Original sentence: In 1984 Elroy Leon Rice in his monography on allelopathy reinforced Molisch's definition in which he asserted that this includes all direct effects, be they positive or negative, of a plant or micro-organism on another by the means of liberating certain biochemicals into the environment..
Edited sentence: In 1984 Elroy Leon Rice in his monography on allelopathy reinforced Molisch's definition in which he asserted that this includes all direct effects, be they positive or negative, of a plant or micro-organism on another by the means of liberating certain biochemicals into the environment