氮磷钾配施对滴灌甜菜经济产量的影响  

Effects of combined application of nitrogen,phosphorus and potassium on economic yield of sugarbeet under drip irrigation

作　　者：许鹏杰 周红亮 穆智光 张丽娟 黄睿敏 蒋玉康 赵永乐 曾志 曹禺乾 路思瑶 胡华兵 樊华[1] XU Peng-jie;ZHOU Hong-liang;MU Zhi-guang;ZHANG Li-juan;HUANG Rui-ming;JIANG Yu-kang;ZHAO Yong-le;ZENG Zhi;CAO Yu-qian;LU Si-yao;HU Hua-bing;FAN Hua(Agricultural College of Shihezi University,Shihezi Xinjiang 832003;Sugar Beet Research Institute of Xinjiang Shihezi Academy of Agricultural Sciences,Shihezi Xinjiang 832011)

机构地区：[1]石河子大学农学院,新疆石河子832003 [2]新疆石河子农业科学研究院甜菜研究所,新疆石河子832011

出　　处：《中国土壤与肥料》2023年第4期92-98,共7页Soil and Fertilizer Sciences in China

基　　金：兵团中青年科技创新领军人才计划(2018CB029);国家自然科学基金项目(31660360、31771720);石河子大学国际科技合作推进计划(GJHZ201706)。

摘　　要：为探寻干旱区滴灌甜菜氮磷钾最佳施用模式,以KWS9147为材料,采用“3414”试验设计,分析氮磷钾配比对甜菜经济产量的影响。结果表明,不同肥料配比对甜菜块根产量、含糖率与产糖量影响显著。施肥因子对甜菜块根产量的单独效应为氮肥>钾肥>磷肥;对含糖率与产糖量的单独效应均为磷肥>氮肥>钾肥。在本试验中,单独施以足量的氮、磷肥有利于提高甜菜产量。然而,当钾肥(K_(2)O)施入量超过46.74 kg·hm^(-2)时产量下降,施入量超过72.79 kg·hm^(-2)时产糖量下降;磷肥(P_(2)O_(5))施入量超过35.91 kg·hm^(-2)时块根含糖率下降。氮磷肥配施条件下,在施氮肥(N)0~39.1 kg·hm^(-2)、磷肥(P_(2)O_(5))0~89.5 kg·hm^(-2)范围内,随着施用水平的增加,甜菜产糖量显著增加。氮磷肥、磷钾肥与氮钾肥互作均可以有效提高甜菜块根含糖率。本试验中施肥配比N∶P_(2)O_(5)∶K_(2)O为2.7∶1∶1.1时,可获得最高产糖量(26772.1 kg·hm^(-2))。In order to explore the best ratio of nitrogen,phosphorus and potassium under drip irrigation for sugar beet in arid area,KWS 9147 was used as material and“3414”experimental design was used to analyze the effect of the ratio of nitrogen,phosphorus and potassium on the economic yield of sugar beet.The results showed that different fertilization ratios had significant effects on beet root yield,sugar content and sugar yield.The single effect order of fertilization factors on sugar beet root yield was nitrogen fertilizer>potassium fertilizer>phosphorus fertilizer;The order of individual effects on sugar content and sugar yield was phosphorus fertilizer>nitrogen fertilizer>potassium fertilizer.In this experiment,applying sufficient nitrogen and phosphorus fertilizer was beneficial to improve the yield of sugar beet.When the application amount of potassium fertilizer(K_(2)O)was more than 46.74 kg·hm^(-2),the yield was decreased,when the application amount was more than 72.79 kg·hm^(-2),the sugar yield was decreased,and when the application amount of phosphorus fertilizer(P_(2)O_(5))was more than 35.91 kg·hm^(-2),the sugar content of root was decreased.In the range of N 0~39.1 kg·hm^(-2) and P_(2)O_(5)0~89.5 kg·hm^(-2),the sugar yield of sugar beet root was increased significantly with the increase of fertilizer application level.The interaction of nitrogen and phosphorus,phosphorus and potassium,nitrogen and potassium fertilizers effectively improved the sugar content of root.In this experiment,when the ratio of N∶P_(2)O_(5)∶K_(2)O was 2.7∶1∶1.1,the highest sugar yield(26772.1 kg·hm^(-2))could be obtained.

关 键 词：甜菜 施肥配比 块根产量 产糖量 含糖率 

分 类 号：S566.3[农业科学—作物学]