Animal slurry management and lombard regulations an example of application

摘要

The Regional Act n deg 37/93 is, at least for the Italian habits, very advanced because it considers for the first time the concept that all the farms with animals must submit a plan for agronomic utilisation of slurry. This plan must be prepared by using a special software (GIARA37) and circulated on floppy disk, for the approval by the different organisations involved. An investigation was carried out in three communes around Lodi, which is a significant and illustrative area of Lombard farming. The results obtained highlighted that in the area considered about 250. 000 m~3 of slurry are produced every year, which means a load of 100 m~3/ha. Another 48.500 tons of manure (20 t/ha) need to be added, which it makes a total of 645 t (260 kg/ha) of nitrogen. Since the quantity of nutrient required is 950 t, one can observe, generally speaking, that the relationship between slurry production and fields on which to spread it is not contradictory.