2011-08-092011-08-091991https://hdl.handle.net/10365/17471SF-1013; The following is reproduced from the 1988 Crop Production Guide and represents a conventional or quite traditional approach to soil fertility management. South Dakota and Montana also utilize similar philosophies.NDSU Agriculture and University Extension: Creative Commons Licensing Deed (http://creativecommons.org/licenses/by-nc-sa/3.0/)Fertilizers.Grain.Food crops.Wheat.SF-1013