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Animal manure and precision farming: no contradiction in terms Jaap Schröder.

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Präsentation zum Thema: "Animal manure and precision farming: no contradiction in terms Jaap Schröder."—  Präsentation transkript:

1 Animal manure and precision farming: no contradiction in terms Jaap Schröder

2 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

3 Manure placement: treatments

4 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

5 References  Schröder, J.J. et al., Neth J Agric Sci 44:  Schröder, J.J. et al., Neth. J. Agric. Sci. 45:  Schröder, J.J., Biores. Techn. 92:  Schröder, J.J. et al., Proceedings Ramiran, Versailles, France.  Schröder, J.J. et al., Chemosphere 84: 822–831  Schröder, J.J., Natural Resources (in press)  Schröder, J.J. et al., Eur. J. Agronomy (submitted)


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