| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
|
|
|
|||||||
|
|||||||||
Washington State Univ., Puyallup Res. and Ext. Cent., 7612 Pioneer Way East, Puyallup, WA 98371-4998
* Corresponding author (skuo{at}wsu.edu)
Received for publication November 7, 2000. Removing cover crop top growth in the spring for forage or to prevent incorporation problems is one management option. The effects of this residue management on soil quality and productivity need to be determined. This study, conducted from 1994 to 1998 at Puyallup, WA, determined effects of various winter cover crops and residue management on soil N availability, soil C and N, and corn (Zea mays L.) yield. Included in the study were monocultures of rye (Secale cereale L.), ryegrass (Lolium multiflorum Lam), and vetch (Vicia villosa Roth subsp. villosa) and biculture of vetch and rye or ryegrass. Each year, the cover crops were seeded in the fall and incorporated into, or removed from, the soil in the spring. Average top-growth biomass was higher for the bicultures than for the monocultures. Total N accumulation was generally greatest under vetch, followed by the bicultures, and lowest for the monocultured rye or ryegrass. Whereas removing top growth of monocultured vetch or bicultures depressed presidedress soil NO3–N (Ni), the effect was generally not found for monocultured rye or ryegrass. Corn yields were affected by amounts of Ni and N fertilizer applied (r2 > 0.789), irrespective of cover crop species and residue management. Removing top growth of the cover crops limited residue C input and reduced soil organic C and N after 5 yr. Soil organic C and N accumulation, as well as increasing soil C sequestration to reduce CO2 release into atmosphere, should be considered when deciding which residue management option to choose.
Abbreviations: Nf, amount of nitrogen fertilizer applied • Ni, amount of presidedress soil nitrate-nitrogen • Nt, total amount of nitrogen available to corn
This article has been cited by other articles:
|
|
 |
|
  L. Zotarelli, L. Avila, J. M. S. Scholberg, and B. J. R. Alves Benefits of Vetch and Rye Cover Crops to Sweet Corn under No-Tillage Agron. J., February 4, 2009; 101(2): 252 - 260. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
B. Kramberger, B. Lukac, D. Gruskovnjak, and A. Gselman Effects of Italian Ryegrass and Date of Plow-In on Soil Mineral Nitrogen and Sugarbeet Yield and Quality Agron. J., August 11, 2008; 100(5): 1332 - 1338. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 K. V. Dhima, I. B. Vasilakoglou, I. G. Eleftherohorinos, and A. S. Lithourgidis Allelopathic Potential of Winter Cereals and Their Cover Crop Mulch Effect on Grass Weed Suppression and Corn Development Crop Sci., January 24, 2006; 46(1): 345 - 352. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
F. E. Miguez and G. A. Bollero Review of Corn Yield Response under Winter Cover Cropping Systems Using Meta-Analytic Methods Crop Sci., September 23, 2005; 45(6): 2318 - 2329. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
U. M. Sainju, W. F. Whitehead, and B. P. Singh Biculture Legume-Cereal Cover Crops for Enhanced Biomass Yield and Carbon and Nitrogen Agron. J., September 19, 2005; 97(5): 1403 - 1412. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. W. Andraski and L. G. Bundy Cover Crop Effects on Corn Yield Response to Nitrogen on an Irrigated Sandy Soil Agron. J., July 13, 2005; 97(4): 1239 - 1244. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Delate and C. A. Cambardella Agroecosystem Performance during Transition to Certified Organic Grain Production Agron. J., September 1, 2004; 96(5): 1288 - 1298. [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 | |||
