Winter Wheat Yield, Quality, and Nitrogen Removal Following Compost- or Manure-Fertilized Sugarbeet

Abstract

To efficiently use nitrogen (N) while protecting water quality, one must know how a second-year crop, without further N fertilization, responds in years following a manure application. In an Idaho field study of winter wheat (Triticum aestivum L.) following organically fertilized sugarbeet (Beta vulgaris L.), we determined the residual (second-year) effects of fall-applied solid dairy manure, either stockpiled or composted, on wheat yield, biomass N, protein, and grain N removal. Along with a no-N control and urea (202 kg N ha ). All materials were incorporated into a Greenleaf silt loam (Xeric Calciargid) at Parma in fall 2002 and 2003 prior to planting first-year sugarbeet. Secondyear wheat grain yield was similar among urea and organic N sources that applied optimal amounts of plant-available N to the preceding year's sugarbeet, thus revealing no measurable second-year advantage for organic over conventional N sources. Both organic amendments applied at high rates to the preceding year's sugarbeet produced greater wheat yields (compost in 2004 and manure in 2005) than urea applied at optimal N rates. On average, second-year wheat biomass took up 49% of the inorganic N remaining in organically fertilized soil after sugarbeet harvest. Applying compost or manure at greater than optimum rates for sugarbeet may increase second-year wheat yield but increase N losses as well.Abbreviations CNS, carbon-nitrogen-sulfur ARTICLE HISTORY

Dairy Manure and Synthetic Fertilizer: A Meta‐Analysis of Crop Production and Environmental Quality

“…This analysis confirmed the results of numerous studies finding that crop production using manure fertilizer can match synthetic fertilizer in a range of crops and environments in yield (Halvorson et al, 2016b;Annicchiarico et al, 2011;Dordas et al, 2008) and crop protein (Lehrsch et al, 2017;Basso et al, 2016), provided that the plant-available N is equivalent. Notably, this study did not include comparisons of any manure applications exceeding the recommended plant-available N application rate, although this practice may become more common as producers have access to less land (Martin et al, 2017;MacDonald et al, 2009).…”

Impact of Heat Damaged Corn Gluten Meal as Fertilizer on Forage Production During Winter and Summer Seasons and Soil Characteristics

“…Earlier, Gill (2019) observed N from urea was carried over to benefit crop in next year, when the growing season was dry and higher than recommended N rate was applied. Our results are consistent with those of Lehrsch, Brown, Lentz, Johnson-Maynard, and Leytem (2017) who demonstrated such second-year N benefits from organic N sources only when the amount of N applied exceeded the N demand of the crop grown in the initial year. Higher SOM levels after two years of HDCGM and POTL than COMF and ZERO indicate that some of the N from the applied HDCGM and POTL was not mineralized during the two years, and may benefit crops in following years.…”