00519naa a2200145 a 450000100080000000500110000800800410001910000190006024501910007926000090027065000120027970000180029170000170030977300470032619555352013-04-10 1939 bl --- 0-- u #d1 aSIDERIS, C. P. aDistribution of different nitrogen fractions, sugar and other substances in various sections of the pineapple plant grown in soil cultures and receiving either Ammonium or nitrate salts. c1939 aAbacaxi1 aKRAUSS, B. H.1 aYOUNG, H. Y. tPlant Physiologygv. 14, p. 227-254, 1939.