This document stipulates the technical requirements for returning an appropriate amount of summer corn straw to the field to improve soil fertility under the winter wheat-summer corn annual production system. This document is applicable to the Huanghuaihai winter wheat-summer corn area with two crops per year.
T/SDAS 339-2022 history
2022T/SDAS 339-2022 Technical regulations for returning appropriate amount of summer corn stalks to fertilize wheat-corn rotation