|本期目录/Table of Contents|

[1]徐瑶,何玲莉,黄思杰,等.施硫方式及时期对不结球白菜营养品质与光合特性的影响[J].江苏农业科学,2017,45(23):115-120.
 Xu Yao,et al.Effects of methods and time of sulphur application on quality and photosynthetic characteristics of non-heading Chinese cabbage[J].Jiangsu Agricultural Sciences,2017,45(23):115-120.
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施硫方式及时期对不结球白菜营养品质
与光合特性的影响
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第45卷
期数:
2017年23期
页码:
115-120
栏目:
园艺与林学
出版日期:
2017-12-05

文章信息/Info

Title:
Effects of methods and time of sulphur application on quality and photosynthetic characteristics of non-heading Chinese cabbage
作者:
徐瑶1何玲莉1黄思杰2韩业飞2牟建梅1张国芹1
1.江苏太湖地区农业科学研究所,江苏苏州 215155; 2.南京农业大学资产经营公司,江苏南京 210000
Author(s):
Xu Yaoet al
关键词:
不结球白菜施硫方式施硫时间品质光合特性土施喷施
Keywords:
-
分类号:
S634.301
DOI:
-
文献标志码:
A
摘要:
研究土施、喷施2种施硫(Na2SO4)方式及不同施硫时期对不结球白菜植株产量、营养指标及光合作用的影响,以明确其最佳施硫方式和最适施硫时期。结果表明,土施及喷施2种施硫方式可显著提高植株地上部的生物量和维生素C含量,硝酸盐累积量显著降低(P<0.05);2种施硫方式能显著提高叶片的叶绿素a含量、叶绿素b含量、叶绿素总量、净光合速率(Pn)、水分利用效率(P<0.05);播种当天施硫,植株地上部的生物量、维生素C含量相对最低,硝酸盐累积量相对最高;播种后15 d施硫的地上生物量相对最大,播种后10 d施硫的维生素C含量相对最高,播种后10~15 d施硫可使植株硝酸盐含量有显著降低(P<0.05);播种后5 d施用硫肥,不结球白菜的叶绿素a、叶绿素b含量相对最低,而播种后15 d施硫的叶绿素a、叶绿素b含量相对最高,多显著高于其他处理(P<0.05);播种当天施硫的叶片Pn、蒸腾系数(Tr)、叶片胞间CO2浓度(Ci)相对最低,播种后15 d施硫的相应值相对最高。土施及喷施硫肥均能显著促进不结球白菜的生长发育,两者之间各指标多差异不显著,而土施操作相对简便,应采用土施方式进行施硫;播种后15 d为不结球白菜最适施硫时期,可明显提高不结球白菜的单株产量、营养品质及光合作用。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2016-06-21
基金项目:江苏省苏州市应用基础研究项目(编号:SYN201421);江苏省苏州市科技支撑项目(编号:SNG201437)。
作者简介:徐瑶(1988—),女,江苏南京人,硕士,研究实习员,长期从事蔬菜科学施肥技术研究。Tel:(0512)65386213;E-mail:xuchenyao@163.com。
更新日期/Last Update: 2017-12-05