黃瓜（Cucumis sativus L.）是世界上最重要的園藝作物之一,農(nóng)業(yè)上過量使用氮肥會造成嚴(yán)重土壤和地下水污染,故減少化肥使用刻不容緩。本試驗中使用紅磚槽培的方式,槽深30cm,分為3層,每層10 cm,最上層為沙子,中間層進(jìn)行不同處理,最下層使用椰糠作為基質(zhì),并將這種栽培方式稱為“三明治”無土栽培系統(tǒng),本研究的目的是確定該栽培系統(tǒng)的最佳沙子厚度,有機(jī)肥與基質(zhì)的最佳劑量比,有機(jī)肥與無機(jī)肥的最佳配比,以及營養(yǎng)液中NO₃^--N/NH₄⁺-N的最佳配比。試驗采用完全隨機(jī)區(qū)組設(shè)計,主要結(jié)果如下:1、不同沙層厚度對栽培基質(zhì)水分和溫度的影響。在30 cm椰糠的基礎(chǔ)上,添加不同厚度（0,5,10,15,20 cm）的沙子分別記為T1-對照,T2,T3,T4,T5處理,在椰糠上面覆蓋一層地膜作為T6處理。結(jié)果表明,試驗期間溫度保持最穩(wěn)定的處理是T3,T5處理由于使用過量的沙子在經(jīng)濟(jì)性方面是不可行的,而且和T1間無顯著差異,而塑料膜作為覆蓋物的T6處理溫度過高。2、栽培基質(zhì)中不同水平有機(jī)肥對黃瓜生長和產(chǎn)量的影... 

【文章來源】：中國農(nóng)業(yè)科學(xué)院北京市

【文章頁數(shù)】：131 頁

【學(xué)位級別】：博士

【文章目錄】：
附表
摘要
ABSTRACT
Abbreviations
CHAPTER 1:INTRODUCTION
    1.1.Cucumber(Cucumis sativus L.)
    1.2.Resource management
    1.3.Soilless culture
        1.3.1.Categories of soilless culture
        1.3.2.Substrate culture
        1.3.3.Water culture(Hydroponics)
        1.3.4.Advantages of substrate soilless culture
    1.4.Fertilizers
        1.4.1.Inorganic fertilizers
        1.4.2.Organic manure
        1.4.3.Advantages of organic fertilizers
        1.4.4.Poultry manure
        1.4.5.Poultry manure in combination with inorganic
        1.4.6.Nitrogen Forms
    1.5.Objectives of the study
CHAPTER 2:Effect of Different Sand Thickness on Moisture and Temperature change in Substrate
    2.1.Summary
    2.2.Introduction
    2.3.Material and methods
        2.3.1.Materials Collections
        2.3.2.Treatment and Experimental Design
        2.3.3.Measurements
        2.3.4.Samples collection
        2.3.5.Moisture content measurement
        2.3.6.Measurement of water evaporation
        2.3.7.Substrate temperature
    2.4.Statistical analysis
    2.5.Results
        2.5.1.Moisture content measurement
        2.5.2.Substrate temperature
    2.6.Discussion
        2.6.1.Moisture content
        2.6.2.Substrate temperature
    2.7.Conclusion
CHAPTER 3:Effect of Different Amounts of Organic Manure on Cucumber Growth and Yield Grown in Substrates
    3.1.Summary
    3.2.Introduction
    3.3.Material and Methods
        3.3.1.Materials collections
        3.3.2.Growing media and treatments
        3.3.3.Morphological characteristics
        3.3.4.Roots characteristics
        3.3.5.Physiological characteristics
        3.3.6.Mineral elements analysis
        3.3.7.Fruits characteristics
    3.4.Statistical analysis
    3.5.Results
        3.5.1.Morphological characteristics
        3.5.2.Root characteristics
        3.5.3.Physiological characteristics
        3.5.4.Mineral elements analysis
        3.5.5.Fruit characteristics
    3.6.Discussion
        3.6.1.Vegetative characteristics
        3.6.2.Fruits characteristics
        3.6.3.Mineral elements
    3.7.Conclusion
CHAPTER 4:Effect of Mixed Organic Manure with Inorganic Fertilizers on Growth,Yield,and Fruit quality of Cucumber Grown in soilless Culture
    4.1.Summary
    4.2.Introduction
    4.3.Material and Methods
        4.3.1.Materials collections
        4.3.2.Growing media and treatments
        4.3.3.Measurements
    4.4.Results
        4.4.1.Morphological characteristics
        4.4.2.Root characteristics
        4.4.3.Physiological characteristics
        4.4.4.Mineral elements analysis
        4.4.5.Fruit characteristics
    4.5.Discussion
        4.5.1.Vegetative characteristics
        4.5.2.Fruits characteristics
        4.5.3.Mineral elements
    4.6.Conclusion
CHAPTER 5:Effect of NO3~--N/NH4~+-N Ratio in on Cucumber Growth,Nitrogen Metabolism,Fruit Quality and Yield in Soilless Culture
    5.1.Summary
    5.2.Introduction
    5.3.Material and Methods
        5.3.1.Materials collections
        5.3.2.Growing media and treatments
        5.3.3.Measurements
        5.3.4.Biochemical characteristics
        5.3.5.Antioxidant enzyme activities
        5.3.6.Fruits characteristics
    5.4.Results
        5.4.1.Morphological characteristics
        5.4.2.Root Characteristics
        5.4.3.Physiological characteristics
        5.4.4.Biochemical characteristics
        5.4.5.Antioxidant enzyme activities
        5.4.6.Mineral elements
        5.4.7.Fruit qualities
        5.4.8.Fruits Yield
    5.5.Discussion
        5.5.1.Vegetative characteristics
        5.5.2.Fruits characteristics
        5.5.3.Enzymes activity
        5.5.4.Mineral elements
    5.6.Conclusion
CHAPTER 6:GENERAL CONCLUSION
REFRENCES
ACKNOWLEDGEMENTS
CURRICULUM VITAE



本文編號：3310491