To better understand cover crop benefits and receive nitrogen scavenging credits for cropping, farmers need simple robust methods of predicting biomass production. A new regulation focused on improving management over 200,000 ha irrigated land in the central coast California motivated us to evaluate if shoot length rye (Secale cereale L., ‘Merced’) triticale (× Triticosecale Wittmack, ‘Pacheco’...