Residual herbicides used in the production of soybean [Glycine max (L.) Merr] and corn (Zea mays L.) are often detected in surface runoff at concentrations exceeding their maximum contaminant levels (MCL) or health advisory levels (HAL). With the advent of transgenic, glyphosate-tolerant soybean and glufosinate-tolerant corn this concern might be reduced by replacing some of the residual herbic...

In the US Corn Belt, a recent doubling in commodity prices has created incentives for landowners to convert grassland to corn and soybean cropping. Here, we use land cover data from the National Agricultural Statistics Service Cropland Data Layer to assess grassland conversion from 2006 to 2011 in the Western Corn Belt (WCB): five states including North Dakota, South Dakota, Nebraska, Minnesota...

Mississippi Delta cotton (Gossypium hirsutum L.) production in rotation with corn (Zea mays L.) was evaluated in field experiments from 2000 to 2005 at Stoneville, Mississippi. Plots maintained under minimum tillage were established in 2000 on a Dundee silt loam with treatments including continuous cotton or corn and alternate cotton-corn rotations. Mineralization and dissipation of 14C [ring]-...

in order to study crop rotation, chemical control and their interactions on weeds density of wheat fields, an experiment was conducted in a split plot arrangement in randomized complete block design with three replications in gorgan agricultural research station for five years. in this study, 10 rotational crops: canola, fababean, barley, white pea, soybean, cotton, maize, sorghum, millet and w...

comparative advantage of corn in comparison with other competing crops was investigated applying linear programming, to 2004-2005 data related to classic index (drc) in khuzestan. results showed that corn benefits from a comparative advantage in all cities of khuzestan province with acreage having been increased in the cultivation pattern of 37.5 % of the cities. in addition, comparing optimal ...

Glyphosate-resistant (GR) volunteer corn is a significant problem weed in soybean grown in rotation with corn in the midwestern United States and eastern Canada. The objective of this study was to evaluate the efficacy of glufosinate applied in single or sequential applications compared with acetylcoenzyme A carboxylase (ACCase) inhibitors applied alone or tank mixed with glufosinate for contro...

This paper aimed to evaluate the productivity of corn crop for silage, beans and straw production in different rotation systems with spring/summer fall/winter green manures cultivated under agroecological management. The experiment was implemented a rural property managed an system since 2009, 2017/18 2018 crops. experimental design used randomized blocks, five repetitions. treatments consisted...

this paper is aimed at an identification of a farmer's sustainable activities and factors affecting sustainable behavior of farmers. a survey was conducted using a stratified random sampling method to collect data from 370 corn producers in khuzestan province. validity and reliability of the questionnaire was tested and data were analyzed using spss software. based upon the results, it was...

The western corn rootworm (WCR; Diabrotica virgifera virgifera LeConte) is an important chrysomelid pest of corn (Zea mays) in the US. WCR larvae feed on corn roots, while adult beetles may consume aboveground corn tissues. WCR larvae are nutritionally dependent on corn roots; completion of the univoltine WCR lifecycle relies on the nearby availability of root tissues for the larvae. Close acce...