榆林北部风沙区马铃薯盛花期需磷量分析  

Analysis of phosphorus requirement of potato in full flowering period in the wind-sand area of northern Yulin

作　　者：汪月 李小炜[1] 田丽[1] 张思雨 乔紫薇 孙美美 张艳梅 WANG Yue;LI Xiaowei;TIAN Li;ZHANG Siyu;QIAO Ziwei;SUN Meimei;ZHANG Yanmei(School of Life Sciences,Yulin University,Yulin 719000,China;Yulin City Water Resources Information and Hydrological Survey Center,Yulin 719000,China)

机构地区：[1]榆林学院生命科学院,陕西榆林719000 [2]陕西省榆林市水利信息与水文勘测中心,陕西榆林719000

出　　处：《安徽农学通报》2023年第22期18-22,共5页Anhui Agricultural Science Bulletin

基　　金：榆林市科技计划项目(CXY-2020-008-03);榆林市科技计划项目(CXY-2022-63);榆林市水利局横向课题(2021HX511)。

摘　　要：本研究以马铃薯希森6号为试验材料,设置9个不同梯度磷肥(P2O5)处理,分别为0、30、60、90、120、150、180、210和240 kg/hm^(2),采用田间试验方法,测定榆林北部风沙区不同处理下希森6号的生长指标、光合指标和根系特征的变化规律。结果表明:随着磷肥用量的增加,马铃薯的株高、地上部重量整体呈上升的趋势,但茎粗、冠幅、块茎重量、光合指标和根系指标均呈先升后降趋势,在供磷量为120 kg/hm^(2)时,马铃薯的茎粗、冠幅、块茎重量、光合指标和根系指标达到峰值。结果表明,适度施磷可以有效提高马铃薯的生长发育水平。This research used potato Xisen 6 as the experimental material and set up 9 different gradient phosphate fertilizer(P2O5)treatments,namely 0,30,60,90,120,150,180,210 and 240 kg/hm^(2)respeetivly.The field experiment method was used to determine the changes in growth indicators,photosynthetic indicators,and root characteristics of Xisen 6 under different treatments.The results showed that as the amount of phosphorus fertilizer increased,the plant height and aboveground weight of potatoes showed an overall upward trend,but the stem diameter,crown width,tuber weight,photosynthetic index,and root index all showed an upward and then downward trend.When the phosphorus supply was 120 kg/hm^(2),the stem diameter,crown width,tuber weight,photosynthetic index,and root index of potatoes reached their peak.It suggested that moderate phosphorus application can effectively improve the growth and development level of potatoes.

关 键 词：磷肥 马铃薯 盛花期 生长 

分 类 号：S532[农业科学—作物学]