| 肥料与石膏配施对滨海盐土有效磷的影响 |
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| 引用本文： | 李孝良,倪玉常,李磊,陈效民,王晓洋.肥料与石膏配施对滨海盐土有效磷的影响[J].安徽科技学院学报,2012,26(2):35-39. |
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| 作者姓名： | 李孝良 倪玉常 李磊 陈效民 王晓洋 |
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| 作者单位： | 1. 安徽科技学院城建与环境学院,安徽凤阳,233100
2. 南京农业大学资源与环境科学学院,江苏南京,210095 |
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| 基金项目： | 公益性行业(农业)科研专项经费，安徽省教育厅自然基金项目 |
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| 摘 要： | 通过盆栽试验,研究了肥料与石膏配施条件下滨海盐土有效磷变化特征,结果表明,(1)不同肥料与石膏配施条件下,滨海盐土有效磷含量以有机无机复混肥(F2)处理较高,而以单施石膏2g/kg(F0B2)处理较低。(2)磷肥施用可显著提高滨海盐土有效磷含量,供试肥料品种间滨海盐土有效磷含量以有机无机复混肥处理(F2)、无机复混肥(F1)处理最高,其次为生物有机无机复混肥(F4)和生物有机肥(F3),以空白对照(F0)最低。(3)随石膏用量增加,土壤有效磷呈显著降低趋势。(4)滨海盐土有效磷含量存在明显动态变化特征,肥料施用后有效磷总体上呈现先增加后降低趋势,最终回复到施肥前水平。(5)从土壤有效磷角度考虑,滨海盐土肥料农业施用以有机无机复混肥(F2)较为适宜。
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| 关 键 词： | 滨海盐土 有效磷 肥料 石膏 |
Effects of Fertilizer and Gypsum Combined Application on Soil Available Phosphorus in Coastal Saline Soil |
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| LI Xiao-liang,NI Yu-chang,LI Lei,CHEN Xiao-min,WANG Xiao-yang.Effects of Fertilizer and Gypsum Combined Application on Soil Available Phosphorus in Coastal Saline Soil[J].Journal of Anhui Science and Technology University,2012,26(2):35-39. |
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| Authors: | LI Xiao-liang NI Yu-chang LI Lei CHEN Xiao-min WANG Xiao-yang |
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| Institution: | 1.College of Urban Construction and Environmental Sciences,Anhui Science and Technology University,Fengyang 233100,China; 2.College of Resources and Environmental Sciences,Nanjing Agricultural University,Nanjing 210095,China) |
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| Abstract: | The variation characteristics of the available phosphorus(P) in coastal saline soil under combined application of fertilizer and gypsum were studied by pot experiments.The results showed as follows.(1) The soil available P content of organic-inorganic compound fertilizer(F2) treatment was higher than other treatments,and that of single application of 2g/kg gypsum(F0B2) treatment was lower.(2) Application of phosphate fertilizer could significantly increase the available P contents in coastal saline soil.The order of soil P contents of the tested fertilizer varieties was organic and inorganic compound fertilizer(F2) and,inorganic compound fertilizer(F1) > bio-organic and inorganic compound fertilizer(F4) and bio-organic fertilizer(F3) > blank control(F0).(3) With the increased use of gypsum,soil available phosphorus contents were remarkably decreasing.(4) The contents of available P in coastal saline soil had obvious dynamic change.With the addition of fertilizer application,the available P contents presented increasing firstly,then decreasing,and finally back to the levels before.(5) From the view of soil available P,the treatment of organic and inorganic compound fertilizer(F2) was appropriate to agricultural application in coastal saline soil. |
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| Keywords: | Coastal saline soil Available phosphorus Fertilizer Gypsum |
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