STUDIES OF SOME ENGINEERING FACTORS AFFECTING THE DEVLOPMENT OF POTATO HARVESTING DEVICE

THERMAL PROPERTIES OF SOME OIL PRODUCING CROPS

INFLUENCE OF NITROGEN NUTRITION ON THE IONIC BALANCE OF MAIZE GROWN IN CALCAREOUS SOIL

LONG-TERM UTILIZATION OF CROP RESIDUES FOR IMPROVING P STATUS IN SOIL

EFFECT OF LONG-TERM APPLICATIONS OF P FERTILIZERS AND CROP RESIDUES ON P ADSORPTION AND P BALANCE IN SOILS UNDER CORN-CLOVER CROPPING SYSTEM

DISTRIBUTION AND TRANSFORMATION OF PHOSPHORUS FORMS IN SOIL AFTER LONG-TERM APPLICATIONS OF P FERTILIZER AND CROP RESIDUES

SHORT TERM INFLUNCES OF ORGANIC AND INORGANIC FERTILIZERS ON NITARATE CONTENT AND SQUASH PRODUCTION