A new controlled release fertilizer was developed by coating urea particles with bio-based polyurethane. Coating materials were synthesized from liquefied wheat straw, isocyanate, and castor oil. The effects of liquefied solvents, mass ratio of liquid to solid, size of wheat straw, and reaction time during liquefaction process on the nitrogen release rate of polyurethane-coated urea (PCU) were ...

The New Cytology: DR. ALEXIS CARREL .297 ical Treatments to Shorten the Best Period of The Advancement of Horticultural Besearch: PRoTree Seeds: DR. CARL G. DEUBER ........................... 319 FESSOR A. T. ERWIN ............... 303 Special Articles: Scientific Events: The Biological Effect of High Voltage X-Rays: International Meetings in England; The Fifteenth PROFESSOR CHARLES PACKARD and ...

The New Cytology: DR. ALEXIS CARREL .297 ical Treatments to Shorten the Best Period of The Advancement of Horticultural Besearch: PRoTree Seeds: DR. CARL G. DEUBER ........................... 319 FESSOR A. T. ERWIN ............... 303 Special Articles: Scientific Events: The Biological Effect of High Voltage X-Rays: International Meetings in England; The Fifteenth PROFESSOR CHARLES PACKARD and ...

The ability of some crops to accumulate selenium (Se) is crucial for human nutrition and health. Selenium has been identified as a cofactor of the enzyme glutathione peroxidase, which is a catalyzer in the reduction of peroxides that can damage cells and tissues, and can act as an antioxidant. Plants are the first link in the food chain, which ends with humans. Increasing the Se quantity in pla...

Virginia Cooperative Extension programs and employment are open to all, regardless of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, or marital or family status. An equal opportunity/affirmative action employer. Issued in furtherance of Cooperative Extension work, Virginia Polytechnic Institute and State University, Virginia State University...

1. This document is HS405, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date, January 2010. Visit the EDIS Web site at http://edis.ifas.ufl.edu. 2. Richard Tyson, director, Orange County Extension Office, Orlando, FL; Robert Hochmuth, multicounty extension...

1. This document is HS942, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date: July 2002. Revised publication date: August 2003. This publication is included in SP-281, Water and Florida Citrus. Please visit the EDIS Web site at http:/edis.ifas.ufl.edu. 2. ...

A mathematical model to describe the concentration of profiles and flux for potentiometric and amperometric enzyme electrodes and of enzyme reactors has been developed. This model contains a non-linear term related to Micahlies-Menten kinetics. Analytical expressions pertaining to the substrate concentration and product concentration were reported for all values of parameters P S   , and  . ...