Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

Articles 1 - 6 of 6

Full-Text Articles in Life Sciences

Small Grains And Field Peas: 2006 Variety Recommendations (2005 Crop Performance Results), Cooperative Extension Service, South Dakota State University Dec 2005

Small Grains And Field Peas: 2006 Variety Recommendations (2005 Crop Performance Results), Cooperative Extension Service, South Dakota State University

SDSU Extension Circulars

Variety selection is a fundamental element in a sound crop production program. This report contains variety recommendations, descriptions, and yield data for the spring-seeded small grains – hard red spring wheat, oat, and barley, along with the fall-seeded small grain –hard red winter wheat. Key factors in variety selection include yield, yield stability, maturity, straw strength, height, test weight, quality, and disease resistance. Yield is an important factor; however, a variety with good disease resistance, straw strength, and high grain quality may be more profitable in some cases than the highest yielding variety. Disease resistance information is based on reactions …


Fire-Induced Albedo Change And Its Radative Forcing At The Surface In Northern Austrailia, Y. Jin, David P. Roy Jul 2005

Fire-Induced Albedo Change And Its Radative Forcing At The Surface In Northern Austrailia, Y. Jin, David P. Roy

GSCE Faculty Publications

This paper investigates the impact of fire on surface albedo and the associated radiative forcing over 56% of continental Australia encompassing the fire-prone northern tropical savanna. Fire-affected areas and albedos are derived for the 2003 fire season using daily Moderate Resolution Imaging Spectroradiometer (MODIS) surface reflectance data. Near-infrared and total shortwave albedos are observed to generally decrease after fire occurrence. Regionally, the total shortwave albedo drops by an average of 0.024, with increasing reductions as the dry season progresses and larger reductions in grasslands than woody savannas. These fire-induced albedo changes exert a positive forcing at the surface that increases …


South Dakota Agricultural Land Market Trends: 1991-2005, Larry Janssen, Erik Gerlach, Burton Plueger May 2005

South Dakota Agricultural Land Market Trends: 1991-2005, Larry Janssen, Erik Gerlach, Burton Plueger

Agricultural Experiment Station Circulars

Agricultural land values and cash rental rates in South Dakota, by region and by state, are the primary topics of this report. Target audiences are farmers and ranchers, landowners, agricultural professionals (lenders, rural appraisers, professional farm managers), and policy makers interested in agricultural land market trends. This report contains the results of the 2005 SDSU South Dakota Farm Real Estate Market Survey, the 15th annual SDSU survey developed to estimate agricultural land values and cash rental rates by land use in different regions of South Dakota.


2005 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University Mar 2005

2005 Little International Agricultural Exposition Catalog, Little International Agricultural Exposition South Dakota State University

Little International Agricultural Exposition Catalogs

No abstract provided.


How To Calculate Machinery Ownership And Operating Costs, Burton Pflueger Feb 2005

How To Calculate Machinery Ownership And Operating Costs, Burton Pflueger

SDSU Extension Circulars

Machinery ownership and operating costs represent a substantial portion of total production expenses for South Dakota producers. Production practices today require increasingly specialized machinery and equipment and producers have to give more attention to the economics of their machinery investment alternatives. Large amounts of capital are invested in owning and operating farm machinery. Producers need to take time to manage their machinery investment to insure that they are achieving the desired return and efficiency. Machinery costs make up a significant part of the fixed and variable costs of any farm operation. However, they are sometimes difficult to calculate, particularly for …


Fertilizer Recommendations Guide, Jim Gerwig, Ron Gelderman Jan 2005

Fertilizer Recommendations Guide, Jim Gerwig, Ron Gelderman

SDSU Extension Circulars

South Dakota State University Soil Testing Lab fertilizer recommendations are based on field research in South Dakota and neighboring states. However, information from outside this region is used where only limited local data was available. The tables were developed as part of continuing cooperation between these states to standardize recommendations across the three-state area. The recommendations in the tables are generated by equations and, therefore, change consistently across yield goals and soil test levels. Due to space limitations, only the recommendations for selected yield goals and the soil test level at the center of each soil test range (very low, …