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pěstování ovocných rostlin 24 škůdci rostlin 14 nemoci rostlin 8 jabloně 7 včelařství 6 fauna 5 jablka 5 more ...
pěstování ovocných rostlin 24 škůdci rostlin 14 nemoci rostlin 8 jabloně 7 včelařství 6 fauna 5 jablka 5 more ...
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Published 1803
“...Account of the Experiments tried by the Board of Agriculture in the composition of various sorts...”
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Published 1865
“...New York State College of Agriculture,...”
Book
16
17
Published 1897
“...U.S. Department of Agriculture,...”
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18
Published 1897
“...Congrès international d'agriculture tenu a Budapest du 17 au 20 Septembre 1896...”
Book
19
Published 1902
“...U.S. Department of Agriculture, Division of Entomology-Bulletin ;...”
Book
20
Published 1903
“...Agricultural Experiment Station of the Rhode Island State College. Bulletin ;...”
Book