<p>CASHEW roasters will have to buy a major portion of their needs for the second half of the year over the next six to eight weeks, Samsons Trading of Mumbai said in a March 16 market report.</p> <p>"We expect that traders will probably want to cover their existing short positions - and maybe even go a little bit long - before that so that they are comfortable in making new contracts with retailers," the company added.</p> <p> </p>