我们要获得水稻高产,必须协调好每亩穗数、每穗实粒数和千粒重这三者之间的关系,达到既要有结构合理的群体,又要有经济性状优良的个体。但在生产上目前普遍存在的问题是,夺高产主要靠增肥、增苗和增加每亩蔸数,造成群体臃肿庞大,个体经济性状变劣,产量不高不稳,成本高,增产不增 To get high yields of rice, we must coordinate the relationship between the number of spikes per panicle, the number of spikelets per panicle and the grain weight per thousand, so as to achieve both a well-structured population and individuals with good economic traits. However, the problem currently prevailing in production is that high output is mainly caused by increasing fertilizer, increasing seedlings and increasing the number of grains per mu, causing the groups to become bloated, the individual’s economic traits deteriorate, the output is not high and unstable, the cost is high, and the yield is not increased