Agronomy Journal
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Published in Agron J 91:950-955 (1999)
© 1999 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
This Article
Right arrow Abstract Freely available
Right arrow Full Text Free
Right arrow Full Text (PDF) Free
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Web of Science (7)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Rozas, H. S.
Right arrow Articles by Andrade, F. H.
Right arrow Search for Related Content
PubMed
Right arrow Articles by Rozas, H. S.
Right arrow Articles by Andrade, F. H.
Agricola
Right arrow Articles by Rozas, H. S.
Right arrow Articles by Andrade, F. H.
Related Collections
Right arrow Maize
Right arrow Nutrient Management
Right arrow Soil Chemistry
Right arrow Tillage

No-Till Maize Nitrogen Uptake and Yield

Effect of Urease Inhibitor and Application Time

Hernán Sainz Rozasa, Hernán E. Echeverríaa, Guillermo A. Studderta and Fernando H. Andradea

a Fac. de Ciencias Agrarias (UNMP), Est. Exp. Agropecuaria Balcarce (INTA), Unidad Integrada Balcarce, C.C. 276, (7620) Balcarce, Buenos Aires, Argentina



View larger version (28K):

[in a new window]
  		Fig. 1 Ammonia N losses for urea fertilization at maize planting in (a) 1994 and (c) 1995 and at V6 in (b) 1994 and (d) 1995. Legend: 0-N, control; 70, 140, 210 kg N ha-1; +I, urea with urease inhibitor nBTPT. Error bars indicate LSD (P <= 0.05)

 


View larger version (35K):

[in a new window]
  		Fig. 2 Soil mineral N content at the 0- to 60-cm depth during (a) 1994–1995, (b) 1995–1996, and (c) 1996–1997 growing seasons, for urea fertilization at maize planting (P) and at V6. Legend: 0-N, control; 35, 70, 140, 210 kg N ha-1; +I, urea with urease inhibitor nBTPT; V6, six-leaf stage; PF, 15 d before flowering; F, flowering; PM, physiological maturity. Error bars indicate LSD (P <= 0.05); thin bars are for comparing N levels and thick bars are for comparing N level x time or N level x presence of inhibitor interactions

 


View larger version (29K):

[in a new window]
  		Fig. 3 NH+4–N and NO-3–N content at the 0- to 10-cm depth during the 1996–1997 growing season for urea fertilization at maize planting (P) and at V6. Legend: 0-N, control; 70, 210 kg N ha-1; +I, urea with urease inhibitor nBTPT. Error bars indicate LSD (P <= 0.05)

 




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
Copyright © 1999 by the American Society of Agronomy.