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通过小区及大田的调查研究，论述了碱茅各生育期株高及生物量的发育规律和动态。研究结果：前期碱茅的株高及地上生物量生长缓慢，后期增长迅速，地上风干物质增长峰值出现在孕穗－抽穗期，达５．３３ｇ／（ｄ．ｍ￣２），最高产量出现在成熟期为３１６．２ｇ．ｍ￣（－２）地下生物量，前期增长迅速，后期增长缓慢，与地上生物量恰成相反趋势，在拔节－孕穗期产量达峰值，日增重达１．９３ｇ．ｍ￣（－２）。研究结果表明，碱茅是一种抗旱、耐盐碱、草质优良，适合盐碱地种植的优良牧草。
Through the investigation of the plot and the field, the developmental rules and dynamics of plant height and biomass in each growth stage were discussed. The results showed that the plant height and aboveground biomass of early-stage sojae grew slowly and rapidly in late stage. The peak of above-ground dry matter growth appeared at booting and heading stage, reaching 5.33g / (d.m ~ 2) and the highest yield appeared at maturity The period is 316.2g. The underground biomass of m ~ (-2) increased rapidly in the early stage and slowly in the late stage, just opposite to aboveground biomass. The peak biomass at jointing-booting stage reached 1.93g. m ~ (-2). The results showed that Alhumna is a good forage resistant to drought, salt and alkali, excellent in quality and suitable for planting in saline-alkali soil.