CONSTRUCTION, OPERATION AND ACCURACY OF THE GRAY HYDROCAL SENSOR
A GENETIC AND MINERALOGICAL STUDY OF A SOIL DEVELOPED FROM GRANITIC GNEISS IN THE TEXAS CENTRAL BASIN
EFFECTS OF THE ORGANIC ADSORPTION ON CLAY ION-EXCHANGE PROPERTY
FLUCTUATIONS IN SOIL ENVIRONMENT AND THEIR PHYSICAL SIGNIFICANCE
AN AEROMETRIC APPARATUS FOR THE EVALUATION OF GASEOUS NITROGEN TRANSFORMATIONS IN FIELD SOILS
ACTIVE LAYER DEVELOPMENT AND SOIL MOISTURE DYNAMICS IN ENDERBY LAND, EAST ANTARCTICA
A TECHNIQUE FOR GROWING PLANTS AT CONTROLLED LEVELS OF ALL NUTRIENTS
RESPONSE OF YELLOW BIRCH IN ACID SUBSOIL TO MACRONUTRIENT ADDITIONS
A STUDY OF CERTAIN PHYSICAL PROPERTIES OF A VERTISOL IN THE GEZIRA AREA, REPUBLIC OF SUDAN
CHEMICAL MINERALOGICAL AND PHYSICAL PROPERTIES OF EASTERN KENTUCKY ACID-FORMING COAL SPOIL MATERIALS
EFFECT OF COMPOSITION OF MEDIUM AND OXYGEN SUPPLY RATES ON GROWTH OF RHIZOBIUM MELILOTI
SOME NEW MEXICAN SOIL CLAYS AND ELEVATION