Soybean (Glycine max. L. Merr.) plants were grown in an experiment with a 3 x 3 factorial design using different levels of light (170, 350, and 700 muE.m(-2).s(-1)) and P as factors. Plants were grown in a greenhouse in pot cultures using a soil low in plant-available P under three P regimes: no additional P, P added as KH(2)PO(4), or P uptake enhanced by colonization of the host plant with the...

An agricultural drought risk-assessment model was developed for Nebraska, USA, for corn and soybeans on the basis of variables derived from the standardized precipitation index and crop-specific drought index using multivariate techniques. This model can be used to assess real-time agricultural drought risk for specific crops at critical times before and during the growing season by retaining p...

Eight mature dogs (19.3 +/- 0.1 kg) were used in an experiment to compare the effects of feeding soybeans containing low concentrations of oligosaccharides and phytate on nutrient availability in complete foods fed to dogs. All foods were formulated to be isonitrogenous and contained low-oligosaccharide, low-phytate soybean meal (LLM); conventional soybean meal (SBM); low-oligosaccharide, low-p...

We develop a new partial equilibrium, four-region world trade model for the soybean complex comprising soybeans, soybean oil, and soybean meal. In the model, some consumers view genetically modified Roundup Ready (RR) soybeans and products as weakly inferior to conventional ones; the RR seed is patented and sold worldwide by a U.S. firm; and producers employ a costly segregation technology to s...

Materials and Methods Varieties selected for the 2003 organic soybean variety trial included the following: IA3011, IA3021, IA3022, Pioneer 9305, Schillinger 240F.Y, and Schillinger 290F.HP. Plots measuring 20 × 40 feet were laid out in a completely randomized block design with four replications of each variety. Soybeans were planted at a depth of 2 inches on May 28, 2003, at a rate of 200,000 ...