The few differences between manure and fertilizer are listed below:
Fertilizer is inorganically prepared, while manure is obtained organically from the decomposed plant and animal material.
Fertilizer is absorbed readily by the plants from the soil, while absorption of manure by the plants is slow.
Fertilizer is enriched with nutrients which is necessary for the plants, while manure is comparatively low in nutrient content.
Fertilizer does not add humus to the soil, while manure adds humus to the soil when applied.
Fertilizer is prepared synthetically in factories, while manure is prepared in fields.
Storage and transportation of fertilizer is quite convenient, while storage and transportation of manure is difficult.
Example of fertilizer is ammonia and that of manure is green manure.
Hence, fertilizers and manure have several differences as listed above.