安徽农业大学学报2024，Vol.51Issue(5)：865-871,7.DOI:10.13610/j.cnki.1672-352x.20241031.011
新型控释肥料对安徽沿江流域油菜生长和土壤酶活性的影响
Effects of new controlled-release fertilizer on rapeseed growth and soil enzyme activity along the Yangtze River in Anhui
摘要
Abstract
In order to improve the traditional fertilization practices for rapeseed,this study established four fertilization treatments:control(CK),urea one-time fertilization(N180-1),urea divided into three fertilization(N180-3)and controlled release urea one-time fertilization(CRU180).The effects of new controlled-release urea on rapeseed yield,economic benefits,fertilizer utilization rate,above-ground nutrient accumulation and soil enzyme activity of rapeseed were studied.The results showed that the rapeseed yields of CRU180 and N180-3 treatments were higher than that of N180-1,with CRU180 yielding a 6.77％increase compared to N180-3.The total revenue of CRU180 processing was 1 050 Yuan·hm-2 higher than that of N180-3,and the net income was 720 Yuan·hm-2 greater than N180-3.Compared with N180-1,the nitrogen utilization rates of CRU180 and N180-3 were increased by 81.15％and 87.07％,respectively,while the partial productivities improved by 58.57％and 59.43％,respectively.The total nutrient accumulation of CRU180and N180-3 treatments were 10.85％and 46.54％higher than that of N180-1 treat-ment in bud bolting stage,respectively,and 41.67％and 40.77％higher than that of N180-1 treatment in the mature stage,respectively.The urease activity of CRU180 treatment was increased by 42.31％and 37.04％compared with N180-3 and N180-1 treatments during the bud bolting stage,respectively.Compared with N180-1 treatment,the soil ure-ase activities in CRU180 and N180-3 treatments were increased by 22.58％and 7.53％,respectively,while sucrase ac-tivities of CRU180 and N180-3 were increased by 12.34％and 12.63％at the mature stage,respectively(P＜0.05).The correlation analysis showed that the nutrients accumulation and yield of rapeseed were positively correlated with the activities of urease and sucrase.Combined with the rapeseed yield,nitrogen utilization rate,soil enzyme activity and economic benefits,new controlled-release urea is a better way of fertilization in the production of rapeseed.关键词
油菜/控释尿素/养分累积/土壤酶活性/肥料利用率Key words
rapeseed/controlled-release urea/nutrient accumulation/soil enzyme activity/fertilizer using efficiency分类
农业科技引用本文复制引用
杨梦杰,武际,王慧,程文龙,韩上,唐杉,卜容燕,李敏,高原,朱林..新型控释肥料对安徽沿江流域油菜生长和土壤酶活性的影响[J].安徽农业大学学报,2024,51(5):865-871,7.基金项目
国家重点研发计划(2021YFD1901200),芜湖市核心技术攻关项目(2021hg13)和安徽省现代农业产业技术体系建设专项. （2021YFD1901200）
