Grasspea (<i>Lathyrus sativus</i> L.) as a Green N Source Reduces the Effects of 2,4 D in Susceptible Cotton (<i>Gossypium hirsutum</i> L.) Cultivars

Cotton (Gossypium hirsutum L.) production in Oklahoma has more than tripled the last ten years. This increase cotton acreage Oklahoma, a region that traditionally produces winter wheat, led to increased incidences of 2,4 D contamination sprayers are used spray crops. is extremely sensitive D, with losses yield and ultimately profit producer cases drift or tank carryover. In this study, six cultivars (three susceptible three tolerant) were grown combination four N treatments determine benefits drawbacks using green manure as source. Seedcotton, seed, lint all negatively impacted by cultivars. Additionally, water use was compared tolerant The negative effects on growth partially mitigated grasspea, though supply too much nitrogen D. Applying cultivar contaminated not recommended for short season environments like Oklahoma.