{"id":854,"date":"2015-03-02T16:44:31","date_gmt":"2015-03-02T21:44:31","guid":{"rendered":"http:\/\/site.extension.uga.edu\/brooksag\/?p=854"},"modified":"2015-03-02T16:44:31","modified_gmt":"2015-03-02T21:44:31","slug":"early-season-corn-management","status":"publish","type":"post","link":"https:\/\/site.extension.uga.edu\/brooksag\/2015\/03\/early-season-corn-management\/","title":{"rendered":"Early Season Corn Management"},"content":{"rendered":"<p><strong>Planting Date<\/strong><\/p>\n<p>Soil temperature in the seed zone should be <strong>55\u00b0F or greater <\/strong>before planting. Corn seed will sprout slowly at 55\u00b0F while germination is prompt at 60\u00b0F. Delay planting if cold weather drops soil temperatures below 55\u00b0F at the two-inch level. However, if soil temperatures are 55\u00b0F and higher, and projections are for a warming trend, corn planting should proceed.<\/p>\n<p>Early planted corn <strong>out-yields <\/strong>late planted corn. Usually, as long as the growing point is below ground level, corn can withstand a severe frost or freezing damage without yield reduction. It is best therefore to monitor soil conditions and weather if your desire is to plant as early as possible.<\/p>\n<p><strong>Use of GDDs<\/strong><\/p>\n<p>Many management decisions for corn depend on the growth stage and development. The growth stages are controlled by the amount of <strong>Growing Degree Days (GDD)<\/strong> the corn plant receives. GDDs are a useful tool to gauge the\u00a0development of\u00a0your corn and provides insight into whether stress is occurring. Under optimum conditions a corn plant will progress to a given stage\u00a0in a certain amt of GDDs. When plant progression <strong>does not line up<\/strong> then we know that the corn plants were <strong>stressed<\/strong> in some way.<\/p>\n<p>GDDs are easy to determine just check your local weather station (ours is <a title=\"Dixie, GA\" href=\"https:\/\/weather.uga.edu\/aemn\/cgi-bin\/AEMN.pl?site=GADX\">Dixie<\/a>, GA) and look for Degree Day Calculator. Enter the date of<strong> crop emergence<\/strong> and the current date.<\/p>\n<p>Here are a few slides from Dewey Lee showing the effect of GDDs:<\/p>\n<p><a class=\"imageLB cboxElement\" href=\"https:\/\/site.extension.uga.edu\/mitchellag\/files\/2015\/03\/2015-Georgia-County-Program_Page_04.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-766\" src=\"https:\/\/site.extension.uga.edu\/mitchellag\/files\/2015\/03\/2015-Georgia-County-Program_Page_04.jpg\" alt=\"2015 Georgia County Program_Page_04\" width=\"1024\" height=\"768\" \/><\/a><\/p>\n<p><a class=\"imageLB cboxElement\" href=\"https:\/\/site.extension.uga.edu\/mitchellag\/files\/2015\/03\/2015-Georgia-County-Program_Page_05.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-765\" src=\"https:\/\/site.extension.uga.edu\/mitchellag\/files\/2015\/03\/2015-Georgia-County-Program_Page_05.jpg\" alt=\"2015 Georgia County Program_Page_05\" width=\"1024\" height=\"768\" \/><\/a><\/p>\n<p><a class=\"imageLB cboxElement\" href=\"https:\/\/site.extension.uga.edu\/mitchellag\/files\/2015\/03\/2015-Georgia-County-Program_Page_07.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-764\" src=\"https:\/\/site.extension.uga.edu\/mitchellag\/files\/2015\/03\/2015-Georgia-County-Program_Page_07.jpg\" alt=\"2015 Georgia County Program_Page_07\" width=\"1024\" height=\"768\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Planting Date Soil temperature in the seed zone should be 55\u00b0F or greater before planting. Corn seed will sprout slowly at 55\u00b0F while germination is prompt at 60\u00b0F. Delay planting if cold weather drops soil temperatures below 55\u00b0F at the two-inch level. However, if soil temperatures are 55\u00b0F and higher, and projections are for a [&hellip;]<\/p>\n","protected":false},"author":61,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-854","post","type-post","status-publish","format-standard","hentry","category-corn"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/brooksag\/wp-json\/wp\/v2\/posts\/854","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/site.extension.uga.edu\/brooksag\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/site.extension.uga.edu\/brooksag\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/brooksag\/wp-json\/wp\/v2\/users\/61"}],"replies":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/brooksag\/wp-json\/wp\/v2\/comments?post=854"}],"version-history":[{"count":2,"href":"https:\/\/site.extension.uga.edu\/brooksag\/wp-json\/wp\/v2\/posts\/854\/revisions"}],"predecessor-version":[{"id":856,"href":"https:\/\/site.extension.uga.edu\/brooksag\/wp-json\/wp\/v2\/posts\/854\/revisions\/856"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/brooksag\/wp-json\/wp\/v2\/media?parent=854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/brooksag\/wp-json\/wp\/v2\/categories?post=854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/brooksag\/wp-json\/wp\/v2\/tags?post=854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}