Total precipitation is the amount of rainfall that fell from when the cover crop was planted, until the cover crop biomass was harvested.

Growing degree units are the amount of heat the cover crop received from the when the cover crop was planted to when the cover crop biomass was harvested.

Planting date displays the data according to when the cover crop was planted.

Cover crop species
When you check more than one species, all selected cover crops planted at that time will show on the graph. For example if you select "barley" and "red clover" then only fields where both barley and red clover are present are shown. Cases when barley was planted alone will be filtered out. Other species may be present but the field will contain both barley and red clover together. If no points are displayed on the graph then no participating farmer planted that combination of cover crops.
County
Planting year
Soil texture
Prior crop
Tillage
Seeding method
Manure applied prior to cover crop
Manure applied post cover crop establishment

Toggle to visualize the statistical relationship between cover crop biomass and the selected growth variable. When checked, you will see a regression line, an equation representing the statistical relationship of the variables, and a brief sentence describing how much variation is explained by the select growth factor.
Add regression line