钙基膨润土鸟粪石肥养分释放特性及肥效研究  

Study of the Nutrient Release Characteristics and Fertilizer Efficiency of Calcium-Base Bentonite+Struvite Products

作　　者：方雅瑜 胡逸萱 聂芳 冉启洋 张赛辉 罗志诚 FANG Ya-yu;HU Yi-xuan;NIE Fang;RAN Qi-yang;ZHANG Sai-hui;LUO Zhi-cheng(Hunan Hengkai Environmental Protection Investment Co.,Ltd.,Changsha 410000,PRC)

机构地区：[1]湖南恒凯环保科技投资有限公司,湖南长沙410000

出　　处：《湖南农业科学》2021年第12期47-50,共4页Hunan Agricultural Sciences

基　　金：国家重点研发计划资助项目(2017YFE0118500)。

摘　　要：以自制的钙基膨润土鸟粪石肥(MCF)、普通复混肥(NF)、缓释复合肥(SF)为材料,采用土壤培养及盆栽试验的方法探究了MCF的养分释放特征及对生菜生长的促进作用。结果表明:土壤中施加5~20 g/kg的MCF培养28 d后,土壤pH值提升了0.31~0.89,土壤有机质、全氮、全磷与有效磷含量分别增加了18.2%~44.3%、178.2%~556.8%、11.5%~42.0%、51.0%~127.5%;盆栽试验中,施肥处理均能增加生菜的株高、鲜重及干重,其中MCF的效果优于NF及SF。因此,在土壤中施加适宜浓度的MCF,可有效改良酸性土壤,提升土壤养分含量,促进生菜生长。To explore the nutrient release characteristics and fertilizer efficiency of self-made calcium-base bentonite+struvite(MCF),the soil culture and pot experiments of lettuce were conducted,with MCF,normal compound fertilizer(NF),and slow-release fertilizer(SF)as test materials.The soil culture results showed that 28 d after applying 5-20 g/kg of MCF,the soil pH value,organic matter,total nitrogen,total phosphorus and available phosphorus contents were increased by 0.31-0.89 units,18.2%-44.3%,178.2%-556.8%,11.5%-42.0%,and 51.0%-127.5%,respectively.The pot experiments showed that all the fertilizer treatments increased the plant height(1.48-2.58 times),fresh weight(1.87-3.07 times)and dry weight(1.95-3.95 times)of the lettuce plants,of which MCF produced the best effect.Therefore,applying an appropriate concentration of MCF to the soil can effectively improve acidic soil and increase soil nutrients,thus promote the growth of lettuce.

关 键 词：钙基膨润土 鸟粪石 自制肥料 土壤PH值 养分含量 肥效 

分 类 号：S143.5[农业科学—肥料学]