磷酸铵镁与化肥配施对酸性土壤的改良研究  

Study on the improvement of acidic soil by the combined application of magnesium ammonium phosphate and chemical fertilizer

作　　者：张西兴 王明伟 王子浩 杨凯 ZHANG Xixing;WANG Mingwei;WANG Zihao;YANG Kai(Sinochem Agricultural Linyi R&D Center,Linyi 276000,China;College of Agriculture,Yangtze University,Jingzhou 434025,China)

机构地区：[1]中化农业临沂研发中心,山东临沂276000 [2]长江大学农学院,湖北荆州434025

出　　处：《生态产业科学与磷氟工程》2024年第11期70-74,共5页Eco-industry Science & Phosphorus Fluorine Engineering

基　　金：中化化肥有限公司土壤健康技术与产品及集成方案开发项目(072023005F)。

摘　　要：以玉米为供试作物,研究工业副产磷酸铵镁与化肥配施对酸性土壤的改良效果。结果表明,施用磷酸铵镁石可以提升玉米的株高、茎粗、地上部和地下部鲜质量,其中,与对照等养分量的磷酸铵镁+硫基复合肥处理和磷酸铵镁+氮钾肥处理显著提升了玉米茎粗,磷酸铵镁磷养分量减半+氮钾肥处理显著提升了玉米株高和地上部鲜质量;施用磷酸铵镁处理土壤pH可以提升0.07~0.12,提升土壤碱解氮、有效磷和交换性钙、镁离子含量,其中,与对照等养分量的磷酸铵镁+氮钾肥处理显著提升了土壤pH和交换性镁离子含量。可见,施用磷酸铵镁可以改善酸性土壤pH,提升土壤肥力,促进玉米生长。Using corn as a test crop,the improvement effect of magnesium ammonium phosphate combined with chemical fertilizer on acid soil is studied.The results show that the application of magnesium ammonium phosphate an improve the plant height,stem thickness,above ground and below ground fresh quality of corn.Treatments with magnesium ammonium phosphate+sulfur based compound fertilizer and magnesium ammonium phosphate+nitrogen potassium fertilizer with equal nutrient content compared to control significantly improve the stem thickness of corn,and treatment significantly with half of phosphorus nutrient content in magnesium ammonium phosphate+nitrogen and potassium fertilizer improved the plant height and above ground fresh quality of corn.Application of struvite can increase soil pH 0.07-0.12,and increase soil alkali-hydrolyzed nitrogen,available phosphorus,and exchangeable calcium and magnesium ion contents.Among them,treatment with magnesium ammonium phosphate+nitrogen potassium fertilizer with equal nutrient content compared to control significantly increases soil pH and exchangeable magnesium ion contents.It can be seen that the application of magnesium ammonium phosphate can improve the pH of acidic soil,improve soil fertility,and promote the growth of corn.

关 键 词：磷酸铵镁 酸性土壤 土壤PH 土壤肥力 玉米生长 

分 类 号：S143.5[农业科学—肥料学]