COVER CROP. Sponsored by: In partnership with:

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1 Nebraska COVER CROP Tuesday, Feb. 14, 2017 CONFERENCE at the Eastern Nebraska Research and Extension Center (located at the University s Agricultural Research and Development Center near Mead, Nebraska) The attached information was presented at the 2017 Nebraska Cover Crop Conference. Materials in this communication may be subject to copyright. Please contact the presenter/author of the materials for more information or for permission to reprint or reproduce content. Sponsored by: In partnership with: University of Nebraska Lincoln Institute of Agriculture and Natural Resources Extension is a Division of the Institute of Agriculture and Natural Resources at the University of Nebraska Lincoln cooperating with the Counties and the United States Department of Agriculture. University of Nebraska Lincoln Extension educational programs abide with the nondiscrimination policies of the University of Nebraska Lincoln and the United States Department of Agriculture.

2 Cover Crops: Residue, Nutrients, & Soil Biology Paul J. Jasa Extension Engineer University of Nebraska Cover crops and their benefits Erosion Control Nutrient Capture/Cycling Improve Soil Health Water Management Increase Biodiversity Balance C:N Ratio Nitrogen Fixation Reduce Compaction Weed Supression Provide Forage/Grazing? No-till Training and Education 1

3 Missouri River Bottoms Flooded 2011 Cover crops to stimulate soil life and provide residue Corn 2012 No Cover 75# Oats 40# Oats 40# Peas bu/a bu/a bu/a John Wilson, Extension Educator, Burt County No-till Training and Education 2

4 Increase biological diversity Put wheat in the rotation Put forages in the rotation Use cover crops No-till Training and Education 3

5 Yield, bu/a Yield, bu/a 120 Nitrogen Rate Response Curve Nitrogen Rate, lbs/a 120 Cover Crop Treatments Nitrogen Rate, lbs/a No-till Training and Education 4

6 Cover Crop Yield, bu/a Cereal rye Chickling vetch Austrian winter peas 99.4 N Cocktail 93.1 Subterranean clover 91.2 Hairy vetch 89.7 Cowpeas 88.1 Soybeans 87.4 Crimson clover 86.3 No-till Training and Education 5

7 Yield, bu/a Yield, bu/a 300 Nitrogen Rate Response Curve Nitrogen Rate, lbs/a 300 Cover Crop Treatments Nitrogen Rate, lbs/a No-till Training and Education 6

8 Cover Crop Yield, bu/a Chickling vetch Soybeans Hairy vetch N Cocktail Cowpeas Austrian winter peas Cereal rye Sunn Hemp N Cocktail no N No-till Training and Education 7

9 No-till Training and Education 8

10 No-till Training and Education 9

11 No-till Training and Education 10

12 2008 dryland corn Wheat stubble 166 Milo cover crop 175 Beans cover crop 179 Corn Yields, bu/a None Carbon Nitrogen Rogers Memorial Farm No-till Training and Education 11

13 Corn Yields, bu/a None Carbon Nitrogen Rogers Memorial Farm No-till Training and Education 12

14 No-till Training and Education 13

15 No-till Training and Education 14

16 No-till Training and Education 15

17 No-till Training and Education 16

18 Flown on cover crop at time of seed corn male row destruction No-till Training and Education 17

19 Flown on cover crop already growing and protecting a sandy hillside at harvest time Use cover crops after low residue crops Use cover crops after corn silage or wheat Use cover crops on soils receiving more water than can be stored in the profile No-till Training and Education 18

20 CROPWATCH.UNL.EDU No-till Training and Education 19