[1]杨颖,仇璇.“曙光”油桃生长、产量和品质对施氮水平的响应[J].北方园艺,2017,41(23):58-63.[doi:10.11937/bfyy.20171981]
　YANG Ying,QIU Xuan.Response of N Fertilizer Rates on Growth,Yield and Quality of ‘Shuguang’ Nectarine[J].Northern Horticulture,2017,41(23):58-63.[doi:10.11937/bfyy.20171981]
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“曙光”油桃生长、产量和品质对施氮水平的响应

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第41卷 期数: 2017年23 页码: 58-63 栏目: 出版日期: 2017-12-10
Title:
Response of N Fertilizer Rates on Growth,Yield and
Quality of ‘Shuguang’ Nectarine
作者:
杨颖; 仇璇
上海市浦东新区农业服务中心航头站，上海 201201
Author(s):
YANG Ying; QIU Xuan
Hangtou Station of the Promotion Center of Agricultural Technique in Pudong,Shanghai 201201
关键词:
桃树; 施氮水平; 产量; 品质
Keywords:
nectarine; N fertilizer; yield; quality
DOI:
10.11937/bfyy.20171981
文献标志码:
A
摘要:
以5年生“曙光”油桃为试验材料，设置不同施氮水平（100（N1）、200（N2）、300（N3）、400 kg?hm-2（N4）），以不氮肥处理为对照（CK），研究施氮量对长江三角洲地区“曙光”油桃生长、产量和品质的影响。结果表明：增施氮肥能够显著促进“曙光”油桃新梢的生长，新梢长度随施氮量的增加而增加；施氮可显著提高“曙光”油桃的产量和单果质量，但超过200～300 kg?hm-2后氮肥增产效果不明显，氮的农学效率和偏生产力显著降低。氮肥显著影响“曙光”油桃的外观品质和内在品质。合理的施用氮肥有利于增加长江三角洲地区“曙光”油桃的果实纵径、横径和着色程度，提高果实可溶性固形物和可溶性糖含量，降低总酸度，提高果实糖酸比，改善果实品质和果实口感。但过量施用氮肥会影响油桃果实的着色程度，降低油桃可溶性固形物、维生素C含量和可溶性糖含量，不利于曙光油桃品质的提升。
Abstract:
Different rates of N fertilizer,such as no fertilizer treatment (the control treatment,CK),100 kg?hm-2 (N1),200 kg?hm-2 (N2),300 kg?hm-2 (N3),and 400 kg?hm-2 (N4) were conducted,to study the response of N fertilizer rates on growth,yield and quality of ‘Shuguang’ nectarine.The results showed that N fertilizer applied could significant improve the growth of nectarine shoot,which gradually increased as N rates increase.Compared to CK treatment,N fertilizer applied could develop the nectarine yield and fruit weight;however when more than 200-300 kg?hm-2,agronomic N use efficiency and partial N factor productivity significantly reduced as yield increasing basically stagnated.Meanwhile,N fertilizer significant influenced the appearance and inner quality of ‘Shuguang’ nectarine.Reasonable N application rate could increase nectarine longitude,lateral and coloring,and improve nectarine soluble solids content,vitamin C,and soluble sugar,while decrease acid content,to improve nectarine quality and flavor.However,luxury N fertilizer applied could reduce nectarine coloring,soluble solids content,vitamin C,soluble sugar.In conclusion,to improve nectarine yield and quality,N rate should be applied scientifically and reasonably.

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备注/Memo

第一作者简介：杨颖（1984-），女，本科，农艺师，现主要从事桃树栽培推广等研究工作。E-mail：cheshg@126.com.

基金项目：上海市科技攻关资助项目 (2014-26)。
收稿日期：2017-07-13

更新日期/Last Update: 2017-12-19