A major change observed worldwide, is the growing concern over health risk associated with consumption of food with residues of agro-chemicals used in production. This heightened awareness about health and environmental issues has generated interest in alternative farming techniques—one...

The decomposition of a finite partially ordered set of elements as a union of chains was considered by Dilworth [2]. Dantzig and Hoffman [1] formulated this problem as a linear programming problem and obtained Dilworth's theorem from duality theory. For some practical applications and for a...