Development and evaluation of a precision solid and semi-solid manure land applicator

H. Landry; J.M. Agnew; C. LaguÃ«; C. Iskra; M. Roberge

Development and evaluation of a precision solid and semi-solid manure land applicator

In: Precision Livestock Farming â05

Authors:

H. Landry

H. Landry Department of Agricultural and Bioresource Engineering, University of Saskatchewan, Saskatoon, SK, Canada, S7N 5A9 Hubert.Landry@asae.org

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J.M. Agnew

J.M. Agnew Department of Agricultural and Bioresource Engineering, University of Saskatchewan, Saskatoon, SK, Canada, S7N 5A9 Hubert.Landry@asae.org

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C. LaguÃ«

C. LaguÃ« Department of Agricultural and Bioresource Engineering, University of Saskatchewan, Saskatoon, SK, Canada, S7N 5A9 Hubert.Landry@asae.org

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C. Iskra

C. Iskra Department of Agricultural and Bioresource Engineering, University of Saskatchewan, Saskatoon, SK, Canada, S7N 5A9 Hubert.Landry@asae.org

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M. Roberge

M. Roberge Department of Agricultural and Bioresource Engineering, University of Saskatchewan, Saskatoon, SK, Canada, S7N 5A9 Hubert.Landry@asae.org

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Type:: Chapter

Pages:: 123â130

DOI:: https://doi.org/10.3920/978-90-8686-548-2_015

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Two prototype precision applicators adapted to solid and semi-solid livestock manure were designed, fabricated and evaluated with the goal of improving the transversal and longitudinal uniformity of distribution of manure and also to accommodate other modes of application than broadcast surface application. A study of the performances of two discharge conveying systems (scraper and system of 4 screw conveyors) was carried out. The specific energy required to unload the machine with the screw conveyors was found to be higher than with the scraper conveyor. The effects of the conveyor velocity, inclination angle of the sidewalls and flow-control gate on the power requirements of the conveying systems and discharge rate were highlighted. A transverse distribution system was implemented on the machines and allowed for improved transversal uniformity of application (C.V. < 10%). Numerical modeling using the discrete element method was applied to the first-generation precision land applicator. The simulated results for the distribution across the width of the machine were in close agreement with the experimental results.

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Precision Livestock Farming â05

E-Book ISBN:: 9789086865482

Publisher:: Wageningen Academic

Print Publication Date:: 10 Oct 2005

Subjects
- Life Sciences
  - General
  - Animal & Veterinary

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Development and evaluation of a precision solid and semi-solid manure land applicator

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Precision Livestock Farming â05

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Precision Livestock Farming â05