Nitrogen use efficiency on farm                 Tor Holba   Fertilizers Europe Conference 2011
Mineral nutrients are essential building blocks for crops            Crops absorb mineral nutrients and water from the soi...
Mineral fertilizers replace nutrients thatare exported with the harvest                    Losses to air  Supply of crop r...
Soil depletion can be observed inlong-term experiments12        Grain yield t per ha10 8 6 4 2 0            With N fertili...
On soils depleted of nutrients, crops cannot grow to their yield potential     Billion people 8 6                         ...
Optimum fertilizer contributes to lowclimate gas emissions   Climate gas emission (kg CO2eq/10 t grain)   12000   10000   ...
Contribution of Agriculture toClimate gas emissions         Europe (EU-27)                                        GLOBAL  ...
Land used outside Europe toproduce agricultural goods forEuropean consumption  40     net use of land for imports into EU ...
Nitrogen use efficiency isimportant    Where are we today?           Food, Fertilizers and Natural
Today EU produce more crops with lessnitrogen consumption   % (1990 = 100%)   120                                         ...
In Europe (EU 15) NUE has increasedduring the last 20 years while N2Oemissions from agricultural from agricultural soils (...
How to further improve NUE ?   Efficient            N fertilizer products tailored   to the growing conditions  N fertil...
Impact of different nitrogen fertilizersand nitrogen forms on NUE             100   NUE (%)                               ...
Fertilizers Europe’ s ProductStewardship Program              Good Agricultural Practices: Examples of tools developed    ...
Example how such tools likeprecision farming technologies canimprove NUE More grain yields at a lower N application rate r...
CONCLUSIONS   European agriculture is more a part of    the solution than of the problem                                  ...
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Presentation of Tor Holba, one of our Vice-President of Board, at Food, Fertilizers and Natural Resources Conference by Fertilizers Europe

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Presentation of Tor Holba, one of our Vice-President of Board, at Food, Fertilizers and Natural Resources Conference by Fertilizers Europe

  1. 1. Nitrogen use efficiency on farm Tor Holba Fertilizers Europe Conference 2011
  2. 2. Mineral nutrients are essential building blocks for crops Crops absorb mineral nutrients and water from the soil Food, Fertilizers and Natural
  3. 3. Mineral fertilizers replace nutrients thatare exported with the harvest Losses to air Supply of crop residues and organic fertilizer NPK NPK Export of nutrients with the harvest N K Mineralisation Organic P substance, humus S Mg … Losses from soil Soil The soil gets depleted without mineral fertilizers Food, Fertilizers and Natural
  4. 4. Soil depletion can be observed inlong-term experiments12 Grain yield t per ha10 8 6 4 2 0 With N fertilizer 1 year without N long term without NSource: own calculations based on Broadbalk long-term trial in Rothamsted/UK and annual Yara field trials (1996-2010) Food, Fertilizers and Natural
  5. 5. On soils depleted of nutrients, crops cannot grow to their yield potential Billion people 8 6 People nourished 48% by use of 4 mineral fertilizers without 2 additional mineral fertilizer 0 Today Source: adopted from Erisman et al. (2008), Nature Geoscience without fertilizer with fertilizer Today, nearly 50% of the world’s population is nourished from the use of mineral fertilizers Food, Fertilizers and Natural
  6. 6. Optimum fertilizer contributes to lowclimate gas emissions Climate gas emission (kg CO2eq/10 t grain) 12000 10000 8000 6000 CO2 release due to additional land use 4000 needed to compensate for lower yield 2000 0 no N optimum N Intensive best practice agriculture is the way forward re food security and environment sustainability Food, Fertilizers and Natural
  7. 7. Contribution of Agriculture toClimate gas emissions Europe (EU-27) GLOBAL Energy, Energy, Waste, Waste, Industry, 1%* Production of mineral Industry, N fertilizer Production of mineral N etc. (90%) etc. (74%) fertilizer (0.8%)* 9% Emissions from agriculture Emissions from agriculture (14%) Land use change for agriculture (12% ) = ~ 6 bn t CO2) Total: ~ 5 bn t CO2eq Total: ~ 49 bn t CO2eq Based on UNFCCC (2008), Bellarby et al. (2008), *Fertilizers Europe Food, Fertilizers and Natural
  8. 8. Land used outside Europe toproduce agricultural goods forEuropean consumption 40 net use of land for imports into EU (Mio ha) 35 30 25 20 15 10 5 0 1999/2000 2007/2008 Source: Witzke & Noleppa (2010), Research Report Food, Fertilizers and Natural
  9. 9. Nitrogen use efficiency isimportant  Where are we today? Food, Fertilizers and Natural
  10. 10. Today EU produce more crops with lessnitrogen consumption % (1990 = 100%) 120 Crop production 110 100 90 N Fertilizer consumption 80 70 60 50 40 1990 1995 2000 2005 2010 Food, Fertilizers and Natural
  11. 11. In Europe (EU 15) NUE has increasedduring the last 20 years while N2Oemissions from agricultural from agricultural soils (Mio t CO2eq) NUE (%) * N2O soils havedecreased 70 240 65 230 60 220 55 210 50 200 45 190 40 35 180 30 170 25 160 20 150 1990 1995 2000 2005 2010 1990 1995 2000 2005 2010 Today Europe has the highest Nitrogen Use Efficiency (NUE) of any region in the world. Source: FAO, Fertilizers Europe, Yara Source: United Nations Framework Convention on Climate * NUE = crop N removal / mineral N input * 100 Change (UNFCCC, 2011) N import with feed is not considered Food, Fertilizers and Natural
  12. 12. How to further improve NUE ?  Efficient N fertilizer products tailored to the growing conditions N fertilizer management tools to better adjust fertilizer application rate and timing to crop requirements Food, Fertilizers and Natural Pag
  13. 13. Impact of different nitrogen fertilizersand nitrogen forms on NUE 100 NUE (%) 93 90 89 85 85 80 70 Urea UAN CAN CN Avg. of 15 field trials with winter wheat at a N supply of 160 kg/ha Food, Fertilizers and Natural
  14. 14. Fertilizers Europe’ s ProductStewardship Program Good Agricultural Practices: Examples of tools developed by the European fertilizer industry • Covers the entire value chain • Mandatory to Fertilizers Europe members • Regularly audited Food, Fertilizers and Natural
  15. 15. Example how such tools likeprecision farming technologies canimprove NUE More grain yields at a lower N application rate result in an improved NUE 10% + 6% 5% grain yield 0% Farmer practice -5% N application -10% rate -15% - 14% Average yield and N application of 23 trials with winter wheat, 2001-2008) Food, Fertilizers and Natural
  16. 16. CONCLUSIONS European agriculture is more a part of the solution than of the problem 16 Food, Fertilizers and Natural

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