Closure to 'Using Thermal Units for Crop Coefficient Estimation and Irrigation Scheduling Improves Yield and Water Productivity of Corn (Zea mays L.)' by C. Bautista-Capetillo, M. Zavala, and A. Martinez-Cob

摘要

As stated in the paper, the research focused on the estimation of corn crop evapotranspiration (ET_c) in a commercial farm using FAO56 (Allen et al. 1998) and Martinez-Cob (2008) approaches to compute daily crop coefficients (K_c). Therefore, ET_c was the unique variable in the study, and factors as effective precipitation and application efficiency were the same. Thus, ET_c was the only factor in this paper that led to different corn crop water requirements (i.e., different irrigation doses) during the phenological development of the crop.