| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
a Agric. & Agri-Food Canada, Southern Crop Protection & Food Res. Cent., 1391 Sandford St., London, ON, Canada N5V 4T3
b Agric. & Agri-Food Canada, Southern Crop Protection & Food Res. Cent., Delhi, ON, Canada, N4B 2W9
* Corresponding author (ballb{at}agr.gc.ca)
Received for publication January 6, 2005. Sidedressing may provide a better window of opportunity for land application of liquid swine (Sus scrofa) manure than early spring or fall application. Rates could be fine-tuned to match crop N demand using the presidedress nitrate test (PSNT) if: (i) the yield response function to sidedress rate is consistent and (ii) yield and PSNT are positively correlated. To optimize application rate and method, we measured corn (Zea mays L.) grain yield response to in-row injection (INJ) and topdress (TD) of liquid swine manure (LSM) sidedressed at different rates on clay loam (51-cm rows in 1999) and silt loam (75-cm rows from 2000–2002). Yields exceeded local long-term averages with INJ in all but the wettest year, were variable with TD, and were 2 Mg ha–1 greater with INJ than TD at 37.4 m3 LSM ha–1. From the quadratic yield response to sidedress injection rate, optimal rate (to achieve 95% maximum yield) ranged from 38 to 63 m3 ha–1 (plot-scale data; four 6-m sections per plot) and 37 to 49 m3 ha–1 (field-scale data; 0.2-ha plots). Yields were correlated with the PSNT (r = 0.75 for no LSM sidedress; r = 0.24 for all treatments). Given the consistent yield response to sidedress INJ rate and accurate (correct 88% of the time) PSNT-based predictions of additional N requirements (from comparisons of N fertilizer recommendation and relative yield), sidedress injection of LSM using the PSNT to fine-tune rates according to crop N requirements can be considered as a best management practice.
Abbreviations: bicarb-P, sodium bicarbonate extractable phosphorus • CEC, cation exchange capacity • INJ, inject • LSM, liquid swine manure • Ninorg, inorganic nitrogen • PSNT, presidedress nitrate test • SOM, soil organic matter • TD, topdress • UAN, urea ammonium nitrate
This article has been cited by other articles:
|
|
 |
|
  B. R. B. Coelho, R. C. Roy, A. J. Bruin, A. More, and P. White Zonejection: Conservation Tillage Manure Nutrient Delivery System Agron. J., January 8, 2009; 101(1): 215 - 225. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. H. Chantigny, D. A. Angers, G. Belanger, P. Rochette, N. Eriksen-Hamel, S. Bittman, K. Buckley, D. Masse, and M.-O. Gasser Yield and Nutrient Export of Grain Corn Fertilized with Raw and Treated Liquid Swine Manure Agron. J., August 11, 2008; 100(5): 1303 - 1309. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 B. R. Ball Coelho, R. C. Roy, E. Topp, and D. R. Lapen Tile Water Quality following Liquid Swine Manure Application into Standing Corn J. Environ. Qual., March 1, 2007; 36(2): 580 - 587. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 B. R. Ball Coelho, R. C. Roy, and A. J. Bruin Nitrogen Recovery and Partitioning with Different Rates and Methods of Sidedressed Manure Soil Sci. Soc. Am. J., February 2, 2006; 70(2): 464 - 473. [Abstract] [Full Text] [PDF]
|
|
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| The SCI Journals | Crop Science | Vadose Zone Journal | |||
| Journal of Natural Resources and Life Sciences Education |
Soil Science Society of America Journal | ||||
| Journal of Plant Registrations | Journal of Environmental Quality |
The Plant Genome | |||
