氨基酸复合肥对盐碱土理化性状的改良效果  

Effect of amino acid compound fertilizer on physical and chemical properties of saline-alkali soil

作　　者：张力 刘景辉[1] 李辉 刘玉娥 ZHANG Li;LIU Jing-hui;LI Hui;LIU Yu-e(College of Agronomy,Inner Mongolia Agricultural University,Hohhot Inner Mongolia 010019;Aquatic Management Station,Agriculture,Animal Husbandry and Science and Technology Bureau,Wuchuan County,Hohhot Inner Mongolia 011700)

机构地区：[1]内蒙古农业大学农学院,内蒙古呼和浩特010019 [2]内蒙古呼和浩特市武川县农牧和科技局水产管理站,内蒙古呼和浩特011700

出　　处：《中国土壤与肥料》2021年第1期204-211,共8页Soil and Fertilizer Sciences in China

基　　金：内蒙古自治区主席基金项目与内蒙古自治区重大科技专项;内蒙古自治区“草原英才”创新团队项目;内蒙古自治区科技创新团队项目;全国农业科研杰出人才及其创新团队项目;现代农业产业技术体系建设专项(CARS-O8)。

摘　　要：为了明确氨基酸复合肥对盐碱地改良及燕麦增产效果,探究连续2年在大田试验条件下施用A3(2250 kg/hm^(2))、A2(1500 kg/hm^(2))、A1(750 kg/hm^(2))和CK(0 kg/hm^(2))4个氨基酸复合肥对盐碱地土壤理化性状及产量的影响。结果表明,盐碱地施用氨基酸复合肥后,0~40 cm土层直径>0.25 mm土壤团聚体含量提高了0.17%~9.08%;土壤质量含水率随施肥量的增加而增加,在燕麦拔节期效果最为显著,较对照提高12.34%。0~40 cm土层,土壤pH由8.84降为8.03,全盐含量由9.16 g/kg降为8.30 g/kg;土壤有机质、碱解氮、有效磷、速效钾的含量分别增加12.22%~27.36%、1.16%~9.50%、7.18%~39.66%和7.83%~35.56%。燕麦的籽粒与鲜、干草产量增加显著,增产49.38%~65.16%。以施用2250 kg/hm^(2)氨基酸复合肥对改善盐碱地土壤理化性状与增产效果最明显。In order to clarify the effect of amino acid compound fertilizer on improving saline-alkali land and increasing oat yield,field experiment was applied for two consecutive years with four treatments:A3(2250 kg/hm~2),A2(1500kg/hm~2),A1(750 kg/hm~2)and CK(0 kg/hm~2)to study the effects of the four amino acid compound fertilizers on the physicochemical properties of saline-alkali soil and oat yield.The results showed that:after the application of amino acid compound fertilizer in saline-alkali land,the content of soil aggregates with diameter>0.25 mm increased by 0.17%~9.08%in 0~40 cm soil layer.The soil water content increased with the increase of fertilizer application,the effect was most significant at the elongation stage of oat,which was 12.34%higher than CK.In 0~40 cm soil layer,the soil p Hdecreased from 8.84 to 8.03,and the total salt content decreased from 9.16 g/kg to 8.30 g/kg.The contents of soil organic matter,alkaline nitrogen,available phosphorus and available potassium increased separately from 12.22%to 27.36%,1.16%to 9.50%,7.18%to 39.66%and 7.83%to 35.56%.Oat grain,fresh grass and hay production increased significantly,increasing yields from 49.38%to 65.16%.The application of 2250 kg/hm~2 amino acid compound fertilizer has the most obvious effect on improving the physicochemical properties of saline-alkali soil and increasing yield.

关 键 词：氨基酸复合肥 盐碱 土壤理化性状 燕麦 

分 类 号：S156.4[农业科学—土壤学]