Post on 27-Mar-2015
Basic rules for planning manure handling systems, cont.
The most suitable manure handling system for an individual farm could not be selected without taking into account:
• All other handling chains on the farm • The farmer’s knowledge and future plans• The farmer’s economic situation
Important parameters for planning of manure handling systems
Selection of handling system depends on the farmers knowledge, interests and planning horizon
Parameters In barns Storage SpreadingSpecific situation on individual farmsEconomic situation Yes Yes YesType of animal Yes Yes YesNumber of animals Yes Yes YesProduction level Yes Yes YesFavourable technologyFor large farms Available Available AvailableFor small farms Available Hard to find Co-operationLegislation and rulesAnimal welfare YesNitrate directive/GAP Yes Yes YesPermits for large farms Yes Yes YesOccupational health Yes Yes YesConstruction rules Yes
JTI - Institutet för jordbruks- och miljöteknik
Economy slurry handling, EEKExample: Pig farm (5 000/year), trailing hoses
Income, EEK/tonne• Nitrogen 28,90
• Phosphorus 21,90
• Potassium * 0,90
Total 51,70* Not utilised maximally
Costs, EEK/tonne• Storage 30,42
• Loading 7,30
• Transportation 7,76
• Spreading 40,46
• Soil compaction 1,67
Total 87,61
Types of manure in SwedenAccording to Satistics Sweden
1987/88 1992/93 1998/990
20
40
60
80
100Solid manure
Semi-solidmanure
Urine
Slurry
Mucking out