225 results on '"Halvorson, Ardell D."'
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2. Nutrient–Water Interactions
3. Long-term N fertilization and conservation tillage practices conserve surface but not profile SOC stocks under semi-arid irrigated corn
4. Simulating N2O emissions under different tillage systems of irrigated corn using RZ-SHAW model
5. Lignin biochemistry and soil N determine crop residue decomposition and soil priming
6. Simulating variably-saturated reactive transport of selenium and nitrogen in agricultural groundwater systems
7. Challenges and opportunities for mitigating nitrous oxide emissions from fertilized cropping systems
8. Directed Sampling Using Topography as a Logical Basis
9. Soil Organic Carbon and Nitrogen Sequestration in Irrigated Cropping Systems of the Central Great Plains
10. Agronomic Aspects of Phosphorus Management
11. Terrestrial Carbon Pools: Preliminary Data from the Corn Belt and Great Plains Regions
12. The impact of nitrogen placement and tillage on NO, N 2 O, CH 4 and CO 2 fluxes from a clay loam soil
13. Vertical Distribution of Corn Stover Dry Mass Grown at Several US Locations
14. Quickbird satellite and ground-based multispectral data correlations with agronomic parameters of irrigated maize grown in small plots
15. Nutrient Removal as a Function of Corn Stover Cutting Height and Cob Harvest
16. Greenhouse gas mitigation economics for irrigated cropping systems in northeastern Colorado
17. Tillage and inorganic nitrogen source effects on nitrous oxide emissions from irrigated cropping systems
18. The Impact of Nitrogen Placement and Tillage on NO, N2O, CH4 and CO2 Fluxes from a Clay Loam Soil
19. Management to Reduce Greenhouse Gas Emissions in Western U.S. Croplands
20. Contributors
21. Runoff, soil erosion, and erodibility of Conservation Reserve Program land under crop and hay production
22. Tillage, nitrogen, and cropping system effects on soil carbon sequestration
23. Nitrogen fertilization effects on soil carbon and nitrogen in a dryland cropping system
24. Nitrogen mineralization responses to cropping, tillage, and nitrogen rate in the northern Great Plains
25. Cropping system influences on several soil quality attributes in the northern Great Plains
26. Influence of long-term nitrogen fertilization on crop and soil micronutrients in a no-till maize cropping system
27. Comparison of two soil quality indexes to evaluate cropping systems in northern Colorado
28. Achieving Lower Nitrogen Balance and Higher Nitrogen Recovery Efficiency Reduces Nitrous Oxide Emissions in North America's Maize Cropping Systems
29. Simulating N 2 O emissions under different tillage systems of irrigated corn using RZ-SHAW model
30. Soil Wind Erosion Hazard of Spring Wheat--Fallow as Affected by Long-Term Climate and Tillage
31. Manure and Inorganic Nitrogen Affect Trace Gas Emissions under Semi-Arid Irrigated Corn
32. Limited Irrigation of Corn‐Based No‐Till Crop Rotations in West Central Great Plains
33. Manure and Inorganic Nitrogen Affect Irrigated Corn Yields and Soil Properties
34. Stover Removal Affects No‐Till Irrigated Corn Yields, Soil Carbon, and Nitrogen
35. Nitrogen Source and Rate Effects on Irrigated Corn Yields and Nitrogen‐Use Efficiency
36. Enhanced‐Efficiency Nitrogen Fertilizers: Potential Role in Nitrous Oxide Emission Mitigation
37. Soil Carbon Dynamics for Irrigated Corn under Two Tillage Systems
38. Nitrogen Placement and Source Effects on Nitrous Oxide Emissions and Yields of Irrigated Corn
39. Soil Carbon Changes Influenced by Soil Management and Calculation Method
40. Manure and nitrogen fertilizer effects on corn productivity and soil fertility under drip and furrow irrigation
41. Nitrogen Source Effects on Ammonia Volatilization as Measured with Semi‐Static Chambers
42. Crop Rotation Effect on Soil Carbon and Nitrogen Stocks under Limited Irrigation
43. Nitrogen Source and Placement Effects on Soil Nitrous Oxide Emissions from No-Till Corn
44. Nitrogen Source Effects on Soil Nitrous Oxide Emissions from Strip-Till Corn
45. Nitrogen Fertilization Effects on Irrigated No‐Till Corn Production and Soil Carbon and Nitrogen
46. Nitrogen Fertilizer Effects on Irrigated Conventional Tillage Corn Yields and Soil Carbon and Nitrogen Pools
47. Nitrogen Source Effects on Nitrous Oxide Emissions from Irrigated No‐Till Corn
48. Critical precipitation period for dryland maize production
49. Vertical Distribution of Corn Stover Dry Mass Grown at Several US Locations
50. Crop Management Effects on Crop Residue Production and Changes in Soil Organic Carbon in the Central Great Plains
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