摘要
试验采取5因素多水平组合设计,模拟1～20a灌溉4～5gL-1微咸水及施用不同改良剂对土壤理化性状的影响。试验结果表明:与对照相比,施用4种改良剂土壤水稳性团聚体增加了12.71～45.81%。施用磷石膏1～20a,提高了土壤初始入渗率10.23%。施用磷石膏、沸石40%+磷石膏60%土壤总碱度比对照分别下降了25.74%和10.53%,土壤碱量(AP)分别下降了25.00%、41.67%,Cl-/SO42-比率分别下降了39.20%和57.00%,土壤钠吸附比(SAR)分别下降了99.99%和80.79%。
The experiment was designed in combinatory process with five factors at multilevel in order to study the effects on soil physics and chemistry characters under irrigated soil with 4-5g L-1 bedding brackish water and using different modifiers for 1-20 years. The results showed that the soil water stable aggregates of the four modifiers treatments was increased by from 12.71% to 45.81% over that of CK. The soil initial infiltration rate was increased by 10.23% with the application of Phosphogypsum for 1-20 years. Compared with CK, soil total alkalinity of 100% phosphogypsum and zeolite 40%＋ Phosphogypsum 60% treatments respectively deceased 25.74% and 10.53%, soil alkalinity percent （AP） decreased 25.00% and 41.67%, soil Cl-/SO42- ratio decreased 39.20% and 57.00%, soil sodium adsorption ratio decreased 99.99% and 80.79%.
出处
《土壤通报》
CAS
CSCD
北大核心
2009年第4期913-916,共4页
Chinese Journal of Soil Science
基金
天津市科技发展计划项目(993121711)
关键词
微咸水
灌溉
模拟试验
土壤改良剂
土壤理化性质
Bedding brackish water
Irrigation
Model Experiment
Soil modifier
Soil qualities
