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acre Agricultural Adjustment Act Anabasine arsenate artificial light beans blotchy ripening Bordeaux Bordeaux mixture calcium calcium arsenate celery cent chain store Christensen Cleveland Ohio Columbus Ohio commercial Committee Conn consumer convention cooperative cost disease distribution dust effect farm farmers fertilizer field fluorine footcandles fruits and vegetables grade green greenhouse growing growth harvest heat Hoag inches increased insecticides insects labor lamps lead arsenate leaf mold lettuce marketing agreement program ment method mineral motor truck muck operation organization package packing plants potatoes pounds practical President production pyrethrum regulation Rocky River Ohio root rotenone season Secretary Section seed sell shipments shipped soil spinach spray steam sterilization supply terminal markets tile tion tomatoes truck crops truckers variety vege vegetable crops Vegetable Growers Association vegetable industry Vitamin Vitamin E York