Yazar
f l duley
6 cilt bulundu.
F. L. Duley · U.S. Dept. of Agriculture
31 sayfa · 1941
Soil absorption and adsorption / Loam soils / Sandy loam soils
F. L. Duley · U.S. Dept. of Agriculture
32 sayfa · 1948
Soil conservation / Stubble mulching / Tillage
F. L. Duley · U.S. Dept. of Agriculture, Agricultural Research Service, in cooperation with Nebraska Agricultural Experiment Station
31 sayfa · 1958
Soil conservation / Stubble mulching / Soil management
F. L. Duley, Merritt Finley Miller · University of Missouri, College of Agriculture, Agricultural Experiment Station
50 sayfa · 1923
Soil erosion / Soil conservation / Runoff
R. I. Throckmorton, F. L. Duley · Agricultural Experiment Station, Kansas State College of Agriculture and Applied Science
57 sayfa · 1935
Soil fertility