion of rock. The dissolution of these components is carried out by the lithobionts, which can be seen as the mediators between stone and life. It was, once again, Francé who coined the term “lithobiont,” which means “those who live on stone.” The lithobionts are the group of microbes that begin the formation of humus. They produce a life-giving substance from the nonliving mineral. On the basis of this process, living matter, earth, plants, animals, and human beings can begin, step by step, to build.

Only soils with an optimal structural state of tilth have a humus content of 8–10 percent. Untouched soils in primeval forests can, at best, reach 20 percent. A tropical jungle can’t use up all its organic waste, so humus can be stored. All forests accumulate humus, but real humus stores only emerge over the course of millenniums. Once upon a time accumulations of humus known as chernozem (Russian for black earth) could be found in the Ukraine.

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Book of the Week: The Biological Farmer, 2nd Edition

By Gary Zimmer with Leilani Zimmer-Durand

Editor’s Note: This is an excerpt from Acres U.S.A. original book, The Biological Farmer, written by Gary Zimmer. Copyright 2017, softcover, 518 pages. $30.00 Regularly Priced.

What’s Wrong with the N-P-K Approach to Farming?

Does it make sense to use high levels of only highly concentrated water-soluble nutrients? The N-P-K-pH chemical approach to farming is both incomplete and wasteful.

Nitrogen — Managing nitrogen should not be just mathemati­cal. Crop rotation, the nitrogen source used, and when and where the nitrogen is applied all have a bearing on how much nitrogen we need, as does soil air, soil life, organic matter, and

The Biological Farmer, 2nd Edition

the presence and balance of other elements (such as sulfur and calcium). Biological farmers do not want to use any more nitrogen than absolutely necessary, not only because of cost and possible environ­mental pollution, but also because excess nitrogen suppresses long-term stable biological processes in the soil.

Research from the University of Minnesota has found that corn yields are highest when legumes are added to the rotation (O’Leary, Rehm, and Schmitt, 2008). By including soybeans, alfalfa, or other nitrogen-fixing plants, it is possible to grow your own plant-avail­able nitrogen and reduce fertilizer requirements. Now consider how conventional thinking advocates applying more nitrogen to increase yield. Is yield always increasing as much as the nitrogen applied? Are your added fertilizer dollars getting you results? If not, what happens to the extra nitrogen you apply? Does it benefit the soil, the environment — or your water? What are the overall costs? Continue Reading →

Quest for Quality: Growing Nutrient-Dense Crops

For Central Virginia farmers Dan Gagnon and Susan Hill, the best proof that they’re doing things right with their soil to produce nutrient-dense crops comes from the mouths of babes and customers facing health challenges.

Dan Gagnon discusses soil structure at Broadfork Farm in Chesterfield, Virginia.

Gagnon and his wife, Janet Aardema, operate Broadfork Farm in Chesterfield, Virginia. Gagnon likes to observe how children interact with food. His youngest son Beckett, 3, last winter used organic store-bought carrots to dip into salad dressing while Gagnon’s mom was looking after him. But he would not eat the carrots.

When she dropped him off, Gagnon had just dug some overwintered carrots. Despite a bit of dirt clinging to them, Beckett gobbled them up. “The feedback from customers that we continue to get has been very encouraging,” said Gagnon. “Also, a child’s palate is a great indicator of the quality of your produce.”

Hill, who grew up outside Helena, Montana — where, she says, if they didn’t grow it, they didn’t eat — cooks for a woman who has multiple sclerosis; another customer has cancer and another, Lyme disease. Continue Reading →

Transitioning to Organic: Strategies for Success

The year two spring rye crop — note how few weeds are present. This rye grew well during the spring and early summer, and was ready for harvest in mid-July. Below shows the rye straw after the grain was combined. Yields were about 35 bushels/acre of rye seed the first year and 4 bales of straw/acre. This year, the yield was 52 bushels/acre of rye seed and 8 bales of straw/acre.

With conventional prices for corn, beans, wheat and dairy really low right now and both prices and demand for organic products high, a lot of growers are thinking about transitioning to organic.

For most growers, one of the biggest deterrents to going organic is the 36-month-long process of transition, during which time you can use only organic-approved inputs and practices, but the crops, milk or other farm goods produced can’t be sold as “organic” and receive the price premium.

In my opinion, chasing profits is not the right reason to go organic, and there is more to it than not adding prohibited inputs and getting paid more for your crops. Being a successful organic farmer requires a different mind-set, and the best time to figure out your approach to organic farming and set yourself up for success is during the transition period.

