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