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Improving Swine Waste Fertilizer
July 09, 2008Swine production generates large amounts of waste. While this waste contains nutrients that may serve as fertilizer when applied to agricultural fields, the ratio of nutrients in the waste is different than what a crop requires. Application of waste to meet the nitrogen needs of a crop results in application of excess phosphorus which increases the potential for environmental contamination. Swine fed corn diets with more highly available phosphorus produce waste that has a nitrogen to phosphorus ratio closer to what a crop needs than swine fed traditional corn diets.
The use of swine waste for fertilizer has double benefits for the environment. Using swine waste reduces the need for chemical fertilizers for crops and at the same time reduces the amount of waste to be disposed of from swine production. But, when the nutrients in the swine waste don't match the needs of the crops, the excess nutrients not used by the crops can pollute the soil.
Scientists with USDA-ARS and the University of Nebraska - Lincoln compared nitrogen and phosphorus availability in field plots receiving inorganic fertilizer, manure from swine fed traditional corn diets, or manure from swine fed low phytate corn diets. Results from the study were published in the Soil Science Society of America Journal. Researchers found that field application of slurry from low-phytate corn diets at rates needed to meet the nitrogen needs of the crop results in slower accumulation of phosphorus in these soils.
The Soil Science Society of America (SSSA)
The Soil Science Society of America (SSSA)
More Swine Waste Current Events and Swine Waste News Articles
![Lactic acid fermentation of food waste for swine feed [An article from: Bioresource Technology]](http://ecx.images-amazon.com/images/I/512SA5QAAFL._SL160_.jpg) |
Lactic acid fermentation of food waste for swine feed [An article from: Bioresource Technology] by S.Y. Yang (Author), K.S. Ji (Author), Y.H. Baik (Author), W.S. Kwak (Author), McCaskey (Author) This digital document is a journal article from Bioresource Technology, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser. Description: This study was conducted to determine the effects of lactic acid bacteria (LAB, Lactobacillus salivarius) inoculation on the microbial, physical and chemical properties of food waste mixture (FWM) stored at ambient temperature (25^oC) for 10 and 30 days. A complete pig diet including restaurant food waste, bakery by-product, barley and wheat bran, and broiler poultry litter was amended with LAB at the levels of 0.1%, 0.2%, 0.5% and 1.0% and fermented anaerobically. These treatments were compared with intact FWM... |
![Use of natural zeolite at different doses and dosage procedures in batch and continuous anaerobic digestion of synthetic and swine wastes [An article from: Resources, Conservation & Recycling]](http://ecx.images-amazon.com/images/I/515MRXGED0L._SL160_.jpg) |
Use of natural zeolite at different doses and dosage procedures in batch and continuous anaerobic digestion of synthetic and swine wastes [An article from: Resources, Conservation & Recycling] by S. Montalvo (Author), L. Guerrero (Author), R. Borja (Author), L. Travieso (Author), S (Author) This digital document is a journal article from Resources, Conservation & Recycling, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser. Description: The aim of the present work was to study the behavior of conventional digesters working while adding natural zeolite to the anaerobic treatment of swine wastes. High nitrogen concentrations (3g/l) were also applied when synthetic media was used as feed in anaerobic reactors operating in batch mode. Three sets of experiments were carried out. The first experiment was carried out in batch mode, in order to find the most appropriate zeolite doses for the digester operation. One gram per litre of... |
![Comparative survival of conidia of eight species of Bipolaris, Curvularia, and Exserohilum in soil and influences of swine waste amendments on survival [An article from: Applied Soil Ecology]](http://ecx.images-amazon.com/images/I/51QW64A11FL._SL160_.jpg) |
Comparative survival of conidia of eight species of Bipolaris, Curvularia, and Exserohilum in soil and influences of swine waste amendments on survival [An article from: Applied Soil Ecology] by R.G. Pratt (Author) This digital document is a journal article from Applied Soil Ecology, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser. Description: Survival of conidia of eight species of Bipolaris, Curvularia, and Exserohilum in soil was compared to identify the species most suitable for use in experiments to assay fungitoxicity of soils amended with animal wastes and agricultural byproducts. Conidia produced on cellulose-containing substrates were added to soil between porous nylon mesh membranes, incubated for 0-12 weeks, retrieved, and plated on cornmeal agar to induce germination as an indicator of viability. In three experiments, significant variation in... |
