Extraction of subsoil nitrogen by alfalfa, alfalfa-wheat, and perennial grass systems

Agronomy Journal

Volumn 93, Issue 3, 2001, Pages 495-503

  Entz, M H ^a   Bullied, W J ^a   Forster, D A ^a   Gulden, R ^a   Vessey, J K ^a  

^a UNIVERSITY OF MANITOBA   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

AGRONOMY; CROPS; EXTRACTION; SOILS;

ANNUAL ROTATIONS;

NITROGEN;

AGROPYRON; AGROPYRON SMITHII; ANDROPOGON; ANDROPOGON GERARDII; HORDEUM; HORDEUM VULGARE; HORDEUM VULGARE SUBSP. VULGARE; MEDICAGO SATIVA; PASCOPYRUM SMITHII; PISUM SATIVUM; SATIVUM; TRITICUM AESTIVUM;

EID: 0034970770     PISSN: 00021962     EISSN: None     Source Type: Journal    
DOI: 10.2134/agronj2001.933495x     Document Type: Article

References (42)

1. Effects of root growth and decay on the permeability of a synthetic sandy soil
2. Subsoil nitrate uptake and symbiotic dinitrogen fixation by alfalfa
3. Nitrogen movement in undisturbed profiles of fallowed soils
4. Influence of soil macroporosity on environmental quality
5. Effect of cropping, summerfallow, and fertilizer nitrogen on nitrate-nitrogen lost by leaching on a Brown Chernozemic loam
6. Nitrate leaching in a Udic Haploboroll as influenced by fertilization and legumes
7. Effect of a wheat-summer-fallow rotation on subsoil nitrate
8. Nitrate leaching as influenced by fertilization in the Brown soil zone
9. Changes in level of soil nitrogen under various crops on a Brigalow clay soil
10. Measurement of near surface soil moisture with a hydrogenously shielded neutron probe
11. The movement of nitrate fertilizer from the soil surface to drainage waters by preferential flow in weakly structured soils
12. Amelioration of soil by natural processes
13. Physical assessment of a soil with respect to rooting potential
14. From hoes to herbicides: Agriculture and ground water quality
15. Fate of legume and fertilizer nitrogen-15 in a long-term cropping systems experiment
16. Nitrogen utilization from fertilizer and legume residues in legume-corn rotations
17. Effect of alfalfa and grasses on yield of subsequent wheat crops and some chemical properties of a gray wooded soil
18. Recovery of deep-point injected soil nitrogen-15 by switchgrass, alfalfa, ineffective alfalfa, and corn
19. Long-term influence of cropping systems, tillage methods, and N sources on nitrate leaching
20. Nitrogen balance of legume-wheat cropping sequences
21. Nitrogen: Inorganic forms
22. Nitrate-nitrogen removal from soil profiles by alfalfa
23. Changes in infiltration under alfalfa as influenced by time and wheel traffic
24. Plant-available N supply as affected by method and timing of alfalfa termination
25. Influence of crop management practices on nutrient movement below the root zone in Nebraska soils
26. Nitrogen transport processes in soil
27. Fertilizer nitrogen and crop rotation in relation to movement of nitrate nitrogen through soil profiles
28. Alternative production systems to reduce nitrates in ground water
29. Alfalfa and the nitrogen cycle in the Corn Belt
30. Nitrate-nitrogen leached below the root zone during and following alfalfa
31. Use of deeply rooted perennial forage legumes for subsoil nitrate removal
32. Nitrate-N accumulation in the soil profile under alfalfa
33. Decreases over seven years in subsoil nitrate in a Vertisol with grain sorghum and grass
34. Agriculture's effect on nitrate pollution of groundwater
35. Residual soil nitrogen as affected by continuous, two-year, and four-year crop rotation systems
36. Management of alfalfa to conserve soil moisture
37. Nitrate and water present in and flowing from root-zone soil