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Manure handling. Göran. Carlson. JTI - Swedish Institute of Agricultural and Environmental Engineering. Gå. till. första sidan. Nutrient flows from agriculture. Components in manure. Water. Spilt water Dishwater Cleaning water Precipitation - evaporation Litter Bedding material

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  1. Manure handling Göran Carlson JTI - Swedish Institute of Agricultural and Environmental Engineering Gå till första sidan

  2. Nutrient flows from agriculture

  3. Components in manure

  4. Water • Spilt water • Dishwater • Cleaning water • Precipitation - evaporation • Litter • Bedding material • Feed residuals

  5. Factors influencing the distribution of components in manure

  6. Chemical composition of Solid and Semi-solid manure Kg/tonnes Bild diagram flyt- resp fastgödsel TotalN Ammonia N Phosphorus Potassium

  7. Chemical composition of slurry Kg/tonnes Ammonia N Phosphorus Potassium Total N

  8. Availability and loss of N for manure from milking cows

  9. Aspects on manure handling systems

  10. Basic rules for planning manure handling systems Analyse and discuss the situation on each farm in order to select a suitable manure handling system which: • Optimises utilisation of nutrients • Supports good animal welfare to achieve high production • Create good and safe working conditions

  11. 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

  12. Important parameters for planning of manure handling systemsSelection of handling system depends on the farmers knowledge, interests and planning horizon

  13. JTI - Institutet för jordbruks- och miljöteknik

  14. Types of manure in SwedenAccording to Satistics Sweden 1 0 0 Solid manure 8 0 Urine 6 0 Semi-solid manure 4 0 Slurry 2 0 0 1 9 8 7 / 8 8 1 9 9 2 / 9 3 1 9 9 8 / 9 9

  15. Mucking out

  16. Why should I work for a well functioning manure handling system in my barn? • Higher production • Cleaner animals • Better animal health • Better hygienic status • Better working conditions

  17. Manure Spreading

  18. Spreading precision, application rate, longitudinal and transversal

  19. Factors causing ammonia emissions

  20. Rear discharge, one-step spreader, vertical beaters

  21. Rear discharge, one-step spreader, horizontal beaters

  22. Rear discharge, one-step spreader, horizontal beaters

  23. Rear discharge, two-step spreader, horizontal beaters+ spreading discs

  24. Rear discharge, two-step spreader,longitudinal augers + spreading discs, especially for semi-solid manure

  25. Slurry spreader with splash plate

  26. Slurry spreader with trailing hoses

  27. Entire country 66% splash plate 26% trailing hoses 8 % technique unknown Southern Sweden 43 % splash plate 56% trailing hoses 1% technique unknown Spreading technique for slurryin Sweden 1998/99According to Statistics Sweden

  28. Advantages: Low ammonia losses Improved feed quality Higher N-utilisation Low odour emissions Disadvantages: Increased power requirement Increased spreading costs Risk for damage in ley Advantages and disadvantages, shallow injection versus traditional technique

  29. Harvested winter wheat after broadcast and band spreading of slurryat different occasions

  30. Hygienic risks in grassland cropping

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