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The Compost Manufacturer’s Manual

Fifty years before the soil foodweb became in the 1990s, Pfeiffer was using microscopes, preparing microbial inoculants, making superior quality composts, teaching farmers how to employ biological farming practices to improve soil organic matter, soil structure, and soil fertility – which in modern times is known as “soil health” -- and conducting cutting edge research on soil fertility, soil biology, soil humus, and food quality. 
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Liquid Fertilizers and Aerated Compost Tea

Liquid fertilizers create a huge boost, especially when added to already fertile balanced soil. I urge every gardener to try fertigating a few plants and see what it does. A very small quantity of fertilizer applied to leaves has as much (or more) result than many times more of that same fertilizer put into the soil. One foliar feed can produce a dramatic increase in growth and plant health. But if the soil is seriously out of balance/deficient, the result will not be so good.
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Available calcium a factor in salt balance for vegetable crops

Observations made on vegetable farms in New Jersey located on sandy soils, show that pH is not always a reliable indicator of the available calcium and that many of those sandy soils which have pH values of 6.0 to 6.6, where large applications of soda and potash have been made, may be very deficient in calcium and magnesium.
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Let’s Live! 1952

They include: Soil Treatment and Wool Output; Diseases As Deficiencies Via the Soil; How Smart is a Cow? Quality vs. Quantity Crops; "Deep Rooting" Depends on Soil; Soil Fertility and Nutritive Food Values; Soil and Proteins; Our Teeth and Our Soils; Mineral Hunger; Soil Acidity is Beneficial; Too Much Nitrogen? Protein Deficiencies. . . through Soil Deficiencies.
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Let’s Live! 1957

They include: Rhododendrons . . . a Problem of Soil Fertility, Not Acidity; Is Soil Fertility via Food Quality Reported in Your Varied Pulse Rate?; Breeding Out Plant Proteins--Bringing in Diseases; Cycles of Soil Changes In White Clover Years; Cycles of Soil Changes in White Clover Years; Fertilizing with Nitrogen: The Cow Makes Her Suggestions; Fertilizing with Nitrogen: Rabbits Testify by Experiments; Fertilizing with Nitrogen: We May Use Too Much Salt; Fertilizing with Nitrogen: Fertility Imbalance and Insect Damage; Too Much Salt for the Soil; Blood Will Tell; What Texture of Soil is Preferred?
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Let’s Live! 1960

They include: Different Soils, Different Plant Compositions (Bacteria Help Legume Roots Mobilize Fertility); Different Soils, Different Plant Compositions (Microbes Give Legumes Their Protein Power); Different Soils, Different Plant Compositions (Fertility Effects Show Early in Plants); Different Soils. . . (Big Yields of Bulk-Low Phosphorus Concentration); Different Soils. . . (Boron Interrelated with Potassium); Different Soils. . . (Boron Helps Maintain Potassium Balance); Different Soils. . . (Soil Exhaustion--Variable Organic and Inorganic Composition of Plants); Different Soils. . . (Sulfur Deficiency in Soils); Different Soils. . . (Chemical Composition of Plants and the "Feeding Power" of Their Roots); Different Soils. . . (Chemical Composition of Plants and the "Feeding Power" of Their Roots) part 2; Different Soils. . . (Vegetable Quality Reveals its Connection with Soil Organic Matter); Different Soils.. . ("Chelation")--Nature's Emphasis on Soil Organic Matter.
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Let’s Live! 1962

They include: A Few Facts About Soils; "Agricultural Education"; "The Natural" vs. "The Artificial"; Salt Damage to Seedlings; Salt Damage to Seedlings; Purpose of Liming Soil an Enigma; Immunity Against Leaf-Eating Insects via Soil as Nutrition; Immunity Against Leaf-Eating Insects via Soil as Nutrition; Garden Soils and Bio-geochemistry; Bio-Assays Rather than Chemical Analyses; Their Questions--My Answers; Less Soil Organic Matter Spells Lower Form of Vegetation.
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Soil Fertility and Animal Health

One of the most important agriculture-health books ever written. Albrecht published many articles in magazines and journals, but this is the only actual book Albrecht wrote and was his effort to encapsulate his whole message between two covers.
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