Before Transitioning to Organic 

If you’re considering transitioning to organic, the first thing you should do is sit down and think about why and then think about how. If your answer to why is that you are doing it for the money, maybe it’s not for you. Continue Reading →

Book of the Week: Food Power from the Sea by Lee Fryer and Dick Simmons

Editor’s Note: This is a combination of two smaller excerpts from the 1977 book, Food Power from the Sea, which was published by Acres U.S.A. and is still one of our best sellers.

By Lee Fryer and Dick Simmons

Since Romans, Bretons, Scots, Vikings, and Spaniards used seaweed for fertilizer ever since the time of Christ, it is not surprising that Portuguese settlers near Cape Cod used this resource in growing vegetables for Boston markets. Old timers of that area remember stories of the seaweed harvests by market gardeners after every storm, when they piled their carts high with the briny stuff to use in growing potatoes, corn, turnips, carrots, cabbages, and other kinds of produce. Their crops claimed highest prices because of the fine flavor and quality attributed to the seaweed.

Food Power from the Sea, by Lee Fryer and Dick Simmons

Nor is it surprising that tobacco growers of Connecticut learned to use seaweed to fertilize tobacco well over 100 years ago. Seaweed is high in potash (about 3 percent) and potassium is a favored nutrient for growing fine tobacco.

The demand for seaweed must have been strong, since Luther Maddocks of Boothbay, Maine, a skilled fisherman, quit fishing in 1869 and went into production of seaweed fertilizer for sale to Connecticut tobacco farmers.

He says, in his autobiography, “That was 1869 . . . I sold out my fishing gear to the Suffolk Oil Company and decided to locate at Boothbay Harbor, where I have lived ever since. My first undertaking at Boothbay Harbor was to build the Algea Fertilizer Company plant. I was making the fertilizer from dried and ground sea­weed. I had a United States patent on it and a con­tract with the Quanipaac Company of New Haven (Connecticut) for $30 per ton for all I could dry and deliver in three years. This looked better to me than the fish business, and in the fall of ’69 I built and equipped the factory which I have since used for many purposes and which is now a canning factory.”

Luther Maddocks then goes on to describe the difficulties of drying and grinding seaweed which, he says, “Becomes tough like leather and impossible to grind.” However, he learned to cool the seaweed suddenly, then grind it into a suitable texture for use as fertilizer.

Living from 1845 to 1932, Luther Maddocks was America’s first entrepreneur to harvest seaweed and process it for use in farming, for tobacco farmers of the New Haven and Hartford areas.

Oscar Wood’s Giant Beanstalk in 1975

Living in West Seattle near Alki Point, Oscar Wood has walked along Puget Sound beaches for fifty years. He is known to his neighbors and friends as an old semipro baseball player who played several seasons for the Seattle Indians; and who worked for Ma Bell’s telephone company in the Seattle area for thirty-seven years.

Recently, Oscar Wood has been seeing how high he could grow a bean plant, using the Scarlet Runner variety. He does this, he says, “Mostly for fun and for seed to give away, and to see how high it will go.”

In 1974, Oscar Wood’s bean plant reached a height of 19 feet and its picture was shown in the West Seattle Herald. However, in 1975, Oscar fed his beans seaweed, and they at­tained a height of 24 feet.

Says Oscar Wood, “I plant two circles of seed, but of course it is one particular vine that reaches to the top. As to the seaweed, it is the green ribbonlike and ruffied variety, and sometimes the tide has left our beach covered with it. Our son-in-law raked up and loaded about six wheelbarrows full onto his trailer and put it in his compost, and he really raises a garden. One hill had forty-four large potatoes in it, besides about twenty little ones this year. We wash some of the salt water off the seaweed first. We only applied it once.”

To our knowledge, during forty years of hearing farmers and gardeners tell about their big crops, Oscar Wood has the world record beanstalk.

Author of such classic works as The American Farmer and Earth Foods, the late Lee Fryer was undoubtedly one of the greatest minds and voices in the service of sustainable agriculture. In addition to his powerful writing, Fryer worked to improve American agriculture through 30 years’ experience in the USDA and the farm and garden supply industry, where he helped hundreds of farmers and gardeners to grow safe, nutritious food crops. A longtime associate in Fryer’s research, writing and work with fertilizer technologies, Dick Simmons was a marine biologist, chemist and fertilizer agronomist.