| 土壤改良剂对紫色土低吸力段持水特性的影响 |
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| 引用本文： | 陈萌. 土壤改良剂对紫色土低吸力段持水特性的影响[J]. 西南大学学报(自然科学版), 1992, 14(5): 430-434 |
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| 作者姓名： | 陈萌 |
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| 作者单位： | 西南农业大学土化系 |
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| 摘 要： | 本文研究了聚丙烯酰胺(PHM)和聚乙烯醇(VAM)对不同质地紫色土低吸力段持水特性的作用.结果表明,两种改良剂均能提高土壤持水量和释水量,增大土壤吸持水分对植物有效程度.改良剂VAM 的效果优于PHM,对质地偏粘土壤的效果更好。而PHM 则较适用于质地偏砂的土壤.
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| 关 键 词： | 土壤改良剂 紫色土 |
EFFECTS OF SOIL AMWNDMENTS ON SOIL WATER-PETENTION IN LOW SUCTION RANGE PURPLE SOILS |
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| Cheng Meng. EFFECTS OF SOIL AMWNDMENTS ON SOIL WATER-PETENTION IN LOW SUCTION RANGE PURPLE SOILS[J]. Journal of southwest university (Natural science edition), 1992, 14(5): 430-434 |
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| Authors: | Cheng Meng |
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| Abstract: | PHM and VAM,two organic polymers used as soul amendments in a field experimentand a pot trial,proved effective in raising the moisture-holding capacity,moisture-re-leasing capacity and available water capacity of the soils.VAM seemed better,especially inclay-textured soils.PHM performed better in sandy-textured soils. |
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| Keywords: | soil conditioners purple soil soil water retention |
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