ACID EXTRACTION OF PLANT BORON.JOHN MK.1975; J. SCI. FOOD AGRIC.; G.B.; DA. 1975; VOL. 26; NO 12; PP. 1911-1915; BIBL. 7 REF.Article

CADMIUM UPTAKE BY EIGHT FOOD CROPS AS INFLUENCED BY VARIOUS SOIL LEVELS OF CADMIUM = FIXATION DU CADMIUM PAR HUIT CULTURES, INFLUENCEE PAR DIFFERENTS TAUX DE CD DANS LE SOLJOHN MK.1973; ENVIRONMENT. POLLUT.; G.B.; DA. 1973; VOL. 4; NO 1; PP. 7-15; BIBL. 27 REF.Serial Issue

ERROR IN CADMIUM DETERMINATIONS DUE TO ADSORPTION BY FILTER PAPERSJOHN MK; VANLAERHOVEN CJ.1976; BULL. ENVIRONMENT. CONTAMIN. TOXICOL.; U.S.A.; DA. 1976; VOL. 15; NO 2; PP. 211-213; BIBL. 6 REF.Article

EFFECTS OF SEWAGE SLUDGE COMPOSITION, APPLICATION RATE, AND LIME REGIME ON PLANT AVAILABILITY OF HEAVY METALS.JOHN MK; VAN LAERHOVEN CJ.1976; J. ENVIRONM. QUAL.; U.S.A.; DA. 1976; VOL. 5; NO 3; PP. 246-251; BIBL. 15 REF.Article

EFFECT OF A SMELTER COMPLEX ON THE REGIONAL DISTRIBUTION OF CADMIUM, LEAD AND ZINC IN LITTERS AND SOIL HORIZONS.JOHN MK; VANLAERHOVEN CJ; BJERRING JH et al.1976; ARCH. ENVIRONMENT. CONTAMIN. TOXICOL.; U.S.A.; DA. 1976; VOL. 4; NO 4; PP. 456-468; BIBL. 1 P. 1/2Article

APPLICATION OF IMPROVED AZOMETHINE-H METHOD TO THE DETERMINATION OF BORON IN SOILS AND PLANTS.JOHN MK; CHUAH HH; NEUFELD JH et al.1975; ANAL. LETTERS; U.S.A.; DA. 1975; VOL. 8; NO 8; PP. 559-568; BIBL. 8 REF.Article

CADMIUM, LEAD AND ZINC ACCUMULATION IN SOILS NEAR A SMELTER COMPLEXJOHN MK; VAN LAERHOVEN CJ; CROSS CH et al.1975; ENVIRONMENT. LETTERS; U.S.A.; DA. 1975; VOL. 10; NO 1; PP. 25-35; BIBL. 17 REF.Article

A SYSTEM OF SOILS INFORMATION RETRIEVAL = UN SYSTEME DE RECHERCHE DE DONNEES PEDOLOGIQUESJOHN MK; VAN LAERHOVEN CJ; SPROUT PN et al.1972; CANAD. J. SOIL SCI.; CANADA ; 1972, VOL. 52, NUM. 0003, P. 351 A 357Serial Issue

USE OF A SOIL DATA FILE FOR PEDOLOGICAL RESEARCH. = L'UTILISATION D'UN FICHIER DE DONNEES SUR LES SOLS EN RECHERCHE PEDOLOGIQUEKLOOSTERMAN B; LAVKULICH LM; JOHN MK et al.1974; CANAD. J. SOIL SCI.; CAN; 1974, VOL. 54, NUM. 0002, P. 195 A 204Serial Issue

A SYSTEM OF SOILS INFORMATION RETRIEVAL = UN SYSTEME DE RECHERCHE DE DONNEES PEDOLOGIQUESJOHN MK; VAN LAERHOVEN CJ; SPROUT PN et al.1972; CANAD. J. SOIL SCI.; CANADA ; 1972, VOL. 52, NUM. 0003, P. 351 A 357Serial Issue

INTERPRETATION OF SOIL DATA BY COMPUTER.JOHN MK; LAVKULICH LM; JUNGEN JR et al.1969; CANAD. J. SOIL SCI.; CAN; 1969, VOL. 49, NUM. 0001, P. 177 A 179Miscellaneous