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作 者 ：陈梅1;陈亚华1;沈振国1;沈其荣2

期 刊 ：植物营养与肥料学报 2002年 8卷 2期 页码：173-176

关键词：红壤；铝毒；小麦；猪粪；缓解铝毒；

Keywords:red soil, Al toxicity, wheat, pig manure, alleviation of Al toxicity,

摘 要 ：利用盆栽实验研究了施用猪粪和石灰对红壤铝毒的缓解效应。结果表明 ,在对照土壤 (pH 4.2)上生长的小麦遭受铝毒害明显 ,出苗后 36d全部枯死 ,施用石灰和猪粪能不同程度地缓解铝毒害。施用猪粪和石灰都可以提高土壤pH ,降低交换性铝含量。与单施石灰相比 ,石灰猪粪混施可以提高土壤 pH ,降低交换性铝含量 ,增加小麦叶绿素含量、光合速率和地上部干物重。与单施猪粪相比 ,石灰猪粪混施使小麦地上部K、Mg和P含量减少。

Abstract:A pot experiment was conducted to investigate the effect of pig manure and lime on the alleviation of Al toxicity in acid red soil Results showed that wheat grown in acid red soil were severely affected by Al toxicity Wheat seedlings had died by the time of harvest (about 30 days after germination) However, plant growth was improved by application of pig manure or lime which could increase soil pH, decrease the concentration of exchangable Al in soil Compared to single application of lime, application of both pig manure and lime could increase soil pH, decrease soil exchangable Al content, and increase wheat leaf chlorophyll content and photosynthesis rate Combined application of pig manure with lime decreased the contents of K, P and Mg in wheat shoot compared to the single application of pig manure

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