Early in 1983,E.P.Odum pointed out “redundancy can enhance the stability of a ecosystem”,SHENG Chengfa firstly gave a concept of “growth redundancy” in 1991,and demonstrated the over\|compensation in crops.Many scientists carried out researches on the growth redundancy,putting whole interesting in growth redundancy in crops resulting in departure from a state by which men can benefit the most.\;However,this is a subject for which,unfortunately,little evidence has been gathered.Growth redundancy in plant...