Nitrogen use in double cropping soybean with non-fertilized winter oilseed crops

Sustainable intensification of cropping systems is a strategy to increase productivity and reduce disservices conventional agroecosystems. Camelina [Camelina sativa (L.) Crantz] field pennycress (Thlaspi arvense L.) are winter annual oilseed crops well suited fill the fallow period between corn (Zea mays soybean [Glycine max Merr.] in U.S. northern Corn Belt, but resources use could limit their addition. A 2-year study was conducted from 2015 2017 upper Midwest evaluate effect double on economic performance. Treatments included relay- sequential-cropped with camelina pennycress, monocrop as control. Biomass grain yield were not affected by system. Averaged over years systems, resulted more biomass, nitrogen (N) uptake 240, 186 139% respectively, compared pennycress. Soybean N higher relay relative sequential cropping. Relay similar total (soybean + crop) monocropped soybean. Double maintain net return Results indicate that can be economically viable Midwest. Yet, research aimed at optimizing through water while improving ecosystem services needed. Key words: camelina, cropping, multiple DOI: 10.25165/j.ijabe.20231602.7547 Citation: Liu R H, Gregg S, Garcia y A. Nitrogen non-fertilized crops. Int J Agric & Biol Eng, 2023; 16(2): 159–164.