| 湖北四种典型土壤硫肥效应 |
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| 引用本文： | 程炯,郑泽厚,吴志峰,刘平.湖北四种典型土壤硫肥效应[J].土壤通报,2005,36(5):720-722. |
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| 作者姓名： | 程炯 郑泽厚 吴志峰 刘平 |
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| 作者单位： | 1. 广东省生态环境与土壤研究所,广东,广州,510650
2. 湖北大学,生态所,湖北,武汉,430062 |
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| 基金项目： | 中澳合作项目7658号,广东省农业科技攻关项目(2003C20512)和广东省科学院优秀人才基金项目联合资助 |
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| 摘 要： | 选择黄棕壤、红壤、灰潮土和水稻土等湖北省四种主要土壤类型,对油菜和水稻分别进行盆栽和田间硫肥试验。试验结果表明:黄棕壤、红壤和灰潮土三种土壤盆栽油菜施用硫肥后,均能促进油菜的生长发育并增加油菜的干物重,但总体上施石膏的效应比施硫磺要好。水稻土田间水稻硫肥试验后,明显提高了水稻产量,但施硫磺粉的效果要比施石膏好,前者的增产率达到27.44%,后者是14.88%。试验前后土壤有效硫的变化进一步说明施用硫肥可以维持土壤硫素平衡,满足作物营养需求。使用澳大利亚KC l—40方法测定土壤有效硫含量,能反映土壤供硫水平与作物产量的相关性,这对于指导我国农业生产具有重要的意义。
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| 关 键 词： | 土壤 硫肥 盆栽试验 田间试验 |
| 文章编号： | 0564-3945(2005)05-0720-03 |
| 修稿时间： | 2004年6月7日 |
Role of Sulphur Fertilizers on the Four Representative Soils in Hubei Province |
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| CHENG Jiong,ZHENG Ze-hou,WU Zhi-feng,LIU Ping.Role of Sulphur Fertilizers on the Four Representative Soils in Hubei Province[J].Chinese Journal of Soil Science,2005,36(5):720-722. |
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| Authors: | CHENG Jiong ZHENG Ze-hou WU Zhi-feng LIU Ping |
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| Institution: | CHENG Jiong~1,ZHENG Ze-hou~2,WU Zhi-feng~1,LIU Ping~1 |
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| Abstract: | Four representative soils,Brown soil,Red soil,Grey soil and Paddy soil were selected in Hubei Province,on which the pot trial for rape and the field experiment for rice were carried.There were four treatments on each soil,including control without nutrient addition(CK),nutrients without S(NPK) ,nutrients with elemental S(NPK S),and nutrients with CaSO_4(NPK CaSO_4).And there were four replicates for each treatment.Soil-available S was tested using the technology of sulfur testing(KCl-40 method)from Australia.The result showed:The pot trial of rape on Brown soil,Red soil and Grey soil respectively,that application of CaSO_4 or elemental S accelerated growth of rape and increased their dry weight.And the effect of applying CaSO_4 was better than thot of applying elemental S.The field experiment of paddy soil for rice,that the S fertilizer could increase rice yields,and the rate of increase production applying elemental S,which was 27.44%,better than applying CaSO_4,which was 14.88%.It was necessary to fertilize S which can maintain the balance of S in soils,and meet the plants needed.It was showed that the KCl-40 method,which determined available S content in soils,could indicate the relationship between crop yield and the S-supplying ability of soils. |
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| Keywords: | Soil Sulphur fertilizer Pot trial Field experiment |
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