薯类专用肥用量对甘薯产量及土壤养分的影响  

Effect of Potato Specific Fertilizer Dosage on Sweet Potato Yield and Soil Nutrients

作　　者：张新刚 何威明 李权辉 李彬彬 赖勇 尹心馨 陈小慧 ZHANG Xingang;HE Weiming;LI Quanhui;LI Binbin;LAI Yong;YIN Xinxin;CHEN Xiaohui(Beijing Cultivated Land Construction and Protection Center,Beijing 100012;Soil Fertilizer Extension Service Station of Miyun District in Beijing City,Beijing 101500)

机构地区：[1]北京市耕地建设保护中心,北京100012 [2]北京市密云区土肥工作站,北京101500

出　　处：《现代农业科技》2023年第24期21-22,36,共3页Modern Agricultural Science and Technology

摘　　要：为确定薯类专用肥的合理用量,以甘薯品种西瓜红为试验材料,设置4个用量(0、225、450、675 kg/hm^(2))处理,研究不同用量薯类专用肥对甘薯产量及土壤养分的影响。结果表明:薯类专用肥用量450 kg/hm^(2)的处理甘薯产量最高,达到44715 kg/hm^(2);回归分析结果显示,当薯类专用肥用量为435.19 kg/hm^(2)时,甘薯产量最高;随着薯类专用肥用量的增加,土壤碱解氮、有效磷、速效钾和EC值有逐渐增加的趋势,而pH值有下降现象。在实际生产过程中,要根据土壤基础地力情况,合理施用薯类专用肥。In order to determine the reasonable amount of potato specific fertilizer,the sweet potato variety Xiguahong was used as the experimental material,and four treatments(0 kg/hm^(2),225 kg/hm^(2),450 kg/hm^(2),675 kg/hm^(2))were set up to study the effects of different amounts of potato specific fertilizer on sweet potato yield and soil nutrients.The results showed that the treatment with 450 kg/hm^(2) of potato specific fertilizer had the highest yield(44715 kg/hm^(2));the regression analysis results showed that when the amount of potato specific fertilizer was 435.19 kg/hm^(2),the sweet potato yield was the highest;with the increase of potato specific fertilizer,there was a increasing trend of alkali hydrolyzed nitrogen,available phosphorus,available potassium,and EC value,while pH value decreased.In the actual production process,it is necessary to apply potato specific fertilizers reasonably based on the soil basic fertility.

关 键 词：甘薯 薯类专用肥 产量 土壤养分 

分 类 号：S531[农业科学—作物学] S147.5