| Disease | SOME EFFECTS OF THE SOIL FUMIGANTS DOWFUME MC-2,CYCLONE,TELONE C-17 AND D-D ON THE GROWTH OF KOREAN GINSENG AND THE CHEMICAL COMPOSITION OF THE PLANTS WERE STUDIED. FUMIGANT TREATMENT INCREASED GROWTH OF ROOTS, STEMS AND LEAVES.
INCREASES OF ROOT GROWTH RATES RANGED FROM 2.8 TO 58.7% IN FRESH WEIGHT AND 8.1 TO 63.8% IN DRY WEIGHT WERE OBSERVED IN 2-YEAR OLD GINSENG PLANTS GROWN IN OLD GINSENG SOIL TREATED WITH THE DIFFERENT SOIL FUMIGANTS.
ANALYSIS OF N,P,K,CA,MG,NA,FE,MN AND ZN WAS MADE FOR THE ROOTS,STEMS AND LEAVES OF THE TWO-YEAR OLD PLANTS.
INCREASES OR DECREASES WERE OBSERVED AND THE CONTENTS OF EACH ELEMENT CHANGED WITH THE KIND OF FUMIGANT,PART OF THE PLANT, AND SOIL DEPTH OF THE FUMIGANT TREATMENTS, BUT THE CHANGING TENDENCIES WERE NOT CONSISTENT. |