土壤中掺入不同植物材料对其pH的影响

来源 :扬州大学学报(农业与生命科学版) | 被引量 : 0次 | 上传用户:lrg1169
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在低pH的酸性红壤、近中性的黄棕壤和高pH的盐土中加入茶叶、稻草、大豆3种植物茎叶碎末进行室内培养, 研究不同植物材料在短期腐解过程中对不同土壤pH的影响. 结果表明: 经过14 d培养后, 茶叶轻微降低红壤和盐土的pH, 对黄棕壤的pH没有影响; 稻草亦显示出类似的趋势;大豆叶可使酸性红壤和中性黄棕壤的pH有一定程度升高, 但使盐土的pH有所下降.
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