结球甘蓝东洋206利用氮磷钾锰铁铜养分特点分析  

Absorption characteristics of N,P,K,Mn,Fe and Cu in Brassica oleracea var.capitata L.cv.Dongyang 206

作　　者：王冬群 成美玲 方旭丰 WANG Dongqun;CHENG Meiling;FANG Xufeng(Center of Cixi Agricultural Supervising and Testing,Cixi 315300,Zhejiang;People′s Government of Zhouxiang Town of Cixi City,Cixi 315324,Zhejiang;People′s Government of Longshan Town of Cixi City,Cixi 315331,Zhejiang)

机构地区：[1]慈溪市农业监测中心,浙江慈溪315300 [2]慈溪市周巷镇人民政府,浙江慈溪315324 [3]慈溪市龙山镇人民政府,浙江慈溪315331

出　　处：《浙江农业科学》2024年第11期2586-2590,共5页Journal of Zhejiang Agricultural Sciences

摘　　要：试验旨在进一步优化结球甘蓝东洋206施肥方案,通过分析结球甘蓝对N、P、K、Mn、Fe和Cu等6种养分和中微量元素累积情况,确定合理肥料施用量和配比关系。结果表明,结球甘蓝东洋206干物质中全氮、全磷、全钾含量平均值分别为0.305、0.033 4、0.305 g·kg^(-1)。目标产量为117 201 kg·hm^(-2),N、P_(2)O_(5)、K_(2)O施用量达到273.99、68.27、304.16 kg·hm^(-2),锰、铁、铜施用量分别为161.34、697.63、22.09 g·hm^(-2)时就可基本满足养分平衡。结球甘蓝各处理N、P_(2)O_(5)、K_(2)O吸收量平均值为:215.04、54.07、258.09 kg·hm^(-2),N、P_(2)O_(5)、K_(2)O吸收量比例平均值为20.16∶5.00∶24.30。结球甘蓝Mn、Fe和Cu吸收量平均值分别为134.42、426.31、16.05 g·hm^(-2)。NPK肥料农学效率分别为101.36、97.86、16.03 kg·kg^(-1)。NPK肥料利用率分别为43.80%、15.85%和36.25%。The aim of this experiment is to further optimize the fertilization plan for Brassica oleracea var.capitata L.cv.Dongyang 206.By analyzing the accumulation of six nutrients,including N,P,K,Mn,Fe and Cu,as well as the accumulation of trace elements in Brassica oleracea var.capitata L.,a reasonable fertilizer application amount and ratio relationship were determined.The average content of N,P,and K in the dry matter of Dongyang 206 was found to be 0.305,0.0334 and 0.305 g·kg^(-1),respectively.The application amount of N,P_(2)O_(5),and K_(2)O reached 273.99,68.27 and 304.16 kg·hm^(-2),and the application amount of Mn,Fe,and Cu reached 161.34,697.63,and 22.09 g·hm^(-2),respectively,could basically meet the nutrient balance when the target yield was 117201 kg·hm^(-2).The average absorption amounts of N,P_(2)O_(5) and K_(2)O in Brassica oleracea var.capitata L.were 215.04,54.07 and 258.09 kg·hm^(-2),and the proportion relationship between the average absorption amount of N,P_(2)O_(5),and K_(2)O was 20.16∶5.00∶24.30.The average absorption amounts of Mn,Fe and Cu in Brassica oleracea var.capitata L.were 134.42,426.31 and 16.05 g·hm^(-2),respectively.The agronomic efficiency of NPK fertilizer was 101.36,97.86 and 16.03 kg·kg^(-1),respectively.The NPK fertilizer utilization rates were 43.80%,15.85%and 36.25%,respectively.

关 键 词：结球甘蓝 氮磷钾 锰铁铜 养分 

分 类 号：S635.1[农业科学—蔬菜学]