各地区春小麦高产都因空间因素、土壤因素及人为因素的相互作用,而影响穗数、穗粒数和粒重,但构成产量的三要素又相互制约着。由于生态环境与栽培措施的年际间差异,每年依照各特定的条件变化而形成特定的模式,但往往对以后的栽培指导作用不大,因而只有对多年实测资料作系统分析。参照本地区高产结构特点,变化规 The high yield of spring wheat in all regions affected the number of spikes, grains per spike and grain weight due to the interaction of space factors, soil factors and human factors. However, the three elements that make up the yield also restricted each other. Due to the inter-annual differences between ecological environment and cultivation measures, specific patterns are formed every year according to specific conditions. However, they often have little effect on future cultivation guidance. Therefore, only systematic analysis of measured data over many years is made. Reference to the characteristics of high-yield structure in the region, changes in regulations