The rates used for this experiment are very high and were selected with the idea to verify the long-term effect of manure disposal as opposed to valorization and optimization. In this experiment, the runoff represented less than 1% and the subsurface drainage 25% of the annual water input. The application rates of 325, 650 and 1300 kg N\/ha – year represent 1 time, 2 and 4 times the recommended application rate for Coastal bermudagrass. Both the medium and the high rates resulted in nitrate concentration in the water higher than the recommended level of 10 mg\/L. P accumulation in the soil resulted from the N application at N recommended rate. Considering N as the element to set the application rate, P recommended rate was exceeded by 3 times. P was fixed by the soil, however by the fifth year of the experiment, higher P concentrations were measured in the runoff. Even if many years are necessary before seeing P leaching, P should be considered to determine the application rates as well as N.<\/p>\n","protected":false},"excerpt":{"rendered":"
The rates used for this experiment are very high and were selected with the idea to verify the long-term effect of manure disposal as opposed to valorization and optimization. In this experiment, the runoff represented less than 1% and the subsurface drainage 25% of the annual water input. The application rates of 325, 650 and […]<\/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":[8882,13816,21067,20007,355,360,169,361,362,496,187,363,188,16262,95,297,298,9910,35,20911,69,446],"class_list":["post-1792","post","type-post","status-publish","format-standard","hentry","category-environment","tag-al","tag-ass","tag-drainage-water-quality-from-land-application-of-swine-lagoon-effluent","tag-gh","tag-lagoon","tag-leaching","tag-manure","tag-manure-spreading","tag-n","tag-nitrate","tag-nitrogen","tag-p","tag-phosphorus","tag-pl","tag-quality","tag-soil","tag-soils","tag-subsurface-drainage-water-quality-from-land-application-of-swine-lagoon-effluent","tag-swine","tag-t","tag-water","tag-water-quality"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/1792","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=1792"}],"version-history":[{"count":0,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/1792\/revisions"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=1792"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=1792"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=1792"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}