[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(09):105-110.[doi:10.11942/j.issn1002-2767.2021.09.0105]
沧州市海兴县耕地土壤养分状况分析
- 文献标志码:
- A
- 摘要:
- 为科学评价和改良沧州市海兴县耕地土壤,从而指导科学施肥和调整作物布局,2017和2019年在沧州市海兴县8个乡镇进行取土采样,分析比较pH、有机质、全氮、有效磷、速效钾、缓效钾、含盐量等指标,初步研究该地区土壤养分状况。结果表明:海兴县土壤整体偏碱性,3 a内变化不大,2017年pH变异系数为2.68%,2019年为1.69%;有机质、全氮、有效磷、速效钾3 a内含量有所增加,分别增加了20.44%、25.00%、5.19%、21.59%,缓效钾下降5.10%;含盐量2019年比2017年下降了8.36%;海兴县耕地存在不同程度的盐碱化,但并不严重。整体来说,海兴县土壤耕层的有机质、全氮、有效磷、速效钾的含量均不高,耕地土壤质地偏轻,土壤瘠薄,养分不足。建议采用适合本地农业发展的合理经营模式,增强土壤种植承载能力,提高作物产量和品质。
参考文献/References:
[1]ALTIERI M A,NICHOLLS C I.Soil fertility management and insect pests:Harmonizing soil and plant health in agroecosystems[J].Soil & Tillage Research,2003,72(2): 203-211.
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备注/Memo
收稿日期:2021-05-25