木本泥炭对谷子物质生产及产量构成的影响研究

Study on the effect of woody peat on the dry matter accumulation and yield of millet

针对新整治旱地土壤养分及有机质含量低、作物产量低等问题,以冀谷38号为供试品种,设置试验处理[FD-A1:木本泥炭+腐熟秸秆+生物激发调节剂I+常规施肥;FD-A2:木本泥炭+腐熟秸秆+生物激发调节剂II+常规施肥;FD-B1:木本泥炭+腐熟秸秆+常规施肥;FD-B2:木本泥炭(减量)+腐熟秸秆+常规施肥]和对照CK(FD-C1:常规施肥)开展大田试验,探究木本泥炭及添加辅料对谷子农艺指标、干物质量积累以及产量的影响。试验结果表明,与常规施肥模式相比,施用木本泥炭能提升谷子农艺指标,木本泥炭减量后还能促进谷子地上生物量及根生物量干物质量积累,木本泥炭添加生物激发调节剂后不仅能提升谷子农艺指标,促进干物质量积累,还能提高谷子产量,添加生物激发调节剂II和生物激发调节剂I较常规施肥模式分别增产15.72%和14.18%,其中木本泥炭+生物激发调节剂II+腐熟秸秆+常规施肥模式为最佳处理模式。

In order to solve the problems of low nutrient content,low organic matter content and low crop yield in dryland farmland after the remediation,the experimental treatments[FD-A1:woody peat+matured straw+biological stimulating regulator I+conventional fertilization;FD-A2:woody peat+matured straw+bio-stimulating regulator II+conventional fertilization;FD-B1:woody peat+matured straw+conventional fertilization;FD-B2:woody peat(decrease)+matured straw+conventional fertilization]and control CK(FD-C1:conventional fertilization)were set up to investigate the effects of peat and supplementary materials on the agronomic index,dry matter accumulation and yield of millet.The results showed that compared with the conventional fertilization mode,the application of woody peat increased the agronomic index of millet,and the increase of aboveground biomass and root biomass dry matter accumulation could also be promoted after the reduction of woody peat.The addition of woody peat to the bio-stimulant regulator not only improved the agronomic index of millet,but also promoted the accumulation of dry matter,and increased the yield of millet.Adding bio-stimulating regulator II and bio-stimulating regulator I increased yield by 15.72%and 14.18%,respectively,compared with conventional fertilization mode,and the woody peat+bio-stimulating regulation agent II+composted straw+conventional fertilization mode was the best treatment mode.