土壤鹽堿化是當(dāng)今世界土壤退化問題最嚴(yán)重的問題之一。盡管土壤鹽堿化程度在全世界范圍內(nèi)都有所增加,但是單施或混合施用有機(jī)肥被認(rèn)為是具有潛力的改良土壤鹽堿化的措施。鹽堿土土壤生產(chǎn)力低,因此改良土壤鹽堿化以提高作物產(chǎn)量迫在眉睫。有學(xué)者建議向鹽堿土壤施用有機(jī)改良劑（生物炭+有機(jī)肥）來提高鹽堿土的土壤肥力和改善理化性質(zhì)。本試驗(yàn)采用560^℃和800^℃高溫產(chǎn)生的生物炭混合有機(jī)肥（豬糞）,來探究生物質(zhì)炭單施、有機(jī)肥單施和生物炭有機(jī)肥混合施用對鹽堿土改良的適用性和持久性。本試驗(yàn)處理包括:不施用改良劑（T0）,單施生物炭15 t·ha^-1（T1）,單施生物炭30 t·ha^-1（T2）,單施豬糞15 t·ha^-1（T3）,單施豬糞30 t·ha^-1（T4）,混合施用生物炭豬糞共15 t·ha^-1（T5）,混合施用生物炭豬糞共30 t·ha^-1（T6）,以上每種處理施加在兩個土層中（0-15和15-30 cm）。土壤有效養(yǎng)分含量連續(xù)測定兩... 

