南京农业大学学报 2005, 28 (4) : 68 ～71
Jou rna l of N an jing A g ricu ltu ra l U n iversity
不同来源有机肥及有机肥与无机肥混施 对西瓜生长期土壤酶活性的影响
吕卫光
1, 2
, 黄启为
摘要 : 通过盆栽试验研究了有机肥及有机肥与无机肥混施对西瓜生长期间土壤酶活性的影响 .结果表明 , 施用尿素和如 皋有机肥 (以动物毛发为原料 ) ,上海有机肥 (以鸡粪为原料 ) 的过氧化氢酶活性降低 , 而施用常熟有机肥 (以猪粪为 原料 ) 处理的土壤 21 d前过氧化氢酶活性高于对照 ; 施肥激发了土壤磷酸酶活性 , 施肥前期土壤磷酸酶活性升高 , 碱性 和酸性磷酸酶活性分别在施肥 7 d, 14 d时较高 , 随后出现降低 ,升高的变化趋势 .施肥 28 d, 14 d 时 , 土壤脲酶 ,蛋 白酶活性达到最高 , 随后酶活性逐渐减弱 .上述结果表明 , 施用有机肥能显著提高土壤酶活性 , 从而提高土壤肥力 . 关键词 : 有机肥 ; 有机无机肥混施 ; 西瓜 ; 土壤酶 中图分类号 : S14712 文献标识码 : A 文章编号 : 1000 2030 ( 2005 ) 04 0068 04
1, 2
with urea, organic fertilizer made of anim al hair and chicken excrement treatm ents were lower than that of control, but it was higher phatase activities of soil app lied w ith different fertilizers were increased 7 d and 14 d after fertilizer app lication and then had a trend of alternately decreasing and increasing U rease and p rotease activities reached highest 28 d and 14 d after fertilizer, respectively . . zymes, and thus imp roves soil fertility greatly . in the soil added with organic fertilizer made of p ig excrement 21 d after app lication of the organic fertilizer A lkaline and acid phos2 .
[ 1 ～6 ]
酶等多种酶的活性 , 但施用有机肥及有机无机肥混施对土壤中酶活性影响的动态研究则报道较少 . 笔者通过研究有机肥及有机无机肥混施对土壤中酶活性随西瓜生长变化的影响 , 旨在为蔬菜合理施用有 机肥及有机无机复合肥提供理论依据 .
A ll these demonstrate that app lication of fertilizers, especially organic fertilizers can increase significantly the activities of soil en2
收稿日期 : 2005 01 27 基金项目 : 国家 863 计划项目 ( 2004AA246080)
3 作者简介 : 吕卫光 ( 1972 ) , 在职博士 , 副研究员 , 研究方向为植物营养生态 ,土壤障碍修复等 . 通讯作者 Corresponding author
Abstract: Pot experim ents were carried out to study the effects of organic and organic 2inorganic fertilizers app lied on soil enzymes activities during watermelon grow ing period. The results obtained are listed as follow s Hydrogen peroxidase activity of soil app lied .
111 供试材料
11111 供试品种 供试西瓜 ( C itru llus lana tus) 品种为南汇明珠 .
Key words: organic fertilizer; organic 2inorganic fertilizer app lication; water melon; soil enzyme

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