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Dewatering of phosphorus extracted from liquid swine waste [An article from: Bioresource Technology] by A.A. Szogi (Author), M.B. Vanotti (Author), P.G. Hunt (Author) This digital document is a journal article from Bioresource Technology, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser. Description: Phosphorus (P) recovery from liquid swine manure is an attractive technology when on-farm application of liquid swine manure is not an option. We developed a technology that enables separation of this P, but its high moisture content makes transportation difficult. In this work, we investigated dewatering procedures to concentrate the P product. Sludge rich in calcium phosphate (>20% P"2O"5) was obtained using a field prototype, and it was further dewatered using a combination of polymer treatment and filter bags.... |
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Characteristics and soil treatment of biologically treated swine waste: Project completion report (Contribution - Kansas Water Resources Research Institute ; no. 132) by Carl E Burkhead (Author) | |
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Composting of high moisture content swine manure with corncob in a [An article from: Bioresource Technology] by N. Zhu (Author) This digital document is a journal article from Bioresource Technology, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser. Description: Pilot composting experiments of swine manure with corncob were conducted to evaluate the performance of the aerated static bin composting system. Effects of temperature control (60 and 70^oC) and moisture content (70% and 80%) were monitored on the composting by measuring physical and chemical indexes. The results showed that (1) the composting system could destroy pathogens, converted nitrogen from unstable ammonia to stable organic forms, and reduced the volume of waste; (2) significant difference of NH"4^+-N... |
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Effect of low initial C/N ratio on aerobic composting of swine manure with rice straw [An article from: Bioresource Technology] by N. Zhu (Author) This digital document is a journal article from Bioresource Technology, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser. Description: Two pilot composting experiments were conducted to investigate the effect of low initial C/N ratio on the composting of swine manure with rice straw by measuring physical and chemical parameters. The results showed that the thermophilic duration of bin 1 and bin 2 was long enough to satisfy the sanitary standard, and swine manure could reach maturity. Bin 1 containing larger amount of swine manure and less amount of rice straw showed a higher nitrogen loss (8%), shorter thermophilic phase, and longer maturity... |
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Emissions of ammonia, hydrogen sulfide, and odor before, during, and after slurry removal from a deep-pit swine finisher.: An article from: Journal of the Air & Waste Management Association by Steven J. Hoff (Author), Dwaine S. Bundy (Author), Minda A. Nelson (Author), Brian C. Zelle (Author), Larry D. Jacobson (Author), Albert J. Heber (Author), Jinqin Ni (Author), Yuanhui Zhang (Author), Jacek A. Koziel (Author), David B. Beasley (Author) This digital document is an article from Journal of the Air & Waste Management Association, published by Thomson Gale on May 1, 2006. The length of the article is 7429 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser. Citation Details Title: Emissions of ammonia, hydrogen sulfide, and odor before, during, and after slurry removal from a deep-pit swine finisher. Author: Steven J. Hoff Publication: Journal of the Air & Waste Management Association (Magazine/Journal) Date: May 1, 2006 Publisher: Thomson Gale Volume: 56 Issue: 5 Page: 581(10) Distributed by Thomson... | |
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Conservation Now.(swine waste): An article from: Farm Journal by Darrell Smith (Author) This digital document is an article from Farm Journal, published by Thomson Gale on September 2, 2005. The length of the article is 664 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser. Citation Details Title: Conservation Now.(swine waste) Author: Darrell Smith Publication: Farm Journal (Magazine/Journal) Date: September 2, 2005 Publisher: Thomson Gale Page: NA Distributed by Thomson Gale | |
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Automated treatment and recycle of swine feedlot wastewaters (Environmental protection technology series) by E. Paul Taiganides (Author) |
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