草炭与风化炭改良盐碱土的生态效应  

Ecological effect of peat and weathered coal on alkali-saline soil

作　　者：吴龙华[1] 王桂荣[1] 张春兴[1] 西崎泰[2] 山口达明[2] 

机构地区：[1]中国科学院沈阳应用生态研究所,沈阳110015 [2]日本千叶工业大学

出　　处：《生态农业研究》2000年第2期34-37,共4页Chinese Journal of Eco-agriculture

基　　金：中日合作项目"泥炭改良沙漠土的研究"部分研究内容

摘　　要：采用草炭和风化炭进行改良盐碱土的盆栽试验。结果表明,施用草炭、风化炭使土壤盐分略有上升,主要使Ca^(2+)和Na^+增加;土壤有机质含量因草炭、风化炭的施用而增加,且与有机物料的用量呈正相关关系;土壤速效氮、速效磷、速效钾含量也均随有机物料的施用而增加。水稻株高、穗长和每穗粒数均有所增加,水稻籽实产量显著提高。Pot experiment was conducted to study the effect of peat and weathered coal on soil al-kali-salinity and rice plant yield in Keerqin sandy area. Results showed that total salt in soil was increased when adding peat or weathered coal mainly because the increasing of soil soluble Ca and Na. Soil organic carbon,soil available N, P and K were positively correlated to the increasing of peat or weathered coal adding. Rice yield was significantly enhanced,the plant height, tiller length and grain number of per tiller were raised.

关 键 词：草炭 风化炭 盐碱土 盐分 养分 水稻产量 

分 类 号：S156.49[农业科学—土壤学] S511.01[农业科学—农业基础科学]