Soils and Nutrient Management Chapter 16. Nutrient Management A. Background B. Nutrient Need C. Nutrient Sources D. Composition of Organic Sources E.

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Presentation transcript:

Soils and Nutrient Management Chapter 16

Nutrient Management A. Background B. Nutrient Need C. Nutrient Sources D. Composition of Organic Sources E. Nutrient Cycling F. Goals of Nutrient Management G. Examples of Best Management Strategies H. Calculating Available Nutrients

Nutrient Management A. Background B. Nutrient Need C. Nutrient Sources D. Composition of Organic Sources E. Nutrient Cycling F. Goals of Nutrient Management G. Examples of Best Management Strategies H. Calculating Available Nutrients

Nutrient Management A. Background B. Nutrient Need C. Nutrient Sources D. Composition of Organic Sources E. Nutrient Cycling F. Goals of Nutrient Management G. Examples of Best Management Strategies H. Calculating Available Nutrients

Singer and Munns, 2006 Soils: An Introduction, 6 th ed. A) Alfalfa with K deficiency A B) Onions on right have Zn deficiency B B. Nutrient Need

Nutrient Management A. Background B. Nutrient Need C. Nutrient Sources 1. Soil 2. Inorganic fertilizers 3. Organic fertilizers D. Composition of Organic Sources E. Nutrient Cycling F. Goals of Nutrient Management G. Examples of Best Management Strategies H. Calculating Available Nutrients

1. Soil 3. Organic Fertilizer Compost Biosolids 2. Inorganic Fertilizer Manure

Nutrient Management A. Background B. Nutrient Need C. Nutrient Sources D. Composition of Organic Sources E. Nutrient Cycling F. Goals of Nutrient Management G. Examples of Best Management Strategies H. Calculating Available Nutrients

D. Composition of Organic Sources Nutrient and Pest Management Program, UW Extension Publication A3580: Livestock --Nitrogen (N)-- PhosphatePotash SurfaceIncorpor-ated (P 2 O 5 ) (K 2 O) ---Solid Manure lbs/ton--- Dairy3437 Beef3559 Swine7967 Chicken Note: Manure supplies approximately equal amounts of N and P.

Nutrient Management A. Background B. Nutrient Need C. Nutrient Sources D. Composition of Organic Sources E. Nutrient Cycling F. Goals of Nutrient Management G. Examples of Best Management Strategies H. Calculating Available Nutrients

Nutrient Management A. Background B. Nutrient Need C. Nutrient Sources D. Composition of Organic Sources E. Nutrient Cycling F. Goals of Nutrient Management 1. Cost effective production 2. Conservation of resources 3. Maintenance of soil quality 4. Protection of environment beyond soil G. Examples of Best Management Strategies H. Calculating Available Nutrients

Nutrient Management A. Background B. Nutrient Need C. Nutrient Sources D. Composition of Organic Sources E. Nutrient Cycling F. Goals of Nutrient Management G. Examples of Best Management Strategies 1. Buffer strips 2. Cover crops 3. Conservation tillage 4. P-based NM 5. Timing of applications 6. BALANCE: INPUTS=EXPORTS 7. Soil Testing H. Calculating Available Nutrients

Nutrient Management A. Background B. Nutrient Need C. Nutrient Sources D. Composition of Organic Sources E. Nutrient Cycling F. Goals of Nutrient Management G. Examples of Best Management Strategies H. Calculating Available Nutrients