| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Dep. of Soil Science, 1525 Observatory Dr., Univ. of Wisconsin, Madison, W153706-1299
* Corresponding author.
Soil tests for residual NO-3 can improve prbdiction of crop N fertilizer requirements in the humid Midwest, but their adoption as a standard procedure in fertilizer N recommendation programs depends on the frequency of significant profile NO-3-N carryover. Data from a 25-yr crop sequence experiment (1967 to 1991) on a Rozetta silt loam soil (finesilty, mixed, mesic Typic Hapludalf) at Lancaster, WI, were used to estimate the frequency and extent of N fertilizer carryover. Sequences studied included unfertilized oat (Avena sativa L.) grown after corn (Zea mays L.) that received a range of N rates. Oat yields were influenced by the residual effects of the previous year's N application in 21 of the 25 yr, with yield responses varying from 500 to 1500 kg ha–1. Soil profile measurements (0 to 90 cm) taken before seeding oat in spring 1987 through 1991 showed substantial NO-3-N carryover that was usually found below the 30-cm depth. Significant increases in profile NO-3-N content occurred at low N rates (56 to 112 kg N ha–1) in years with limited rainfall during the preceding corn growing season, but only at higher N rates under optimum corn growing conditions. Total N uptake by oat was also significantly affected by corn N treatments, and it was well correlated with profile NO-3-N. A nutrient efficiency index that characterized the yield response of oat to profile NO-3-N was used to estimate carryover NO-3-N from 1967 to 1986 oat yield data. Expected N fertilizer carryover values (P = 80%) ranged from 32 to 106 for a 168 kg N ha–1 rate, and from 63 to 151 kg NO-3-N for a 224 kg N ha–1 rate. The wide variation of expected amounts of N carryover reflects typical year-to-year changes in conditions affecting N recovery by corn and retention by soil. Results of this study indicate that significant residual profile NO-3-N occurs in most years on well-drained silt loam soils in Wisconsin, and that year-specific tests for profile NO-3-N are needed to adjust N recommendations for varying amounts of NO-3-N carryover.
Received for publication June 18, 1993.
This article has been cited by other articles:
|
|
 |
|
  T. F. Stanger and J. G. Lauer Corn Grain Yield Response to Crop Rotation and Nitrogen over 35 Years Agron. J., May 7, 2008; 100(3): 643 - 650. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. F. Stanger, J. G. Lauer, and J.-P. Chavas The Profitability and Risk of Long-Term Cropping Systems Featuring Different Rotations and Nitrogen Rates Agron. J., January 11, 2008; 100(1): 105 - 113. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. O. Adigbo, K. A. Okeleye, and V. B. Adigbo Performance of Upland Rice Fitted into Lowland Rice-Vegetable/Cowpea Sequence in Rainfed Inland Valley Agron. J., February 6, 2007; 99(2): 377 - 383. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. L. Karlen, E. G. Hurley, S. S. Andrews, C. A. Cambardella, D. W. Meek, M. D. Duffy, and A. P. Mallarino Crop Rotation Effects on Soil Quality at Three Northern Corn/Soybean Belt Locations Agron. J., April 11, 2006; 98(3): 484 - 495. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. M. Burner and C. T. MacKown Nitrogen Effects on Herbage Nitrogen Use and Nutritive Value in a Meadow and Loblolly Pine Alley Crop Sci., March 27, 2006; 46(3): 1149 - 1155. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
D. M. Burner and C. T. MacKown Herbage Nitrogen Recovery in a Meadow and Loblolly Pine Alley Crop Sci., August 1, 2005; 45(5): 1817 - 1825. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 M. T. Rashid and R. P. Voroney Field-Scale Application of Oily Food Waste and Nitrogen Fertilizer Requirements of Corn at Different Landscape Positions J. Environ. Qual., April 20, 2005; 34(3): 963 - 969. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
M. T. Rashid and R. P. Voroney Recycling Soil Nitrate Nitrogen by Amending Agricultural Lands with Oily Food Waste J. Environ. Qual., September 1, 2003; 32(5): 1881 - 1886. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. J. Kucharik and K. R. Brye Integrated BIosphere Simulator (IBIS) Yield and Nitrate Loss Predictions for Wisconsin Maize Receiving Varied Amounts of Nitrogen Fertilizer J. Environ. Qual., January 1, 2003; 32(1): 247 - 268. [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 | |||
