Search National Agricultural Library Digital Collections

You searched for:

Subjects Triticum aestivum Remove constraint Triticum aestivum: Triticum aestivum Subjects clay loam soils Remove constraint clay loam soils: clay loam soils Authors Unger, P.W. Remove constraint Unger, P.W.: Unger, P.W.

Displaying all 6 items start over

1. Evaporation reduction from soil with wheat, sorghum, and cotton residues

Description:: Includes references.
Author:: Unger, P.W. , Parker, J.J.
Subject:: crop residues , Triticum aestivum , wheat , Sorghum bicolor , grain sorghum , Gossypium hirsutum , cotton , soil water content , evaporation , soil water storage , clay loam soils
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 1976

2. 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

3. 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

4. Seedbed surface geometry effects on soil crusting and seedling emergence

Description:: Includes references
Author:: Baumhardt, R.L. , Unger, P.W. , Dao, T.H.
Subject:: seedbeds , topography , soil crusts , seedling emergence , Sorghum bicolor , grain sorghum , Zea mays , corn , Helianthus annuus , Triticum aestivum , wheat , soil temperature , clay loam soils , rainfall simulators , rain , infiltration (hydrology)
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2004

5. 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

6. Surface soil physical properties after 36 years of cropping to winter wheat

Description:: 19 ref.
Author:: Unger, P.W.
Subject:: Triticum aestivum , winter wheat , continuous cropping , dryland farming , clay loam soils , tillage , cropping systems , soil aggregates , aggregate stability , soil organic matter , soil mechanical properties , soil penetration resistance , bulk density , Texas
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 1982