Nikièma, P., Buckley, K. E., Enns, J. M., Qiang, H. and Akinremi, O. O. 2013. Effects of liquid hog manure on soil available nitrogen status, nitrogen leaching losses and wheat yield on a sandy loam soil of western Canada. Can. J. Soil Sci. 93: 573-584. Manure can improve soil quality and enhance crop yields. However, excessive manure use may contribute to nitrate () leaching, particularly on coarse-textured soils. The objective of this study was to evaluate the effects of liquid hog manure (LHM) on wheat yield, soil available N and leaching on a sandy soil in Manitoba. Manure treatments included three rates of LHM applied to supply 64 (low), 128 (medium) and 192 kg N ha-1 (high) in 3 consecutive years (2002-2004). Unamended plots were used as a control. Available nitrogen was measured three times during each growing season at soil depths of 0-15, 15-30, 30-60, 60-90, and 90-120 cm. Undisturbed soil core lysimeters were used to measure leaching. Crop yields (grain and straw), N-uptake and N use efficiency were assessed at the end of each growing season. In 2002 and 2003, LHM had little effect on wheat yield, N nutrition and leaching due to below-normal rainfall in both years. In contrast, in 2004 when precipitation was above normal, LHM amendment increased grain yield and plant N-uptake. Relative to the control, grain yield was 20, 30 and 50% greater in the low, medium and high manure-N plots, respectively. Manure increased soil available N concentration 1.2-, 1.3- and 1.7-fold and induced additional -N leaching of 4.7, 28.4 and 54.5 kg ha-1 in the low, medium and high manure-N plots, respectively. Results suggest that LHM should be used with caution on sandy soils due to leaching potential in years of high precipitation and low crop yields in years of low precipitation.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.