{"id":71552,"date":"2017-02-11T00:52:41","date_gmt":"2017-02-11T07:52:41","guid":{"rendered":"https:\/\/dh.durangoherald.com\/tj\/four-corners-cover-crop-study-shows-mixed-results-first-year\/"},"modified":"2017-02-11T07:52:41","modified_gmt":"2017-02-11T07:52:41","slug":"four-corners-cover-crop-study-shows-mixed-results-first-year","status":"publish","type":"post","link":"https:\/\/dh.durangoherald.com\/tj\/four-corners-cover-crop-study-shows-mixed-results-first-year\/","title":{"rendered":"Four Corners cover crop study shows mixed results first year"},"content":{"rendered":"\n

\"Abdel
Abdel Berrada, a researcher with the Southwest Colorado Research Station, reports on the findings of the cover crop study at a Dove Creek workshop on Thursday.<\/span>Stephanie Alderton\/The Journal<\/span><\/figcaption><\/figure>\n<\/p>

Results are in from the first year of the Southwestern Colorado Research Center\u2019s study on cover crops, but they\u2019re less than encouraging to dryland farmers.<\/p>\n

In 2015, the research center, which is an extension of Colorado State University, received a grant from the U.S. Department of Agriculture to study the effect of cover crops on soil health for dryland, no-till farmers. At a soil health workshop in Dove Creek on Thursday, researcher Abdel Berrada reported that results are mixed so far. He said the research center hopes to spend a few more years on the study in order to come to a firm conclusion, but that depends on the uncertain fate of federal grants.<\/p>\n

Cover crops are often touted as a way to improve productivity for dryland and no-till farmers. Many scientists believe that planting certain cover crops between cash crop harvests, instead of letting the fields lie fallow, adds nutrients to the soil and helps it retain moisture. Five farmers in Southwest Colorado and Southeast Utah planted cover crops in test fields in 2015 as part of a planned three-year study to see whether that theory would work in the dry, high-altitude conditions of the Four Corners.<\/p>\n

Berrada said that after the first year, which included two growing seasons for most farmers, some of the fields with cover crops showed slightly healthier soil, but others showed the reverse. Soil with cover crops generally had more biomass and nitrogen content than fallow soil, as expected, but in some fields it had less \u2013 and the change wasn\u2019t always very significant. It was the same with moisture levels. Berrada noted that conditions varied wildly even among the five test farms in the project, and many different factors can affect soil health \u2013 such as rainfall, weeds and whether or not the farmer has grazing animals. One thing early results do seem to show is that cover crops are more effective when they\u2019re planted in the fall, and certain species of crops are more effective than others.<\/p>\n

\u201cI\u2019d say probably around August \u2026 get rid of as many weeds as you can, and then plant the cover crops,\u201d he said. \u201cYou also want species that grow in winter.\u201d<\/p>\n

Each field in the study used a different mix of cover crops. Some of the species planted included spring peas, oats, barley and safflower\u2013plants designed to put nutrients into the soil as well as taking them out. But so far, the farmers in the study aren\u2019t convinced the method will pay off. Blaine Nebeker, owner of Crowley Farms in Utah, said that when he planted cover crops in fall 2015, they didn\u2019t grow very well, and they cost him twice as much to plant as his cash crop, winter wheat.<\/p>\n

\u201cWhen we went out to look at it, it was like, \u2018Did you plant anything here?\u2019\u201d he said. \u201cBut we planted organic safflower last year, and I\u2019d say we had a better than average safflower crop this year. But as far as yield, I didn\u2019t see a huge difference where the cover crop was versus where it wasn\u2019t.\u201d<\/p>\n

Fortunately for the test farmers, the USDA grant allows the research center to reimburse them for the cost of all cover crops. But that grant money will only last until spring of 2018, and Berrada said it\u2019s not certain the project will be funded after that. That\u2019s bad news for his research.<\/p>\n

\u201cWe need a minimum of five years to really see concrete results,\u201d he said.<\/p>\n

The research center is in the process of applying for another grant, but they won\u2019t know until spring whether the money will come through. For now, another growing season is in progress for the test fields, and Berrada hopes to find some definite trends in cover crop effectiveness by next year.<\/p>\n","protected":false},"excerpt":{"rendered":"

Corners dryland farmers find mixed results<\/p>\n","protected":false},"author":1,"featured_media":71553,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[1737,281,13],"naviga_topic":[],"class_list":["post-71552","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","tag-agricultural-research-and-technology","tag-agriculture","tag-frontpage-lead"],"acf":[],"author_name":"dh_admin","_links":{"self":[{"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/posts\/71552","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/comments?post=71552"}],"version-history":[{"count":0,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/posts\/71552\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/media\/71553"}],"wp:attachment":[{"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/media?parent=71552"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/categories?post=71552"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/tags?post=71552"},{"taxonomy":"naviga_topic","embeddable":true,"href":"https:\/\/dh.durangoherald.com\/tj\/wp-json\/wp\/v2\/naviga_topic?post=71552"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}