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Full-Text Articles in Life Sciences
Feasibility Exploration: "Perfectly" Integrated Crop-Livestock Production, Donald Taylor, Diane H. Rickerl
Feasibility Exploration: "Perfectly" Integrated Crop-Livestock Production, Donald Taylor, Diane H. Rickerl
Economics Research Reports
In this research report, the following question is examined. Can individual integrated crop and cow-calf operations be simultaneously "balanced" from the standpoints of (1) amounts of manure produced "matching" (plus or minus 10%) the soil fertility needs of producers' cropland and rangeland and (2) amounts of feedgrains and roughages produced matching (plus or minus 10%) the nutrient needs of producers' livestock? Answers to the question were sought through examination of livestock manure production and utilization and livestock feedstuff production and consumption on eight South Dakota integrated crop-livestock case farms.
Farmland Manure Nutrient Loadings: South Dakota Feedlots And Cow-Calf Operations, Donlad Taylor, Gail L. Gullickson
Farmland Manure Nutrient Loadings: South Dakota Feedlots And Cow-Calf Operations, Donlad Taylor, Gail L. Gullickson
Economics Research Reports
The estimated annual value of the manure produced by livestock and poultry in the U.S. as fertilizer for farmland is around $2.5 billion. The corresponding value for manure produced in South Dakota is $172 million, which is about 5% of total cash receipts from marketings and government payments to farmers and ranchers in the state in 1992 (Taylor, 1994, p 32). These estimated manure values represent the commercial market value of the elemental nitrogen (N), phosphorus (P), and potassium (K) contained in the manure produced by livestock, as a replacement for synthetic chemical fertilizers that otherwise would be purchased and …