A hydroponic system was developed and used for purification of an anaerobically treated dairy manure and production of forage crops. The effect of light duration, seeding rate and wastewater application rate on the crop yield and pollution potential reduction were studied. The results indicated that a wheat forage crop can be produced in 21 days from germination to harvest in this system and re...

An understanding of the long-term cycling of trace elements in soil with broiler litter fertilization under various forage utilization strategies is needed to develop sustainable agricultural production systems. We evaluated differences in Cu, Mn, Zn, and six other trace elements in response to 5 yr of bermudagrass [Cynodon dactylon (L.) Pers.] management varying in fertilization and harvest st...

Grazing forages on small-grain fields can be a profitable "second crop" for grain producers and an opportunity for cow-calf producers to retain ownership of weaned calves. The increasing costs of conventional tillage and movement of soil nutrients into surface water creates a need for more sustainable production practices to be incorporated by producers into wheat pasture production systems. Re...

This paper discusses the existing approach to gilt yield curves used by the Financial Times and suggested by Dobbie and Wilkie This ap proach splits bonds into high medium and low coupon bands and ts separate yield curves to each In recent years this method has been identi ed as sus ceptible to catastrophic jumps when the least squares t jumps from one set of parameters to another set of quite ...

background: this cross-sectional study was conducted to compare the cost-effectiveness of three therapeutic methods of long-term hemodialysis, kidney transplant from a living person and kidney transplant from a cadaver utilizing disability adjusted life years (daly) using data from the records of patients referred to afzalipour hospital of kerman in 2012.   methods: this cross-sectional study u...