Education Commons^™

G92-1071 Ridge Plant Systems: Weed Control, Robert N. Klein, Gail A. Wicks, Alex Martin, Russell S. Moomaw, Fred Roeth, Robert G. Wilson, Paul J. Jasa

University of Nebraska-Lincoln Extension: Historical Materials

Advantages and disadvantages of the ridge plant system, weed control before and at planting and economics of the system are discussed. Ridge planting combines tillage and herbicides to achieve improved weed control in row crops. Crop seed is planted into ridges formed during cultivation and/or ditching of the previous crop. In ridge planting, the planter follows the old row and ridge clearing sweeps or disks move the surface soil, residue and much of the weed seed out of the row. Weed seeds are deposited between the rows where, upon germination, they can be controlled with cultivation. Two cultivations are generally …

G92-1115 Corn Quality For Industrial Uses, David S. Jackson

University of Nebraska-Lincoln Extension: Historical Materials

Characteristics of corn used by industry are discussed here. Publications frequently refer to the term "Corn Quality," but this term means little without being placed in context. The Official U.S. Standards for Grain defines Corn Quality for typical marketing transactions involving grain marketed in the United States. It rates corn quality based on purity, color, the amount of broken and foreign material, total numbers of damaged kernels (including heat-damaged, sprouted, frosted, weather or ground damaged, moldy, diseased), heat-damaged kernels, stones, moisture, and test weight. Official standards, however, are only useful as general indicators of grain quality.

G92-1098 Cultivators For Conservation Tillage, Robert D. Grisso, Paul J. Jasa

University of Nebraska-Lincoln Extension: Historical Materials

Cultivating residue-covered fields and ridge-till considerations are among the topics covered here.

In any conventional, conservation or no-tillage planting system, crop cultivation can be an excellent method of weed control. Cultivators used in residue-covered fields must allow residue to flow through the implement without clogging.

Extra penetration force may be required to cultivate no-till fields as compared to tilled fields. While many high-clearance cultivators are designed to handle conservation tillage conditions, some older cultivators can be modified to work in residue-covered fields when residue flow and soil penetration are maintained.

Combining mechanical and chemical weed control is economical and effective …

G92-1076 Canola Production, Lenis Alton Nelson, Alan Grombacher

University of Nebraska-Lincoln Extension: Historical Materials

Canola, which produces a vegetable oil low in saturated fat, has potential for becoming an alternative crop for Nebraska agriculture. Canola produces an oil that has the lowest saturated fat content of any vegetable oil. Today, there is an increasing demand for this oil by diet-conscious consumers. In 1985, the U.S. Food and Drug Administration (FDA) recognized rapeseed and canola as two different species, based on their content and uses. Rapeseed oil is used in industry, while canola oil is used for human consumption. High erucic acid rapeseed (HEAR) oil contains 22-60 percent erucic acid, while low erucic acid rapeseed …

G92-1097 Root And Crown Rot: Winterkill Complex Of Winter Wheat, John E. Watkins, Ben Doupnik, Jr., Eric D. Kerr, Robert N. Klein

University of Nebraska-Lincoln Extension: Historical Materials

Root and crown rot--winterkill complex is discussed, including nature of the complex, symptoms, control, and management rationale. Root and crown rot of winter wheat is an interrelated disease complex caused by the interaction of infection of roots and crowns by Bipolaris sorokiniana and/or Fusarium graminearum and harsh winter conditions. It is an insidious, persistent and inconspicuous disease complex that reduces wheat yields each year. In extreme cases, entire fields or large areas within fields are killed. The ultimate effect is loss of stands, poor plant vigor, reduced yield and lower grain quality.

G92-1103 White Mold Of Dry Beans, James R. Steadman, Howard F. Schwartz, Eric D. Kerr

University of Nebraska-Lincoln Extension: Historical Materials

White mold symptoms, infection and control are covered here.

One of the most important diseases affecting dry beans in western Nebraska and Colorado is white mold caused by the fungus Sclerotinia sclerotiorum. In a recent year, losses from this disease averaged as high as 20 percent, with a few individual field losses exceeding 65 percent.