Standardpräsentation Investor Relations - K+S Aktiengesellschaft
Standardpräsentation Investor Relations - K+S Aktiengesellschaft
Standardpräsentation Investor Relations - K+S Aktiengesellschaft
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Potash and Magnesium Products<br />
Strong Impact on Soybean Yield<br />
under Continued Elimination of Potash<br />
Grain yield (kg/ha)<br />
3500<br />
3000<br />
• Regular potash application of<br />
approx. 80 kg/ha of K 2 O in 5<br />
years before trial in Brazil<br />
2500<br />
2000<br />
• Climate conditions can cause<br />
volatility in yield<br />
1500<br />
1000<br />
500<br />
3,135 2,965 2,223 2,214<br />
(-5%) (-29%) (-29%)<br />
last yield<br />
with K<br />
Year 1<br />
without K<br />
Year 2<br />
without K<br />
Year 3<br />
without K<br />
772 (-75%)<br />
Year 4<br />
without K<br />
Year 5<br />
without K<br />
830 (-74%)<br />
Years of cultivation under declining K effect<br />
Source: Borkert, C.M., et al. 2005, Potash in soybean crop. In: Potassium in Brazilian agriculture, eds. T. Yamada and T.L. Roberts, 671-722. Piracicaba,<br />
Brazil: Potafos. (In Portugese); Embrapa Soybean, IPNI, personal correspondence with Paul E. Fixen, Ph.D., Dr. Adilson de Oliveira Junior, Dr. Luís I.<br />
Prochnow; The experiment took place in Ponta Grossa, Paraná, Brasil; Soil classification: Oxysol, clayed texture (clay content = 38%)<br />
June 2013 <strong>K+S</strong> Group 23