草炭风化炭改良盐碱土的生态效应研究

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

  • 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Ca2+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。

     

    Abstract: Pot experiment was conducted to study the effect of peat and weathered coal on soil alkali-salinity and rice plant yield in Keerqin sandy area. Results showed that, soil total salt was increased when adding peat or weathered coal mainly because the increasing of soil soluble Ca and Na. Soil organic carbon was positively corelated to the increasing of peat or weathered coal adding, so as to soil available N, P and K. Rice yield was significantly enhanced with the plant height, tiller length and rice grain amount of per tiller were raised.

     

/

返回文章
返回