00425nam a2200133Ia 4500008004100000082001500041245004000056260003900096650001900135700001600154942000700170999001700177952009700194220204s9999    xx            000 0 und d  a631.8bNEL 0aChanging patterns in fertilizer use  aUSAbSoil Sc Soc of Agronomyc1968  aFertilizer use  aNELSON, L B  cBK  c22507d22507  00104070aMAINbMAINd2021-12-16l0o631.8 NELp03227r2021-12-16 00:00:00w2022-02-14yBK