Gong Zhenping et al..[J].HEILONGJIANG AGRICULTURAL SCIENCES,1995,(03):11.[doi:10.11942/j.issn1002-2767.1995.03.0011]
弱碱性土壤井水种稻条件下土壤盐分及PH值变化规律的研究
- 文献标志码:
- A
- 摘要:
- 本文探讨了弱碱性土壤井水种稻条件下,土壤盐分及pH值的变化规律。结果表明:富锦水田试验区弱碱性上壤井水种稻七年,土壤未表现积盐现象;种稻后0~15厘米土层:pH值由7.92~8.30下降为6.76~7.45,HCO-3含量及其占溶盐阴离子总量的百分比下降;50厘米土层土壤代换性Na+含量减少,比值变小。当由水田改种旱田后,土壤pH、代换性Na+、比值又回升到旱田水平。
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