Many people think of swine mnaure as a waste, however the western Canadian experience has shown it to be a valuable source of plant nutreints when properly applied. Certain issues surrounding swine manure as a plant source still need to be examined. First, swine manure provides valuable plant nutrients but they are in a form of low nutrient content by weight. Concentrations of nutrient per unit volume are low when compared to commercial fertilizers, and nutrient concentrations may not be in the appropriate balance as per fertilizer recommendations. Second, variability of composition and nutrient content of swine manure. Nutrient levels are dependant on storage time, handling, agitation and feed rations, with much of the variability relating to the total solifds content. Third, not all nutrients in swine manure are immediately plant available. Estimates between 20-50% of the nitrogen available in swine manure is available in the organic form. The rate at which this organic form breaks down is dependant on temperature, mositure and soil type, therefore making it difficult to estimate the amount of plant available nutrients in a given year. Fourth, adjust the rates of swine manure application to meet nutrient requirements. Quite often nitrogen is the most limiting nutrient in soils that have never had a manure application. Initially application rates can be based on nitrogen, however long term application of manure will increase other nutrient sources (phosphorus). This can result in a nutrient overload if not properly managed, yearly measurements of soil electrical conductivity and sodium absoption ratio will help to determine any potential problems arising. Fifth is the timing and method of swine manure application. Injection of swine manure not only limits odours and prevents surface runoff, it reduces volatile ammonia loss relative to surface application. Late fall application of manure will result in less nitrogen loss resulting from the soils inabaility to warm up enough and stimulate microbial conversion of ammonium to nitrate which is then susceptible to leaching or denitrification losses. Swine manure can be used as a value source of fertilizer if managed properly. Emphasis needs to be placed on managing manure similar to other fertilizers: using fertilizer nutrient content and soil test \/ fertilizer recommendation information in order to calclulate rates of application that match the crops abaility to use nutrients applied and produce economic yield responses.<\/p>\n","protected":false},"excerpt":{"rendered":"
Many people think of swine mnaure as a waste, however the western Canadian experience has shown it to be a valuable source of plant nutreints when properly applied. Certain issues surrounding swine manure as a plant source still need to be examined. First, swine manure provides valuable plant nutrients but they are in a form […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[8882,229,3965,2235,809,12670,25122,6904,46,20007,112,6492,169,1940,496,813,187,521,1018,200,1941,13564,16262,17743,14846,309,35,569,20911,99,1579,18011,6053,2446,766,1301,2285,1942],"class_list":["post-1483","post","type-post","status-publish","format-standard","hentry","category-environment","tag-al","tag-ammonia","tag-content","tag-conversion","tag-denitrification","tag-down","tag-eet","tag-fee","tag-feed","tag-gh","tag-handling","tag-help","tag-manure","tag-nitogren","tag-nitrate","tag-nitrification","tag-nitrogen","tag-nutrient","tag-nutrient-balance","tag-odour","tag-organic-nitrogen","tag-people","tag-pl","tag-prod","tag-sodium","tag-storage","tag-swine","tag-swine-manure","tag-t","tag-temperature","tag-test","tag-tot","tag-use","tag-variability","tag-waste","tag-weight","tag-yield","tag-yield-response"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/1483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/comments?post=1483"}],"version-history":[{"count":0,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/1483\/revisions"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=1483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=1483"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=1483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}