沼渣土壤调理剂对胶东地区酸性土壤改良效果研究  

Effect of Soil Conditioner of Biogas Slurry on Acid Soil Improvement in Jiaodong Area

作　　者：王爱英 赵啸林 孙玲丽 李华[1] 罗星[1] WANG Ai-ying;ZHAO Xiao-lin;SUN Ling-li;LI Hua;LUO Xing(China Agricultural University(Yantai),Yantai 264670,China;Zhongde Fertilizer(Yantai)Co Ltd,Yantai 264000,China)

机构地区：[1]中国农业大学烟台研究院,山东烟台264670 [2]众德肥料(烟台)有限公司,山东烟台264000

出　　处：《中国沼气》2019年第4期98-102,共5页China Biogas

基　　金：烟台市科技计划项目(2016ZH075);中国农业大学烟台研究院URP项目(U2017023)

摘　　要：胶东地区农田以棕壤为主,近几年土壤酸化问题严重,为改良酸化土壤,该研究用新鲜沼渣、花生壳粉、牡蛎壳粉等制备出一种有机-无机复合型土壤调理剂,采用盆栽的方式,研究这种土壤调理剂在不同施入量情况下对酸化土壤的改良效果。结果表明,这种土壤调理剂富含有机质,腐殖质,N,P,K,Ca等营养元素;在施入量25%之内都能促进小油菜的生长,增加小油菜Vc含量,提升叶绿素含量;当施入10%时能提升土壤pH值1以上,土壤容重降低10%,孔隙度增加9.6%,土壤持水量增加24%。说明这种土壤调理剂能有效改良酸化土壤,提高养分利用率,具有保水作用,有利于作物生长。The farmland in the area of Jiaodong is largely brown soil.In recent years,soil acidification has become a serious problem.In order to improve the acidified soil,this research prepared an organic-inorganic composite soil conditioner using fresh digestate,peanut shell powder and oyster shell powder,and the potting method was adopted with different application rate,the effect of this soil conditioner on improving the acidified soil were investigated.The results showed that the soil conditioner was rich in organic matter,humus,N,P,K,Ca and other nutritive elements,it could promote the growth of small oilseed rape,increase its VC content and enhance the chlorophyll content when the application rate was within 25%.When the application rate was 10%,the soil pH value increased by 1 or more,the soil volume weight reduced by 10%,the porosity increased by 9.6%,and the soil water holding capacity increased by 24%,suggesting that,this soil conditioner could effectively improve acidified soil.

关 键 词：沼渣 土壤调理剂 酸化土壤 改良效果 

分 类 号：S216.4[农业科学—农业机械化工程]