1 / 19

Fertilizer Statistics Methodology

Fertilizer Statistics Methodology. Robert Mayo Senior Statistician FAO Statistics Division UNECE/FAO/Eurostat Workshop on Environment Statistics (Budva, Montenegro, May 2013). The importance of fertilizers and fertilizer statistics and indicators. Environmental impacts

estelag
Download Presentation

Fertilizer Statistics Methodology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Fertilizer StatisticsMethodology Robert Mayo Senior Statistician FAO Statistics Division UNECE/FAO/Eurostat Workshop on Environment Statistics (Budva, Montenegro, May 2013)

  2. The importance of fertilizers and fertilizer statistics and indicators • Environmental impacts • Development of production capacities; • Production, imports and exports; • Deliveries; • Stocks; • Use in agriculture; • Prices.

  3. Essential nutrients • Large quantities of: Nitrogen, Phosphorus, Potassium; • Smaller quantities of: Sulphur, Calcium, Magnesium; • Very small quantities of: Iron, zinc, manganese, copper, boron, molybdenum and chlorine.

  4. Terminology • Nitrogen – N, • Phosphates – P or P205, • Potash – K or K2O, • Calcium- CaO or Ca, • Magnesium - MgO or Mg.

  5. Classification • Straight fertilizers: N, P, or K; • Compound fertilizers: • NP compounds; • NK compounds; • PK compounds; • NPK compounds.

  6. Essential elements • Carbon (C), Hydrogen (H), Oxygen (O); • Primary nutrients: Nitrogen (N), Phosphorus (P205), Potassium (K20); • Secondary nutrients: Sulphur (S), Calcium (CaO), Magnesium (MgO) • Micronutrients: Boron (B), Copper (Cu), Iron (Fe), Zinc (Zn), Manganese (Mn), Molybdenum (Mo), Chlorine (Cl)

  7. Conversion factors for major nutrients P205x 0.4364 = P P x 2.2919 = P205 K20 x 0.8302 = K K x 1.2046 = K20 CaO x 0.7147 = Ca Ca x 1.3992 = CaO Mgo x 0.6030 = Mg Mg x 1.6582 = MgO

  8. Commonly used straight nitrogenous fertilizers • Straight Nitrogenous Fertilizers % N % N • Ammonium sulphate 21 20 - 21 • Ammonium nitrate 33.5 30 - 35 • Ammonium sulphate nitrate 26 • Calciumammonium nitrate (CAN) 26 20.5 - 30 • Sodium nitrate 16 • Calcium nitrate 15.5 • Urea 46 44 - 46 • Anhydrous ammonia (direct application) 82 • Aquaammonia 20.5 10 - 30 • Urea ammonium nitrate 32 26 – 32 • Ammonium chloride 25

  9. Commonly used straight phosphaticfertilizers • Straight Phosphatic Fertilizers % P205 % P205 • Single superphosphate (SSP)18 16 - 22 • Concentrated superphosphate 30 or 32 23 - 39 • Triple superphosphate (TSP)46 45 - 48 • Basic slag 14 8 - 18 • Ground rock phosphate (direct application) 30 23 - 35 • Fused magnesium phosphate 20 19 - 20

  10. Commonly used straight potassicfertilizers • Straight Potassic Fertilizers % K20 % K20 • Potassium chloride (muriate of potash) 60 59 - 61 • Potassium chloride with magnesium 40 39 - 41 • Potassium sulphate 50 48 - 52 • Potassium magnesium sulphate 22 or 30 21 - 30 • Ammonium Phosphates Examples of grades • Diammonium phosphate (DAP) 18–46-0 • Monoammonium phosphate (MAP) 11-52-0 11- (50-55) - 0 • Ammonium polyphosprate 10-34-0

  11. Commonly used potassium nitrate fertilizers • Potassium nitrate 13 – 0 - 47 • NP, PK, NK and NPK compounds Numerous grades, for example: • 20-20-0, 16-20-0, 13-13-21, • 15-15-15, 17-17-17, 12-24-12, • 20-10-10, 23-23-0, 25-5-5.

  12. Nutrient content and fertilizer grade • ammonium sulphate has 21% N • 100 kg of ammonium sulphate product contains 21 kg N. • superphosphate has 18% P205 • 100 kg of single superphosphate product contains 18 kg P205 • potassium chloride contains 60% K20 • 100 kg of potassium chloride product contains 60 kg K20.

  13. Nutrient content and fertilizer grade • For example, diammonium phosphate containing 18% N and 46% P205 is expressed as 18-46-0. • A compound fertilizer 12-6-6 contains 12 kg N, 6kg of P205 and 6kg of K20. • The "nutrient ratio" refers to the ratios of the three nutrient analyses e.g. the 12-6-6 fertilizer referred to above has a 2:1:1 ratio.

  14. Time periods • No standard time period for reporting fertilizer statistics; • Calendar year basis; • Split year basis - July/June; • Other time periods used; • Use of a standard, calendar year (January to December) advised. This provides possibility to relate the fertilizer consumption to agricultural production, yield, etc.

  15. Nutrient content calculation - N

  16. Nutrient content calculation - P

  17. Nutrient content calculation - K

  18. Nutrient content calculation – N, P, K

  19. Further information and acknowledgements Further information available at: FAO Statistics Division: http://www.fao.org/economic/ess/ess-agri/ess-resource-meth/en/ FAOSTAT Fertilizers: http://faostat.fao.org/site/575/default.aspx#ancor Acknowledgements: The input of Dominic Ballayan and Simona Mosco is very much appreciated in preparing this presentation.

More Related