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1. Aggregation of soil cropped to dryland wheat and grain sorghum

Description:
Includes references
Author:
Unger, P.W. , Jones, O.R. , McClenagan, J.D. , Stewart, B.A. , Soil Science Society of America.
Subject:
Mollisols , semiarid soils , soil management , stubble mulching , no-tillage , Triticum aestivum , Sorghum bicolor , fallow , crop rotation , dryland farming , soil water , water conservation , erosion control , soil conservation , soil aggregates , soil aggregation , soil water storage , Texas
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1998

2. Alternative and opportunity dryland crops and related soil conditions in the southern Great Plains

Description:
Includes references
Author:
Unger, P.W.
Subject:
Triticum aestivum , Sorghum bicolor , Brassica napus , Hibiscus cannabinus , triticale , crop rotation , water conservation , cropping systems , crop yield , soil water content , protein content , mortality , forage , soil fertility , diameter , bulk density , soil aggregates , Texas
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2001

3. Long-term tillage and cropping systems affect bulk density and penetration resistance of soil cropped to dryland wheat and grain sorghum

Description:
Includes references
Author:
Unger, P.W. , Jones, O.R.
Subject:
agricultural soils , bulk density , soil penetration resistance , resistance to penetration , stubble mulching , minimum tillage , no-tillage , dryland farming , Triticum aestivum , Sorghum bicolor , clay loam soils , crop rotation , slope , depth , soil water content , soil strength , dry environmental conditions , regression analysis , equations , Great Plains region
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1998

4. Nitrates in soil after long-term management for dryland grain sorghum and winter wheat

Description:
Includes references
Author:
Unger, P.W.
Subject:
Sorghum (Poaceae) , winter wheat , Triticum aestivum , Sorghum bicolor , crop rotation , continuous cropping , long term experiments , no-tillage , stubble mulching , tillage , clay loam soils , soil fertility , nitrate nitrogen , fields , dryland farming , nitrogen fertilizers , fallow , Texas
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
2000

5. Ridge height and furrow blocking effects on water use and grain yield

Description:
Includes references.
Author:
Unger, P.W.
Subject:
Triticum aestivum , Sorghum bicolor , crop rotation , water conservation , water use , height , furrows , no-tillage , conservation tillage , soil water content , crop yield , Texas
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1992

6. Soil bulk density, penetration resistance, and hydraulic conductivity under controlled traffic conditions

Description:
Includes references
Author:
Unger, P.W.
Subject:
bulk density , soil penetration resistance , hydraulic conductivity , controlled traffic systems , soil water content , soil organic matter , no-tillage , crop residue management , tillage , Triticum aestivum , wheat , Sorghum bicolor , grain sorghum , crop rotation , irrigation , furrows , clay loam soils , Texas
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1996

7. Soil hydraulic conductivity and retention curves from tension infiltrometer and laboratory data

Description:
Includes references
Author:
Evett, S.R. , Peters, F.H. , Jones, O.R. , Unger, P.W.
Subject:
infiltrometers , infiltration (hydrology) , soil hydraulic properties , soil water characteristic , hydraulic conductivity , bulk density , no-tillage , stubble mulching , conventional tillage , crop rotation , Triticum aestivum , wheat , Sorghum bicolor , grain sorghum , fallow , long term experiments , soil water content , saturated hydraulic conductivity , Texas
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1999

8. Tillage and cropping system effects on selected conditions of a soil cropped to grain sorghum for twelve years

Description:
Includes references
Author:
Alemu, G. , Unger, P.W. , Jones, O.R.
Subject:
dryland farming , crop production , Sorghum bicolor , Triticum aestivum , fallow , continuous cropping , crop rotation , no-tillage , stubble mulching , crop residues , soil organic matter , semiarid soils , soil aggregates , soil aggregation , Texas , New Mexico , Oklahoma
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1997

9. Tillage and residue effects on wheat, sorghum, and sunflower grown in rotation

Description:
Includes 22 references.
Author:
Unger, P.W.
Subject:
Triticum aestivum , wheat , Sorghum bicolor , grain sorghum , Helianthus annuus , crop rotation , tillage , no-tillage , rotary tillage , discing , plowing , grain yield , soil water content , soil water storage , irrigated farming , dryland farming , crop residues , crop residue management , harvest date , Texas
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Year:
1984