The performance of Mandarin (Ottawa) soybeans was tested over a 4-year period in fifteen planting patterns resulting from five row spacings \i,74,21,28 and 35 inches) and-three plant spacings (1,2, and 3.inches) within the row. Response of yield and oil percentage to spacing was considerable. The combination of narrowest row and widest pllnt spacing within the row (7 X 3) gave the high.est yield, whereas highest per cent oil was obtained from the widest row and the widest plant spacins (35 X 3)' One year of testing of l-,2-,3-,4-, and 5-irrch plant-sp-acing,s in}-inch rorvs suggested that ttre"differcnti;l respons': of oil ahd yieid mifht be reconciled to the best advantage in a 7 X 4 patte:rn,Protein showed ]ess response io sp,acing. It was highest at the closesr spacins. The onlv siEnificant differ:ence occurred berween the 1and

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