G87-834 Leafy Spurge (Revised February 1989)

Identification and control of leafy spurge, a noxious weed established in about three-fourths of Nebraska\u27s counties, is discussed here. Leafy spurge, (Euphorbia esula L.) introduced to the United States from Eurasia in 1827, has become a troublesome weed in North Dakota, South Dakota, Wyoming, Montana and Nebraska. Leafy spurge is found in about three-fourths of Nebraska\u27s counties. It is most common in the state\u27s northern and eastern areas. Leafy spurge is found primarily on untilled land such as pastures, range, roadsides, woodlands and farmsteads. Leafy spurge is a noxious weed according to the Nebraska Seed Law and the Nebraska Noxious Weed Law

G74-113 A Quick Test for Atrazine Carryover (Revised March 1989)

How can you tell if you have atrazine carryover in your fields? Plants grown in soil samples can tell. Residues of atrazine may remain in the soil and affect some susceptible crops the next year. Crops most often affected include soybeans, field beans, sugarbeets, alfalfa, oats, wheat and many broadleaf horticultural crops. Attempts to predict the extent of carryover and damage to sensitive crops the year following atrazine use have been only partially successful. The rate of atrazine disappearance and, therefore, the amount remaining the next year, is affected by soil texture, pH and organic matter content, as well as atrazine application rate and timing, rainfall, and plant growth the previous year. Chemical analyses for atrazine are complicated, expensive and can be made only in specialized laboratories. In addition, results obtained from chemical analyses do not necessarily reveal whether your crop will be injured

G89-899 Weed Control in No-Till Corn, Grain Sorghum and Soybean Production

Tips for successful no-till weed control, weed control principles for no-till row crop production, and no-till row crops planted into legume or small grain residues are covered here. Soil erosion by wind and water is a strong societal concern in our state and nation. Current estimates are that more than 100 million tons of topsoil are eroded annually in Nebraska, with 75 percent of that coming from row crop areas. Nebraska farmers have been implementing changes in their crop production practices to reduce soil erosion