00501nam a2200181Ia 4500008004100000041001200041082001000053082001100063100001900074100001100093245009400104260001200198260003900210260000900249300001400258365002500272650002200297150909s9999    xx            000 0 und d  aEnglish  a581.3  bWIL/MI  aWilliams R D    eAuthor  aMinor elements and their effects on the growth and chemical composition of herbage plants  aEngland  bCommon  Wealth Agricultural Bureau  c1963  a89  Pages  aUKP.1.40              aPlant development