|本期目录/Table of Contents|

[1]刘小粉,刘春增,贾萌萌,等.化肥减施条件下紫云英翻压量对土壤物理特性和水稻产量的影响[J].江苏农业科学,2021,49(16):67-73.
 Liu Xiaofen,et al.Effects of Astragalus vulgaris application amount on soil physical properties and rice yield under condition of reduced chemical fertilizer application[J].Jiangsu Agricultural Sciences,2021,49(16):67-73.
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化肥减施条件下紫云英翻压量对土壤物理特性
和水稻产量的影响
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第49卷
期数:
2021年第16期
页码:
67-73
栏目:
遗传育种与耕作栽培
出版日期:
2021-08-20

文章信息/Info

Title:
Effects of Astragalus vulgaris application amount on soil physical properties and rice yield under condition of reduced chemical fertilizer application
作者:
刘小粉1刘春增2贾萌萌1潘兹亮3
1.河北工程大学,河北邯郸 056038; 2.河南省农业科学院植物营养与资源环境研究所,河南郑州 450002;3.信阳市农业科学院,河南信阳 464000
Author(s):
Liu Xiaofenet al
关键词:
紫云英化肥减施持水能力土壤容重孔隙度团聚性土壤养分水稻产量
Keywords:
-
分类号:
S152.4;S511.06
DOI:
-
文献标志码:
A
摘要:
为明确不同紫云英翻压量对土壤物理特性和水稻产量的影响,研究设置不施肥(CK)、仅施化肥(F100%)、60%化肥分别与15 000、22 500、30 000、37 500 kg/hm2紫云英配施(依次为F60%+GM1、F60%+GM2、F60%+GM3、F60%+GM4)6个长期定位试验处理,研究土壤持水供水能力、容重、孔隙度、团聚性、土壤养分、水稻产量等的变化情况及其相关关系。结果表明:(1)与CK相比,60%化肥配施不同量紫云英使土壤容重降低9.8%~15.6%,F100%处理无变化;总孔隙度与容重相反,有效孔隙占比变化趋势为:CK≤F100%、F60%+GM4 、F60%+GM3、F60%+GM2≤F60%+GM1;持水供水能力表现为F60%+GM1、F60%+GM3≥F60%+GM4、F60%+GM2≥F100%≥CK;团聚体含量和稳定性在处理间无显著差异,但施紫云英处理均显著提高大团聚有机碳含量。(2)与CK相比,5个施肥处理均显著提高水稻产量,但相互间无显著差异。(3)相关分析表明,土壤持水能力与容重、孔隙度、有效孔隙比例、土壤有机碳、大团聚体有机碳、速效氮均显著相关;水稻产量不仅与以上土壤理化特性显著相关,标准回归系数进一步表明,影响水稻产量的因素排序为:速效磷>土壤有机碳>速效氮>容重>有效孔隙比例。综上所述,单施化肥对于土壤物理特性影响没有化肥-紫云英配施效果好,化肥施用量为60%时,紫云英施用量并非越高越好,用量为15 000~30 000 kg/hm2时综合效果最好。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2021-04-09
基金项目:国家自然科学基金(编号:41401246);河北省青年拔尖人才支持计划(第三批);国家绿肥产业技术体系建设专项(编号:CARS-22)。
作者简介:刘小粉(1985—),女,河南上蔡人,副教授,主要从事土壤施肥与植物营养相关研究。E-mail:liuxiaofenok@126.com。
更新日期/Last Update: 2021-08-20