辽宁西安生态养殖模式中碳钾物流研究  

A Study of Carbon and Potassium Flows in Xi an Eco-animal Breeding Model, Liaoning

作　　者：姜勇[1] 颜丽[1] 张继宏[1] 关连珠[1] 须湘成[1] 王智坚 

机构地区：[1]沈阳农业大学土化系,辽宁大洼西安生态养殖场

出　　处：《沈阳农业大学学报》1995年第2期152-156,共5页Journal of Shenyang Agricultural University

基　　金：农业部"八五"课题"有机肥料养分循环与利用研究"资助

摘　　要：养猪产生的粪尿水通过种植水生植物和水稻进行肥水循环净化利用过程中Ｃ、Ｋ物质流进行分析，结果表明：猪身对Ｃ、Ｋ的固定占饲精料投入Ｃ、Ｋ总量的２５．２％、７％，粪尿Ｃ、Ｋ产出量占２７２％、９１．２％；水生植物养殖经高了系统光合效率和单位面积有机碳生产量，细绿萍具有极强的富集钾素作用，每生长季固定钾素２７７２ｋｇ／ｈｍ２，参加肥水循环的稻田上壤有机碳和全钾含量均高于不参加循环的．从Ｃ、Ｋ物流分析看，该模式结构合理，是北方稻区建立种植—养殖一体化的一种较为理想的模式．C and K flows through the process of pig breeding, hydrophyte planting and ricc-planting were shown as follows: 25.2% of C ac 7% of K of foddcrs input were fixcd by pig 27.2% of C and 91.2% of Kwere converted into pig manure and urin e.Organic carbon output rate and plant photo-utilization efficiency of this agroecosystem increased rapidly by breeding hydrophytes. Azolla fliculoid lamk was a kied of potassium-enriched plant and 2772 Kg/hm2 of K2O w ere fixed by it during each growing season. Organiccarbon and potassium levels of Paddy soil were incrcased by participating this cycle of organic manure .Based of those analyses, the Model could be regarded as an ideal ones for setting up ecological breeding and Planting farms in north China.

关 键 词：生态养殖模式 碳 钾 钾素富集植物 土壤 

分 类 号：S154.4[农业科学—土壤学]