AcresUSA.com links

Archive | Soil Fertility

Learn how to create and maintain fertile soil, including balancing minerals and nutrients, when and how to use fertilizers, and about composting. Become familiar with soil life, including earthworms, dung beetles and soil microbes.

hands holding soil

The Role of AM Fungi in Agricultural Ecosystems

As those billions of microbes in a handful of soil go through their life cycles living and dying, they are providing a constant source of nutrients. Arbuscular mycorrhizal fungi are capable of passing both organic and inorganic forms of phosphate to plants. One of the huge differences between our cropland soils and natural ecosystems is […]

Fungal growth covering the grain signals the completion of the initial culture (in a box).

Biological Inoculants for Soil Health

As part of efforts to improve the soils and quality and yield of produce at Tobacco Road Farm we have been utilizing a biological inoculant made from locally sourced microorganisms. This inoculant material is referred to as IMO (Indigenous Microorganisms). The techniques for IMO culturing come from the principles of Korean Natural Farming (KNF), an […]

Front cover of Science in Agriculture

Book excerpt: Science in Agriculture by Arden B. Andersen

In his book Science in Agriculture, author Arden B. Anderson sought to apply true, natural science to agriculture. Readers should gain a working knowledge of chemistry, physics, and plant biology as applied to agriculture; discover what weeds are communicating about your soil’s fertility needs; and learn how to design and implement a program to produce […]

Example of soil carbon difference between two samples

Understanding Soil Carbon Dynamics

Carbon is an often overlooked, but very important com­ponent of the soil. We know how to manage nitrogen, phos­phorus and potassium for maximum production, and that micronutrients play a critical role in crop yield and disease resistance. Deficiencies can usually be corrected relatively quickly through the addition of soil or foliar fertilizer ap­plications. While soil […]

Corn leaves

Setting the Table to Optimize Fertilizers, Soil Amendments

It is a big mistake to consider that just adding enough fertilizer to grow the crop is what determines soil fertility.

Front cover of the book Eco-Farm

Book excerpt: Eco-Farm by Charles Walters – The Soil-Life Connection

Acres U.S.A. founder Charles Walters wrote Eco-Farm: An Acres U.S.A. Primer to be the definitive guide to eco-farming. That includes managing farm and ranch soil fertility, crops, fertilizers, weeds, insects and more while avoiding dangerous chemicals. The excerpt below discusses the importance of maintaining the microorganisms and other lifeforms within the soil by understanding and […]