Abstract:

The study is aimed to search the best population structure of soybean in albic soil, and increase the yield of soybean in albic soil. So, effect of different population structure of soybean on soybean yield and yield traits were studied in different genotype varieties, row spacings, densities in albic soil with 3 factors and 3 levels orthogonal test [using orthogonal table L9(34)]. The results indicated that: variety (F=43.63>F0.01=18.00) and density (F=18.03>F0.01=18.00) were both reached very significant level, row spacings (F=9.28>F0.05=6.94) reached significant level. The relationships between yield and the three each factors of varieties, densities and row spacings were very close. Among all these factor conbinations, the yield achieved the highest when the semi-dwarf variety ‘Henong60’ was used in density of 55 plants per m2 and row spacing of 17 cm, in which the performance of yield traits was the best. Therefore, using dwarf varieties, increasing density, reducing row spacing is an important way to improve soybean yield at the present time.