Manure application in minimum till (MT) systems is a challenge worthy of attention because residue cover is a keystone for\u00a0environmental protection. To develop a system combining zone tillage and manure application into one operation (zonejection),\u00a0two experiments were conducted. In Exp. 1, liquid swine manure (LSM) was applied in fall or spring for two site years (A, B). In\u00a0Exp. 2, LSM was zone-applied either all preplant (PP) or split between preplant and sidedress (SP) for three site years (C, D, E).\u00a0In both experiments, dietrich (DMI), vibro shank (VS), or subsurface deposition (SSD) applied the LSM, corn (Zea mays L.) was\u00a0seeded in the manured zone, and NO3\u2013N movement was monitored. Nutrients were supplied by inorganic fertilizer (IF) in control\u00a0treatments under conventional till (CT), no till (NT), and zone till (ZT). With fall-applied LSM, aft er a mild winter, more N\u00a0was lost from the soil\u2013plant system (i.e., 35 kg ha\u22121 soil NO3\u2013N) than aft er a cold winter with snow cover (18 kg ha\u22121), and corn\u00a0grain yield was reduced (by 1.2 Mg ha\u22121), even though supplemental fertilizer N was sidedressed. In Exp. 2, with LSM zoned all\u00a0PP or SP, grain yield and N use effi ciency were comparable to that with IF, except when double the crop N requirement was zoned\u00a0all PP (Site D). Planting into a zone of concentrated LSM (3.4 S m\u22121) reduced grain yield when the LSM was injected by VS. With\u00a0careful management, zonejection allows efficient utilization of manure nutrients while preserving residue cover.<\/p>\n","protected":false},"excerpt":{"rendered":"
Manure application in minimum till (MT) systems is a challenge worthy of attention because residue cover is a keystone for\u00a0environmental protection. To develop a system combining zone tillage and manure application into one operation (zonejection),\u00a0two experiments were conducted. In Exp. 1, liquid swine manure (LSM) was applied in fall or spring for two site years […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19,930],"tags":[25681,25676,25550,46,2771,4590,26482,25672,25686,25577,25582,25614,23609,35,25539,25688,25536],"class_list":["post-14798","post","type-post","status-publish","format-standard","hentry","category-pork-insight-articles","category-production","tag-cosvol","tag-creep-feeder-panels","tag-creeps-faeces","tag-feed","tag-iron","tag-large-group-housing","tag-manure-nutrient","tag-mix-your-own-pig-feed","tag-pig-birthing-pens","tag-pig-feed-nutritional-information","tag-power-washing-hog-barns","tag-small-breeding-and-gestation-barns-for-hogs","tag-spring","tag-swine","tag-vagus-nerve-gut-brain","tag-when-we-are-in-pain-relationship-grows-stronger","tag-zonejection-conservation-tillage-manure-nutrient-delivery-system"],"_links":{"self":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/14798","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=14798"}],"version-history":[{"count":4,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/14798\/revisions"}],"predecessor-version":[{"id":14803,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/posts\/14798\/revisions\/14803"}],"wp:attachment":[{"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/media?parent=14798"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/categories?post=14798"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/prairieswine.com\/rsc\/wp-json\/wp\/v2\/tags?post=14798"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}