Detecting mineral nutrient deficiencies in tropical and temperate cropsDonald L. Plucknett, Howard Bennett Sprague · First published 1989Open the Tome
Characteristics of economically important food and forage legumes and forage grasses for the tropics and subtropicsHoward Bennett Sprague · First published 1975Open the Tome
The contribution of legumes to continuously productive agricultural systems for the tropics and subtropicsHoward Bennett Sprague · First published 1975Open the Tome
Grasslands of the United States: their economic and ecologic importanceHoward Bennett Sprague · First published 1974Open the Tome
Feeding turf grasses on lawns, parks, and recreation fieldsHoward Bennett Sprague · First published 1936Open the Tome
The place of field crop production in New JerseyHoward Bennett Sprague · First published 1934Open the Tome
Experiments with alfalfa, clover, and timothy for hay in New JerseyHoward Bennett Sprague, E. E. Evaul · First published 1930Open the Tome
Winter wheat tests in New JerseyHoward Bennett Sprague, E. E. Evaul · First published 1929Open the Tome
