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Animal manure and precision farming: no contradiction in terms Jaap Schröder
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Content Aspects of precision improvement in crop production ● What type of NP source? ● How much of it? ● When exactly? ● Where exactly (‘placement’)? Placement ● Positioning in vertical plane ● Positioning in horizontal plane (‘band application’) Band application of manure on maize land Conclusions
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Manure placement: treatments
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Conclusion Smart fertilization: more than just a better placement: Precision =which type of fertilizer, how much, when, where? When and where issues: bear the root system in mind! Manure placement improves NUE and PUE of maize cropping system: ‘more with less’ if you like Still to do: ● Merits in view of the present Dutch P soil test (PPAE) ● Evaluation on heavier soil types ● Cost benefit analysis
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References Schröder, J.J. et al., 1996. Neth J Agric Sci 44: 209-225. Schröder, J.J. et al., 1997. Neth. J. Agric. Sci. 45: 249-261. Schröder, J.J., 2005. Biores. Techn. 92: 253-261. Schröder, J.J. et al., 2013. Proceedings Ramiran, Versailles, France. Schröder, J.J. et al., 2011. Chemosphere 84: 822–831 Schröder, J.J., 2014. Natural Resources (in press) Schröder, J.J. et al., 2014. Eur. J. Agronomy (submitted)
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