摘要
为解决滨海盐碱地结构性差,肥力低下的问题,探究有机硅复合肥对滨海盐碱地土壤物理特性及夏玉米产量的影响,于2020年6月-2020年10月,在河北省沧州海兴县开展夏玉米大田试验。试验共设置5个处理,分别为:施用当地化肥二铵600 kg/hm^(2)(T1),有机硅复合肥375 kg/hm^(2)(T2)、750 kg/hm^(2)(T3)、1125 kg/hm^(2)(T4),以及仅施底肥空白对照组(CK)。试验通过测定夏玉米0~40 cm土层的土壤物理特性指标及玉米产量,量化分析有机硅复合肥对滨海盐碱土的改良效果,进一步分析土壤物理特性指标与玉米产量之间的相关性。结果表明:不同处理间,0~40 cm各土层的土壤物理特性指标及玉米产量呈显著性差异,随着有机硅复合肥施用量的增加,土壤容重随之减少,土壤孔隙度,田间持水量、饱和含水量和土壤累积吸水量随之增加,产量随之增加;土壤改良和增产效果表现为T4>T3>T1>T2;容重、孔隙度、田间持水量和饱和含水量两两之间具有极显著相关性,表层土壤物理特性指标与产量呈极显著与显著相关,下部土壤的相关性不显著,随着土层深度的增加,相关性降低。对滨海盐碱地施用有机硅复合肥,可有效改善土壤结构,增强土壤通气性和保水能力,降低盐分对玉米生长的影响,从而提高玉米产量。
In order to solve the problems of poor structure and low fertility of coastal saline-alkali land,and explore the influence of organic silicon compound fertilizer on soil physical characteristics of coastal saline-alkali land and summer corn yield,the field test of summer corn was carried out in Haixing County,Cangzhou,Hebei Province from June 2020 to October 2020.Five treatments were set up in the experiment,including local ammonium 600 kg/hm^(2)(T1),silicone compound fertilizer 375 kg/hm^(2)(T2),750 kg/hm^(2)(T3),1125 kg/hm^(2)(T4),and basal fertilizer only blank control group(CK).By measuring the soil physical characteristics of 0~40 cm soil layer and corn yield,the improvement effect of organic silicone compound fertilizer on coastal saline and alkali soil was quantified,and the correlation between soil physical characteristics and corn yield was further analyzed.The results show that:the soil physical characteristics index and corn yield of 0~40 cm soil layer are significantly different.With the increase of silicone compound fertilizer application,the soil capacity decreases,soil porosity,field water holding,saturated water content and soil accumulated water absorption increase,and the yield increases accordingly.The effect of soil improvement and yield increase is T4>T3>T>T1>T2.There was a very significant correlation between bulk density,porosity,field water capacity and saturated water content.The physical properties of surface soil showed a very significant correlation with yield,while the correlation of lower soil was not significant,and the correlation decreased with the increase of soil depth.Applying organosilicon compound fertilizer to coastal saline-alkali land can effectively improve soil structure,enhance soil aeration and water retention,reduce the effect of salinity on corn growth,and thus increase corn yield.
作者
武海霞
康佳腾
宋福如
宋利强
宋继强
任瑞瑞
郭海刚
程东娟
WU Hai-xia;KANG Jia-teng;SONG Fu-ru;SONG Li-qiang;SONG Ji-qiang;REN Rui-rui;GUO Hai-gang;CHENG Dong-juan(School of Water Conservancy and Hydroelectric Power,Hebei University of Engineering,Handan 056038,Hebei Province,China;Hebei Provincial Key Laboratory of Smart Water Conservancy,Handan 056038,Hebei Province,China;Hebei Silicon Valley Fertilizer Co.,LTD,Handan 057154,Hebei Province,China)
出处
《节水灌溉》
北大核心
2023年第5期114-121,共8页
Water Saving Irrigation
基金
河北省自然科学基金面上资助项目(D2019402151)
邯郸市科学技术研究与发展计划项目(19112012018,21422012330)
河北工程大学创新基金资助项目。
关键词
有机硅复合肥
滨海盐碱地
夏玉米
产量
土壤物理特性
盐碱地改良
organic silicon compound fertilizer
coastal saline-alkali land
summer corn
yield
soil physical characteristics
salinealkali land improvement
