-
169.
Dehydration of food
Subjects
Food preservation
-
170.
Denitrification
Subjects
Reduction (Chemistry)
-
171.
Diseases and pests of the trees
Subjects
Plant pathology
-
172.
Doma de cavalls
Subjects
Horse sports
-
173.
Domestic animals
Subjects
Veterinary medicineEconomic zoology
-
174.
Domestication
Subjects
-
175.
Draft horses
Subjects
-
176.
Drainage
Subjects
Civil engineeringHydraulic engineeringSanitary engineeringReclamation of landSoils
-
177.
Dried fruit
Subjects
Farm produce
-
178.
Dromedary
Subjects
Camels
-
179.
Dry farming
Subjects
Cultivated plants
-
180.
Echinacea (Plants)
Subjects
CompositaeMedicinal plants
-
181.
Ecological livestock
Subjects
Animal husbandry
-
182.
Edible mushrooms
Subjects
MushroomsEdible plants
-
183.
Edible oils and fats
Subjects
Oils and fats
-
184.
Edible plants
Subjects
FoodEconomic botanyUseful plants
-
185.
Edible wild plants
Subjects
Edible plantsWild flowers
-
186.
Eggs
Subjects
Food of animal origin
-
187.
Eggs production
Subjects
-
188.
Electricity in agriculture
Subjects
Rural electrificationFarm mechanization
-
189.
Electronic cigarettes
Subjects
Cigarettes
-
190.
Empordà (Wine)
Subjects
-
191.
Enology
Subjects
Wine and wine making
-
192.
Escherichia coli
Subjects
Enterobacteriaceae