Crop yield and economic profitability, both highly dependent on local crop management, soil characteristics, weather conditions, are among the most influential factors to consider when considering a cropping system. The objective of this study was compare returns three different 4-yr diverse rotations with that 2-yr traditional rotation in eastern South Dakota. included were (a) corn (Zea mays ...

The most damaging insect pests are those that attack the pods and result in either damage or contamination of the processed product. The European corn borer (ECB) and to a lesser extent the corn earworm (CEW) are the major pod feeding pests with damage primarily from 2 generation ECB and late flights of CEW in August/September. Damage from both species occurs from flowering to harvest, creating...

The relative suitability of potato and crops frequently grown in rotation with potato as hosts for Pratylenchus penetrans was evaluated. Suitability of rye, wheat, corn, oat, sorgho-sudangrass, and potato were compared in pot studies based on ratios of final population : initial population density and densities of nematodes in roots at harvest. Population densities increased more on potato, oat...

Management systems influence soil quality over time. A study was carried out on Vanmeter farm of the Ohio State University South Centers at Piketon Ohio, USA to evaluate the impact of crop rotations on soil quality from 2002 to 2007. The crop rotations comprised of continuous corn (CC), corn-soybean (CS) and corn–soybean-wheat-cowpea (CSW). Ten soil cores were collected at 0-7.5, 7.5-15, 15-22....

Corn rootworms (Chrysomelidae: Diabrotica spp.) are widespread maize (Zea mays L.) pests that can cause economic damage by consuming plant tissues, thus negatively affecting plant physiology and function (Riedell 1990; Riedell and Reese 1999), and grain yield (Sutter et al. 1990; Spike and Tollefson 1991). The majority of plant damage is caused by the subterranean larval stages, which can also ...