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This article in AJ

  1. Vol. 100 No. 5, p. 1303-1309
     
    Received: Nov 1, 2007
    Published: Sept, 2008


    * Corresponding author(s): chantignym@agr.gc.ca
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doi:10.2134/agronj2007.0361

Yield and Nutrient Export of Grain Corn Fertilized with Raw and Treated Liquid Swine Manure

  1. Martin H. Chantigny *a,
  2. Denis A. Angersa,
  3. Gilles Bélangera,
  4. Philippe Rochettea,
  5. Nikita Eriksen-Hamela,
  6. Shabtai Bittmanb,
  7. Katherine Buckleyc,
  8. Daniel Masséd and
  9. Marc-Olivier Gassere
  1. a Agric. and Agri-Food Canada, Soils and Crops Res. and Dev. Cent., 2560 Hochelaga Blvd, Québec, QC, Canada, G1V 2J3
    b Agric. and Agri-Food Canada, Pacific Agric. Res. Cent., Box 1000, Agassiz, BC, Canada, V0M 1A0
    c Agric. and Agri-Food Canada, Brandon Res. Cent., 18th St. & Grand Valley Road, Brandon, MB, Canada, R7A 5Y3;
    d Agric. and Agri-Food Canada, Dairy Cattle and Swine Res. Cent., 2000 College St., C.P. 90, Sherbrooke, QC, Canada, J1M 1Z3
    e Inst. de recherche et de dév. en agroenvironnement, 2700 Einstein St., Québec, QC, Canada, G1P 3W8

Abstract

Treatment of liquid swine manure (LSM) is an option to improve nutrient management. Mineral fertilizer, raw LSM, and LSM treated by anaerobic digestion, flocculation, filtration, or natural decantation were sidedressed (100 kg N ha−1) to grain corn (Zea mays L.) on a clay and a loam soil. Over 3 yr, corn grain yield (6 to 11 Mg ha−1), N export (83 to 176 kg ha−1), and P export (19 to 40 kg ha−1) were similar among LSM types and between LSMs and mineral fertilizer. This was attributed to the immediate incorporation of LSM to minimize N volatilization. Treated LSMs reduced P input to soil by 3 to 24 kg ha−1, compared with raw LSM. This reduced corn P export by 2 to 4 kg ha−1 on the clay soil, but had no effect on the loam soil. Soil NO3 content after harvest was higher with the mineral fertilizer (19–31 kg NO3–N ha−1) than with LSMs (13–20 kg NO3–N ha−1) in the clay soil, but was similar for all treatments in the loam soil. We conclude that when sidedressed to corn and immediately incorporated, raw and treated LSMs have a fertilizer value similar to the mineral fertilizer. Moreover, the risk of postharvest NO3 accumulation with the raw and treated LSMs was similar to mineral fertilizer on the loam and lower on the clay.

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Copyright © 2008. American Society of AgronomyCopyright © 2008 by the American Society of Agronomy