This dataset contains estimates of start end planting dates for both single- and double-cropping soybeans in Brazil for the period between agrcultural years 1973/1974 and 2011/2012, presented in Abrahão and Costa (2017). The estimates are based on estimates of the historical photoperiod and rainy season limitations, and are available as a file in a NetCDF  file in a 1°x1° grid (~110x110km at the Equator).

Abrahao, G.M.; Costa, M.H., 2018, Evolution of rain and photoperiod limitations on the soybean growing season in Brazil: The rise (and possible fall) of double-cropping systems. Agricultural and Forest Meteorology, 256-257C (2018) pp. 32-45, DOI:10.1016/j.agrformet.2018. 02.031