| 磷石膏改良剂对江苏如东滨海盐土理化性状及小麦生长的影响 |
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| 引用本文： | 吴洪生,陈小青,周晓冬,杨筱楠,石佑华,满 军,吴红兵.磷石膏改良剂对江苏如东滨海盐土理化性状及小麦生长的影响[J].土壤学报,2012,49(6):1262-1266. |
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| 作者姓名： | 吴洪生 陈小青 周晓冬 杨筱楠 石佑华 满 军 吴红兵 |
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| 作者单位： | 南京信息工程大学 |
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| 基金项目： | 江苏省六大人才高峰资助计划（2009241） |
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| 摘 要： | 江苏沿海地区有大量的滨海盐土，植物难以生长，如能改良，是一种重要的农业资源。本文以如东滩涂滨海盐土为研究对象，采用室内盆栽试验，研究施用磷石膏改良剂对滨海盐土的改良效果。结果表明：磷石膏改良剂能有效的促进小麦的生长，改良剂5的小麦株高比对照2增加47.4%和68.3%，生物量分别增加66.7%和74.4%；随着磷石膏改良剂的用量增加，土壤的养分含量逐渐提高，特别是速效磷，改良剂5比对照1分别增加245.8%和463.4%；土壤盐分由原来的有害氯化钠盐占主导转变为对植物无害的硫酸盐，优化了土壤盐分组合；同时土壤的PH下降，与对照1比，下降幅度分别为7.4%和13.7%，且PH值与磷石膏改良剂的用量呈负相关，说明磷石膏对滨海盐土有很好的改良效果。
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| 关 键 词： | 磷石膏，滨海盐土，改良，小麦 |
| 收稿时间： | 2011/11/14 0:00:00 |
| 修稿时间： | 3/28/2012 7:14:57 PM |
Effects of soil amendment Phosphogypsum on physical and chemical properties of and wheat growth in coastal saline soil in Rudong, Jiangsu |
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| Wu Hongsheng,Chen Xiaoqing,Zhou Xiaodong,Yang Xiaonan,Shi Youhu,Man Jun and Wu Hongbing.Effects of soil amendment Phosphogypsum on physical and chemical properties of and wheat growth in coastal saline soil in Rudong, Jiangsu[J].Acta Pedologica Sinica,2012,49(6):1262-1266. |
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| Authors: | Wu Hongsheng Chen Xiaoqing Zhou Xiaodong Yang Xiaonan Shi Youhu Man Jun and Wu Hongbing |
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| Institution: | Nanjing University of Information Science and Technology |
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| Abstract: | There is a lot of coastal saline soil in coastal jiangsu which plants can not adapt to grow. It will become an important resource after well-improving. In the current work,greenhouse pot experiments were conducted to study amending effect of phosphogypsum conditioner on coastal saline soil in Rudong. The results show that: phosphogypsum conditioner can effectively promote the growth of wheat, which plant height of conditioner 5 increased by 47.4% and 68.3% ,and biomass increased by 66.7% and 74.4% compared with ck2. Soil nutrient content is gradually increasing depending on usage of amendments, especially available P, which was increased by 245.8% and 463.4% compared by ck1; soil salinity changed from sodium chloride type salt which is harmful to plant into sulfate type which is harmless to plant. Phosphogypsum conditioner can optimize combination of soil salinity; while soil PH was decreased by 7.4% and 13.7% compared by ck1, PH value and the amount of phosphogypsum conditioner are negatively correlated. All this indicate phosphogypsum well improves coastal saline soil. |
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| Keywords: | phosphogypsum coastal saline soil improvement wheat |
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