Search National Agricultural Library Digital Collections

You searched for:

Year 2003 Remove constraint 2003: 2003 Subjects Triticum aestivum Remove constraint Triticum aestivum: Triticum aestivum Subjects developmental stages Remove constraint developmental stages: developmental stages

Displaying all 3 items start over

1. Damage potential of grasshoppers (Orthoptera: Acrididae) on early growth stages of small-grains and canola under subarctic conditions

Description:: Includes references
Author:: Begna, S.H. , Fielding D.J.
Subject:: Melanoplus sanguinipes , Hordeum vulgare , Avena sativa , Triticum aestivum , Brassica napus var. napus , barley , oats , wheat , canola , population density , crop damage , developmental stages , aerial parts , underground parts , plant growth , dry matter accumulation , plant morphology , carbon nitrogen ratio , grasshoppers , insect pests , cold zones
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2003

2. Fixed precision sequential sampling plans for the greenbug and bird cherry-oat aphid (Homoptera: Aphididae) in winter wheat

Description:: Includes references
Author:: Elliott, N.C. , Giles, K.L. , Royer, T.A. , Kindler, S.D. , Tao, F.L. , Jones, D.B. , Cuperus, G.W.
Subject:: Schizaphis graminum , Rhopalosiphum padi , population density , estimation , sampling , precision , pest monitoring , Aphidoidea , insect pests , Triticum aestivum , winter wheat , cultivars , developmental stages , geographical variation , Oklahoma
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2003

3. Quantitative approaches for using color infrared photography for assessing in-season nitrogen status in winter wheat

Description:: Includes references
Author:: Flowers, M. , Weisz, R. , Heiniger, R.
Subject:: Triticum aestivum , winter wheat , varieties , growing season , nitrogen content , color , aerial photography , infrared photography , remote sensing , image analysis , spectral analysis , nitrogen fertilizers , fertilizer application , nutrient use efficiency , nutrient uptake , developmental stages , soil types , conventional tillage , no-tillage , planting date , row spacing , sowing , regression analysis , linear models , North Carolina
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2003