[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(06):116-118,124.[doi:10.11942/j.issn1002-2767.2021.06.0116]
沼渣对盐碱地饲草种植的影响
- 文献标志码:
- A
- 摘要:
- 为促进沼渣资源化利用，本试验采用田间小区设计，浅旋使沼渣与土壤充分融合，种植大麦和燕麦，在孕穗期和成熟期测定其地上生物量及地下性状。结果表明:3个品种在株高、地上生物量上差异显著，其中龙啤麦3号孕穗期株高极显著高于白燕6号和贝勒，成熟期龙啤麦3号和贝勒株高极显著高于白燕6号；3个品种生物量差异极显著；3个品种的8个根部性状指标进行分析中，在孕穗期除根冠比和根体积3个品种差异不显著外，其他根部性状在品种间均有显著差异(P＜0.05)，白燕6号根长总和、根表面积和比根长均显著高于贝勒和龙啤麦3号，龙啤麦3号根干重和冠层干重均显著高于另外两个品种，贝勒仅根直径显著高于另外两个品种；在成熟期3个品种的8个根部性状均存在显著差异(P＜0.05)；建植后的白燕6号、贝勒、龙啤麦3号土壤pH都有降低，成熟期白燕6号土壤pH为8.61，比改良前下降了9.4%。初步得出沼渣改良盐碱地上龙啤麦3号和贝勒生长情况好于白燕6号。
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备注/Memo
收稿日期：2021-03-25