【文章來源】：東北農(nóng)業(yè)大學(xué)黑龍江省 211工程院校

【文章頁數(shù)】：134 頁

【學(xué)位級別】：博士

【文章目錄】：
摘要
Abstract
1 Introduction
    1.1 Land degradation
    1.2 Biochar
    1.3 Organic Manures
    1.4 Literature Review
        1.4.1 Saline, Sodic and Saline-sodic Soils
        1.4.2 Salinity
        1.4.3 Sodicity
        1.4.4 Salinity and Sodicity
        1.4.5 Problem of Soil Salinization and Sodicity
        1.4.6 Salinity and Sodicity influence on the Soil microbial community
        1.4.7 Soil Physico-chemical Properties as affected by Salinity and Sodicity
        1.4.8 Biochar Characterization as Influenced by Feedstock and Production Process
        1.4.9 Agronomic Significance of Biochar
    1.5 Biochar as Organic Amendment in Saline-sodic Soil
        1.5.1 Biochar-Soil Interaction with Nutrient Concentration in Soil
        1.5.2 Biochar and Manure on Soil Fertility
        1.5.3 Significance of research and hypothesis
2 Materials and methods
    2.1 Materials and Methods of Experiment 1
        2.1.1 Experimental Site, Soil sampling and Land preparation
        2.1.2 Biochar and Organic manure Amendment
        2.1.3 Experimental design
        2.1.4 Soil Analysis
        2.1.5 Biochar and Pig manure Analysis
        2.1.6 Statistical Analysis
    2.2 Materials and Methods in Experiment 2
        2.2.1 Experimental location and Duration
        2.2.2 Soil sampling and Analysis
        2.2.3 Soil Microbial Biomass
        2.2.4 Soil Treatment and Experimental design
        2.2.5 Statistical Analysis
3 Result Analyses
    3.1 Experiment 1: Effect of biochar (560℃) and Organic manure on Agronomic Propertiesand Nutrient Uptake
        3.1.1 Pre-cropping characteristics of the experimental soil
        3.1.2 Biochar and Pig Manure Characterization
    3.2 Agronomic Properties
        3.2.1 Effect of Biochar (560℃) and Pig manure on Plant height of Maize (cm)
        3.2.2 Effect of Biochar (560℃) and Pig manure on Stem girth (cm)
        3.2.3 Nutrient Uptake in plant as influenced by Biochar (560℃) and Pig manureapplication
        3.2.4 Macronutrient uptake in shoot dry biomass as influenced by biochar (560℃) andpig manure application
        3.2.5 Micronutrient uptake in shoot dry biomass as influenced by biochar (560℃) andpig manure application
        3.2.6 N, P and K in root dry biomass as influenced by biochar (560℃) and pig manureapplication
        3.2.7 Micronutrient in root as influenced by biochar (560℃) and pig manure application
        3.2.8 Effect of biochar (560℃) and pig manure application on Maize Grain Yield (t/ha)
    3.3 Experiment 1b: Effect of Biochar (800℃) and Organic manure on AgronomicProperties and Nutrient Uptake
        3.3.1 Effect of Biochar (800℃) and Pig manure on Plant height and Stem girth of maize(cm)
        3.3.2 Nutrients Uptake in plant as influenced by Biochar (800℃) and Organic manureapplication
        3.3.3 Macronutrient uptake in shoot dry biomass as influenced by biochar (800℃) andPig manure application
        3.3.4 Micronutrient uptake in shoot dry biomass as influenced by biochar (800℃) andPig manure application
        3.3.5 Root dry biomass as influenced by biochar (800℃) and pig manure application .. 38
        3.3.6 The concentration of micronutrients in Root as influenced by biochar (800℃) andpig manure application
        3.3.7 Effect of biochar (800℃) and pig manure application on Maize Yield (t/ha)
    3.4 Experiment 2(a): Effect of Biochar (560℃) and Organic manure on Saline-sodic soilProperties
        3.4.1 Effect of biochar (560℃) and pig manure on Soil p H and EC
        3.4.2 Effect of biochar (560℃) and pig manure on Soil Organic C, Total N andAvailable P
        3.4.3 Effect of biochar (560℃) and pig manure application on Soil Available Bases
        3.4.5 Effect of biochar (560℃) and pig manure on DTPA Extractible micronutrients
        3.4.7 Effect of biochar (560℃) and pig manure on Sodium Adsorption Ratio and Soil NaPercentage
        3.4.8 Effect of biochar (560℃) and pig manure on ESP, TEB and PAR
        3.4.9 Effect of biochar (560℃) and pig manure on soil microbial biomass activities
    3.5 Experiment 2(b): Effect of biochar (800℃) and Organic manure on Saline-sodic soilProperties
        3.5.1 Effect of biochar (800℃) and pig manure on soil p H and EC
        3.5.2 Effect of biochar (800℃) and pig manure on Soil Organic C, Total N andAvailable P
        3.5.3 Effect of biochar (800℃) and pig manure application on Soil Available Bases
        3.5.4 Effect of biochar (800℃) and pig manure on DTPA extractible trace-nutrients
        3.5.5 Effect of biochar (800℃) and pig manure on Sodium Adsorption Ratio and Soil NaPercentage
        3.5.6 Effect of biochar (800℃) and pig manure on ESP, TEB and PAR
        3.5.7 Effect of biochar (800℃) and pig manure on soil microbial biomass activities
    3.6 Experiment 2: Incubation Study
        3.6.1 Experiment 2a: Effect of biochar on soil chemical and microbial properties
        3.6.2 Effect of biochar (560℃) application and incubation days on Soil p H and EC
        3.6.3 Effect of biochar (560℃) and incubation days on soil organic carbon, availablephosphorus and total nitrogen
        3.6.4 Effect of biochar (560℃) application and incubation days on exchangeable bases
        3.6.5 Effect of biochar (560℃) and incubation days on micronutrients
        3.6.6 Effect of biochar (560℃) and Incubation days on SAR, SNa% and PAR
        3.6.7 Effect of biochar (560℃) and incubation days on soil microbial biomass carbon, nitrogen and phosphorus
    3.7 Experiment 2b
        3.7.1 Effect of biochar (800℃) and incubation days on soil p H and EC
        3.7.2 Effect of biochar (800℃) and incubation days on soil organic carbon, availablephosphorus and total nitrogen
        3.7.3 Effect of biochar (800℃) and incubation days on soil exchangeable bases
        3.7.4 Effect of biochar (800℃) and incubation days on soil micronutrients
        3.7.5 Effect of biochar and incubation days on Sodium Adsorption Ratio, SolubleSodium Percentage and Potassium Adsorption Ratio
        3.7.6 Effect of biochar (800℃) and incubation days on microbial biomass carbon, nitrogen and phosphorus
4 DISCUSSIONS
    4.1 Effect of biochar and pig manure on plant growth and Nutrient uptake
    4.2 Effect of biochar and pig manure on soil physico-chemical properties
    4.3 Effect of High pyrolysis Biochar and Organic manure on soil Physico-chemicalproperties
    4.4 Effect of biochar and organic manure on soil microbial biomass activities
    4.5 Effect of biochar application and incubation days under an incubation study
5 Conclusion
Acknowledgement
References
Publication in View



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