农作物的羣体概念,已在植物生理的研究领域中,随着农业生产大跃进和总结农作物丰产经验而开始发展起来。研究作物的生长发育规律,要以羣体为对象的提法,是很正确的。但在已发表的有关文献中,有的论点还是依据一些缺乏代表性的例子作为分析研究的理论根据,因而不能掌握问题的实质,不能反映客观事物的真实内容,所得结论,也就很难正确。 众所周知,作物羣体是在“有主观企图、 The concept of colony of crops has begun to develop in the field of plant physiology with the great leap forward in agricultural production and the conclusion of crop yielding experience. It is very correct to study the law of crop growth and development in order to target groups. However, in the published literature, some arguments still rely on some lack of representative examples as the theoretical basis for analysis and research, thus failing to grasp the essence of the problem, failing to reflect the true contents of the objective facts, . As we all know, crop groups are "having subjective attempts,