The concept of the soil phosphorus storage capacity (SPSC) was successfully used to evaluate (P) loss risk and P retention acidic soil. This study extended SPSC from neutral or alkaline A total 95 surfaces (0-10 cm) samples were collected Yellow River Delta (YRD) for use in this study. Batch sorption experiments, correlation analysis, stepwise regression, a split-line model calculate threshold ...

It is well known that the administration of acids or of potentially acid salts, such as ammonium chloride, to animals often leads to decalcification. Apparently several factors are involved, such as the age of the animal, the calcium intake, and the disturbance in the acid-base equilibrium. Burns (1) fed hydrochloric acid to rabbits and rats and found that it retarded growth, increased the wate...

It is well known that the administration of acids or of potentially acid salts, such as ammonium chloride, to animals often leads to decalcification. Apparently several factors are involved, such as the age of the animal, the calcium intake, and the disturbance in the acid-base equilibrium. Burns (1) fed hydrochloric acid to rabbits and rats and found that it retarded growth, increased the wate...

Karst landscapes are often perceived as highly vulnerable to agricultural phosphorus (P) loss, via solution-enlarged conduits that bypass P retention processes. Although attenuation of P concentrations has been widely reported within karst drainage, the extent to which this results from hydrological dilution, rather than P retention, is poorly understood. This is of strategic importance for und...

Recombinant human methionyl growth hormone (Protropin) (Genetech, Inc., San Francisco, CA) administered to normal volunteers receiving hypocaloric parenteral nutrition minimized weight loss and induced positive nitrogen balance. To evaluate whether growth hormone (GH) can promote anabolism in surgical patients, 11 stable malnourished individuals were studied. In the initial trial, subjects rece...

in this research, an experimental study to evaluate nutrient removal from synthetic wastewater by a lab-scale moving bed biofilm process was investigated. also, kinetic analysis of the process with regard to phosphorus and nitrogen removal was studied with different mathematical models. for nutrient removal, the moving bed biofilm process was applied in series with anaerobic, anoxic and aerobic...

A six wk feeding experiment was conducted with d-old four hundred broiler chicks (Ven Cobb) to determine the effects of microbial phytase (Allzyme) supplementation in soybean meal based broiler diet containing low phosphorous. These birds were randomly divided into four dietary treatment groups of 100 broilers each. Each treatment group was further sub-divided into five replicates of 25 broiler...

1. Agriculture is a major contributor of non-point source pollution to surface waters in the midwestern United States, resulting in eutrophication of freshwater aquatic ecosystems and development of hypoxia in the Gulf of Mexico. Agriculturally influenced streams are diverse in morphology and have variable nutrient concentrations. Understanding how nutrients are transformed and retained within ...