HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (28) Citing Articles via Google Scholar Google Scholar Articles by Jensen, B. Articles by Jensen, E. S. Search for Related Content PubMed Articles by Jensen, B. Articles by Jensen, E. S. Agricola Articles by Jensen, B. Articles by Jensen, E. S.

Availability of Nitrogen in ¹⁵N-Labeled Ruminant Manure Components to Successively Grown Crops

Dep. of Plant Physiology and Soil Science, Danish Inst. Agric. Sciences, Res. Ctr. Foulum, P.O. Box 50, DK-8830 Tjele, Denmark

E. S. Jensen

Plant Biol. Biogeochem. Dep., Risø Natl. Lab., P.O. Box 49, DK-4000 Roskilde, Denmark

*Corresponding author (Bendt.Jensen{at}agrsci.dk).

ABSTRACT

To improve crop N use efficiency of animal manures, the availability of N in individual manure components must be better understood. This microplot field study quantifies crop offtakes of N in four similar batches of ruminant manure containing ¹⁵N-labeled urine, feces, or straw, or unlabeled components only. The urine and feces were from a sheep first fed unlabeled hay and then ¹⁵N-labeled hay. Manures ( 19 g total N m^-2) were incorporated into two coarse-textured soils before planting to spring barley (Hordeum vulgare L.) undersown with perennial ryegrass (Lolium perenne L.). Manures with one ¹⁵N-labeled component were supplemented with unlabeled NH₄NO₃ (7.3 g N m^-2), while unlabeled manure was given ¹⁵NH₄¹⁵NO₃. Labeled and unlabeled N were determined in the spring barley at maturity and in six cuts of ryegrass taken during the succeeding 2.5 yr. The homogeneity of feces and urine ¹⁵N-labeling was high. Dry matter yields and crop N offtakes were similar in all treatments. Barley (grain and straw) recovered 40, 26, 10, and 6%, respectively of ¹⁵N added with mineral fertilizer, urine, straw, and feces. Weighted mean recovery of the combined manure and fertilizer dressing was 22% of the added ¹⁵N. Crop recovery of urine and feces ¹⁵N was smaller and that of straw ¹⁵N higher than reported in previous studies on individual components, indicating that the N mineralization-immobilization turnover (MIT) of the manure components interacted. In the second and third growth seasons, 2.7 to 4.4% and 1.1 to 2.0% of the ¹⁵N was recovered in grass cuts, respectively. Total recovery ranged from 84 to 95% of the added ¹⁵N, suggesting small N losses from this cropping system.

Received for publication March 16, 1998.

This article has been cited by other articles:

				C. Bosshard, E. Frossard, D. Dubois, P. Mader, I. Manolov, and A. Oberson Incorporation of Nitrogen-15-Labeled Amendments into Physically Separated Soil Organic Matter Fractions Soil Sci. Soc. Am. J., May 29, 2008; 72(4): 949 - 959. [Abstract] [Full Text] [PDF]

				G. R. Munoz, K. A. Kelling, K. E. Rylant, and J. Zhu Field Evaluation of Nitrogen Availability from Fresh and Composted Manure J. Environ. Qual., May 1, 2008; 37(3): 944 - 955. [Abstract] [Full Text] [PDF]

				P. R. Cusick, K. A. Kelling, J. M. Powell, and G. R. Munoz Estimates of Residual Dairy Manure Nitrogen Availability Using Various Techniques J. Environ. Qual., October 27, 2006; 35(6): 2170 - 2177. [Abstract] [Full Text] [PDF]

				P. Sorensen and I. K. Thomsen Production of Nitrogen-15-Labeled Pig Manure for Nitrogen Cycling Studies Soil Sci. Soc. Am. J., August 25, 2005; 69(5): 1639 - 1643. [Abstract] [Full Text] [PDF]

				P. Sorensen and I. K. Thomsen Separation of Pig Slurry and Plant Utilization and Loss of Nitrogen-15-labeled Slurry Nitrogen Soil Sci. Soc. Am. J., August 25, 2005; 69(5): 1644 - 1651. [Abstract] [Full Text] [PDF]

				J. M. Powell, K. A. Kelling, G. R. Munoz, and P. R. Cusick EVALUATION OF DAIRY MANURE NITROGEN-15 ENRICHMENT METHODS ON SHORT-TERM CROP AND SOIL NITROGEN BUDGETS Agron. J., January 1, 2005; 97(1): 333 - 337. [Abstract] [Full Text] [PDF]

				G. R. Munoz, K. A. Kelling, J. M. Powell, and P. E. Speth Comparison of Estimates of First-Year Dairy Manure Nitrogen Availability or Recovery Using Nitrogen-15 and Other Techniques J. Environ. Qual., March 1, 2004; 33(2): 719 - 727. [Abstract] [Full Text] [PDF]

				J. M. Powell, Z. Wu, K. Kelling, P. Cusick, and G. Munoz Differential Nitrogen-15 Labeling of Dairy Manure Components for Nitrogen Cycling Studies Agron. J., March 1, 2004; 96(2): 433 - 441. [Abstract] [Full Text] [PDF]

				I. K. Thomsen Nitrogen Use Efficiency of 15N-labeled Poultry Manure Soil Sci. Soc. Am. J., March 1, 2004; 68(2): 538 - 544. [Abstract] [Full Text] [PDF]

				M. H. Chantigny, D. A. Angers, T. Morvan, and C. Pomar Dynamics of Pig Slurry Nitrogen in Soil and Plant as Determined with 15N Soil Sci. Soc. Am. J., March 1, 2004; 68(2): 637 - 643. [Abstract] [Full Text] [PDF]

				G. R. Munoz, J. M. Powell, and K. A. Kelling Nitrogen Budget and Soil N Dynamics after Multiple Applications of Unlabeled or 15Nitrogen-Enriched Dairy Manure Soil Sci. Soc. Am. J., May 1, 2003; 67(3): 817 - 825. [Abstract] [Full Text] [PDF]

				M. E. Valente, G. Borreani, P. G. Peiretti, and E. Tabacco Codified Morphological Stage for Predicting Digestibility of Italian Ryegrass during the Spring Cycle Agron. J., September 1, 2000; 92(5): 967 - 973. [Abstract] [Full Text]