na INLIS000000000003214 20210519133602 210519||||||||| | ||| |||| || || 010-0521003214 Ger 633.91/HEI/k 633.91/HEI/k Constantin Heinemann Kautschuk anbau und dungung Bochum Ruhr-Stickstoff 1953 113 p.: ill.; 20 cm. CULTIVATION -- HEVEA BRASILIENSIS -- FERTILIZER APPLICATION