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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.

A model of a tank fertilizer system.

Organic Fertilizers for Horticulture

Natural products such as these generally do not have high N-P-K num­bers, but offer a wealth of readily available nutrients to plants in a living soil.

organic manure added to a field

Adding Organic Manure to Your Crops

Manures are an excellent source of nitrogen.

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A farmer liming his fields after harvest.

Lime Restocks the Soil

When limestone is put on the soil, it accepts acidity from the clay, just as other minerals do in the rock weathering processes.

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 […]