EFFECT OF BIO AND ¡ OR MINERAL NITROGENOUS FERTILIZERS ON MAIZE AND WHEAT CROPS PRODUCTION AND SOIL FERTILITY

SOME NITROGEN FERTILIZER SOURCES AND SPLITTING EFFECT IN THE PRESENCE AND ABSENCE OF ORGANIC MANURE ON COTTON YIELD AND AVAILABLE SOIL NITROGEN

EFFECT OF SOME AMELIORATION PROCESSES ON NUTRIENTS AVAILABILITY AND UPTAKE IN SALT AFFECTED SOILS

THE EFFECTS OF SOIL MOISTURE REGIME AND ORGANIC AND IN-ORGANIC NITROGEN FERTILIZERS RATES ON SOME SOIL PHYSICAL PROPERTIES, WHEAT YIELD AND SOME NUTRIENTS UPTAKE

EFFECT OF DIFFERENT NITROGEN AND PHOSPHORUS SOURCES ON WHEAT YIELD, ITS COMPONENTS AND CHEMICAL CHARACTERISTICS UNDER DIFFERENT SOIL CONDITIONS

NITROGEN AND POTASSIUM STATUS IN SOIL AS AFFECTED BY FYM RATES, POTASSIUM FERTILIZER LEVELS AND SILICATE BACTERIA

COMPARATIVE STUDY BETWEEN SOME ORGANIC FERTILIZER SOURCES AND AMMONIUM NITRATE ON CORN AND SOIL PROPERTIES

NITROGEN EFFICIENCY FOR WHEAT AS AFFECTED BY AMMONIUM SULPHATE AND COMPOST IN COMBINATION WITH SOME BIO AMENDMENTS UNDER SANDY AND CALCAREOUS SOIL CONDITIONS

AVAILABILITY AND UPTAKE OF NITROGEN AND POTASSIUM AS AFFECTED BY INORGANIC FERTILIZERS IN FLOODED RICE SOILS

PHOSPHORUS FRACTIONS IN SOIL AMENDED BY MANURE, INORGANIC AND BIO NITROGEN FERTILIZERS UNDER VARIOUS INCUBATION PERIODS