白田売買
しろたばいばい
dealing in rice speculating on the year's harvest while the paddies are still covered with snow
黒田売買 is read as くろたばいばい (kurotabaibai) and means dealing in rice speculating on the year's harvest before seedlings are set out.
くろたばいばい
kurotabaibai
しろたばいばい
dealing in rice speculating on the year's harvest while the paddies are still covered with snow