不同密度对黔花生4号产量及性状的影响

Influence of Different Density on the Yield and Economic Traits of Qianhuasheng No.4

设置40.0 cm×13.4 cm、40.0 cm×16.7 cm、40.0 cm×20.0 cm、40.0 cm×23.4 cm、40.0 cm×26.7 cm 5种处理,探索铜仁市黔花生4号高产栽培适宜密度。结果表明,5个不同的种植密度黔花生4号的生育进程基本一致;产量间存在显著或极显著差异,产量随着种植密度的加大而增加;黔花生4号在该市适宜的种植密度为150 000～187 500窝/hm2,以187 500窝/hm2为最佳,此时群体、个体结构合理,性状表现较好,在2011年遭遇特大旱灾的情况下,产量仍达2 847.0 kg/hm2,增产优势明显。

Five kinds of planting densities（40.0 cm×13.4 cm,40.0 cm×16.7 cm,40.0 cm×20.0 cm,40.0 cm×23.4 cm,40.0 cm×26.7 cm） were set to study the appropriate planting density of peanut in Tongren area.The experimental results showed that the growth processes of peanut in the five planting densities were basically the same,there were great or remarkable differences in yields,and the yields increased with the increasing of planting density.The optimal planting density of Qianhuasheng No.4 in Tongren area was 150 000-187 500 fossa per hectare,especially was 187 500 fossa per hectare.Under the optimal planting density,the structures of group and the individual were reasonable,its traits were well,and the yield increase advantage was obvious as the yield still was 2 847.0 kg/hm2 in drought of 2011.