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一种调理剂对滨海盐碱地的改良效应研究【字数:12709】

2024-11-02 13:09编辑: www.jxszl.com景先生毕设

目录
摘要Ⅲ
关键词Ⅲ
AbstractⅣ
引言
引言(或绪论)1
1材料与方法2
1.1采样区概况 2
1.2研究材料 2
1.3研究方法 2
1.3.1土壤理化性质2
1.3.2植物数据测定方法3
1.4数据处理与分析4
2结果与分析4
2.1施改良剂与土壤含盐量的关系4
2.1.1条子泥区土壤含盐量的变化4
2.1.2顺泰农场土壤含盐量的变化4
2.2施改良剂与土壤pH的关系5
2.2.1条子泥区土壤pH的变化5
2.2.2顺泰农场土壤pH的变化6
2.3施改良剂与土壤有机质含量的关系7
2.3.1条子泥区土壤有机质的变化7
2.3.2顺泰农场土壤有机质含量的变化7
2.4施改良剂与土壤各离子的关系8
2.4.1条子泥区土壤各离子的变化8
2.4.2顺泰农场土壤各离子的变化10
2.5施改良剂与土壤养分的关系12
2.5.1条子泥区土壤养分的变化12
2.5.2顺泰农场土壤养分的变化13
2.6施改良剂与土壤蔗糖酶的关系15
2.6.1条子泥区土壤蔗糖酶的变化15
2.6.2顺泰农场土壤蔗糖酶的变化16
2.7施改良剂与植物养分的关系16
2.7.1施改良剂与植物全氮的关系16
2.7.2施改良剂与植物全磷的关系18
2.7.3施改良剂与植物全钾的关系18
3讨论与结论19
3.1施改良剂后土壤含盐量的变化19
3.2 施改良剂后土壤pH的变化20
3.3 施改良剂后土壤有机质含量的变化20
3.4 施改良剂后土壤各离子的变化20
3.5 施改良剂后土壤养分的变化20
3.6 施改良剂后土壤蔗糖酶的变化20
3.7 施改良剂后植物营养元素的变化 20
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/> 致谢21参考文献21
一种调理剂对滨海盐碱地的改良效应研究
摘 要
土壤盐渍化是指盐分在自然地质条件下累积到土壤表面形成盐渍土壤的过程。滨海盐渍土是盐渍土的一个亚类,它是从沿海地区的盐渍土发展而来的。我国沿海盐碱地分布广泛,沿海地区土地盐碱化和次生盐渍化问题十分严重。如果将滨海盐碱地改造成适宜耕种的土地,将大大减轻占用农业用地的压力,缓和海滨地区用地资源日渐紧张的局面。本研究以江苏省东台市条子泥垦区和顺泰农场的滨海盐渍土为研究对象,进行野外田间试验发现,土壤调理剂“盐怕”的施用可有效降低盐碱化土壤的含盐量,加速滨海盐土脱盐及脱碱效率,增加有机质含量,提高土壤养分和蔗糖酶活性,并使在滨海盐土上栽种的小麦和水稻的养分含量增加,为今后的推广和应用提供了理论依据,对改善滨海盐渍土及农作物增产具有一定的指导意义。
Study on the Improvement Effect of a Conditioner on Coastal Salinealkali Land
ABSTRACT
Soil salinization refers to the process by which salt accumulates on the surface of the soil to form saline soil under natural geological conditions. Coastal saline soil is a subcategory of saline soil, which is developed from saline soil in coastal areas. The coastal salinealkali land in China is widely distributed, and the problems of land salinization and secondary salinization in coastal areas are very serious. If the coastal salinealkali land is transformed into suitable land for cultivation, it will greatly reduce the pressure on occupying agricultural land and alleviate the increasingly tense situation of land resources in coastal areas. In this study, the coastal saline soils in the Tiaozi mud reclamation area and Shuntai Farm of Dongtai City, Jiangsu Province were used as the research objects. Field tests in the field found that the application of the soil conditioner "salt fear" can effectively reduce the salinity of the salinized soil and accelerate The efficiency of desalination and desalination of coastal saline soil increases organic matter content, improves soil nutrient and invertase activity, and increases the nutrient content of wheat and rice planted on coastal saline soil, providing a theoretical basis for future promotion and application, and improving coastal Saline soil and crop yield increase have certain guiding significance.

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