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Northeast Research Station Watertown, South Dakota Annual Progress Report, 1999, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1999 annual progress report for the Northeast Research Station in Watertown, South Dakota. This report is issued by the South Dakota Agricultural Experiment Station and the South Dakota State University Plant Science Department. This report includes information on the 1999 crop season, including: precipitation summary, crop performance results, canola and flax variety trials, alfalfa production, cool and warm season annual forages, oat research, spring wheat breeding, fertilizer influence on yields, corn and soybean breeding, weed control, oat and spring wheat foliar fungicide trials.

West River Ag Center Crops And Soils Research Annual Progress Report, 1999, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1999 progress report of the West River Crops and Soils Research Projects, South Dakota Agricultural Experiment Station. This document includes reports on: weather and climate, wheat and grain variety trials, management and tillage, and weed and pest control.

Southeast South Dakota Experiment Farm Annual Progress Report, 1999, Agricultural Experiment Station

Agricultural Experiment Station and Research Farm Annual Reports

Crop production was moderate to poor this season. Our climate was mild in terms of temperatures but precipitation was quite erratic. In fact the growing season was both extremely wet and dry. During the first half of the growing season we received 5 inches of rain above normal, and the last half was 4.5 inches below normal. Some fields in our area were too wet to plant or drowned out after planting. Strong wind and hail caused moderate to severe crop damage on July 2. Our last significant precipitation occurred on July 20. After that the rains stopped completely and …

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1999, Agricultural

Agricultural Experiment Station and Research Farm Annual Reports

This document highlights 15 crop and soils research and demonstration projects conducted at the SDSU Central Crops and Soils Research Station at Highmore in 1999. It is published by the South Dakota Agricultural Experiment Station and the Plant Science Department. Reports in this document include information on: 100 years of research at Highmore Research Station, temperature and precipitation data, winter wheat breeding, cereal aphid control in winter wheat, oat research, crop performance results, soybean yields, weed control research.

Sampling Weed Spatial Variability On A Fieldwide Scale, Sharon A. Clay, G. Jason Lems, Frank Forcella, Michael M. Ellsbury, C. Gregg Carlson, David E. Clay

Agronomy, Horticulture and Plant Science Faculty Publications

Site-specific weed management recommendations require knowledge of weed species, density, and location in the field. This study compared several sampling techniques to estimate weed density and distribution in two 65-ha no-till Zea mays–Glycine max rotation fields in eastern South Dakota. The most common weeds (Setaria viridis, Setaria glauca, Cirsium arvense, Ambrosia artemisiifolia, and Polygonum pensylvanicum) were counted by species in 0.1-m2 areas on a 15- by 30-m (1,352 points in each field) or 30- by 30-m (676 points in each field) grid pattern, and points were georeferenced and data spatially analyzed. Using different sampling approaches, weed populations were estimated by …

Influence Of Deleterious Rhizobacteria On Leafy Spurge (Euphorbia Esula) Roots, Mark A. Brinkman, Sharon A. Clay, Robert J. Kremer

Agronomy, Horticulture and Plant Science Faculty Publications

Rhizobacteria have been shown to be phytotoxic to leafy spurge in laboratory assays. This field study investigated the influence of two strains of Pseudomonas fluorescens [Trevisan, (Migula)], deleterious rhizobacteria (DRB), on root weight, root bud number, and root carbohydrate content of leafy spurge at three sites located in northeast and north-central South Dakota. Soils were inoculated with 2 g of starch-based granules containing no bacteria or starch granules containing 108colony-forming units (cfu)/g of either bacterial strain LS102 (Montana origin) or LS174 (South Dakota origin). Bacterial strains were detected on root samples from treated areas. Root weight and root carbohydrate content …

Farm And Home Research: 50-2, Larry Tennyson, Jerry Leslie, Jaimi Reimer, Stephanie Misar

Farm and Home Research

In this Issue:

[Page] 2- Director’s comments

[Page] 3- President’s comments

[Page] 4- ‘Hope’: Edgar McFadden’s legacy: a bountiful harvest and bread for the world

[Page] 8- Break the sell-cheap, buy-high syndrome: State yearly loses millions in wages and other incomes by shipping out raw commodities

[Page] 10- Lessons and labs: Students jump-start their careers by working in SDSU labs

[Page] 12- Our ‘helping hands’ : A salute to technicians, students, secretaries—the research work crew

[Page] 14- Forewarned to forearmed: In climatology, knowing the past is key to predicting the future

[Page] 17- Wheat streak mosaic virus: In normal year, …

Influence Of Crop Rotation, Tillage, And Management Inputs On Weed Seed Production, George O. Kegode, Frank Forcella, Sharon Clay

Agronomy, Horticulture and Plant Science Faculty Publications

Approaches to crop production that successfully reduce weed seed production can benefit farming systems by reducing management inputs and costs. A 5-yr rotation study was conducted in order to determine the effects that interactions between crop rotation, tillage, and amount of herbicide and fertilizer (management inputs) have on annual grass and broad-leaved weed seed production and fecundity. There were 10 crop rotation and tillage system combinations and three levels of management inputs (high, medium, and low). Green and yellow foxtail were the major weed species, and together they yielded between 76 and 93% of collected weed seeds. From 1990 to …

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 1998, Agricultural Experiment Station, Plant Science Department

Agricultural Experiment Station and Research Farm Annual Reports

This is the 1998 progress report for the Central Crops and Soils Research Station at Highmore, South Dakota State College. This document represents the research conducted at the Station during the 1998 crop season including: weather data, alafalfa cultivar yield test, wheat breeding, crop performances trials, fertilizer and soil tests effects on wheat yields, weed control research, cheatgrass control no-till demonstrations, and weed control.