間作種植是農(nóng)業(yè)生產(chǎn)中重要種植模式,與單作種植模式相比,間作種植有利于資源利用率及作物生產(chǎn)水平的提高。玉米與間作豆科作物也有助于青貯飼料粗蛋白水平的增加。玉米間作豆科作物通過(guò)優(yōu)化種植結(jié)構(gòu)、增加生物多樣性,進(jìn)而提高大田種植效率,最終實(shí)現(xiàn)綜合效果顯著超過(guò)單作模式。糧豆間作模式可以改善大田資源環(huán)境,如光照條件,土壤水分和溫度,減少病蟲(chóng)害損失,抑制雜草生長(zhǎng),降低生產(chǎn)風(fēng)險(xiǎn),增加農(nóng)民收入。另外,通過(guò)玉米間作大豆作物,又可以增加飼草產(chǎn)量、改善飼料品種,提高土壤肥力。因此,研究玉米-大豆不同間作模式的資源利用效率以及飼草產(chǎn)量和青貯飼料品質(zhì)變化規(guī)律對(duì)實(shí)現(xiàn)農(nóng)牧結(jié)合具有重要的理論指導(dǎo)價(jià)值。論文采用裂區(qū)完全隨機(jī)區(qū)組設(shè)計(jì),設(shè)五個(gè)處理,研究了玉米-大豆不同間作種植模式光、水資源的變化特征,以及飼草產(chǎn)量及青貯飼料的營(yíng)養(yǎng)成分變化規(guī)律。研究結(jié)果表明:玉米與大豆間作模式可以顯著增加鮮生物量和干物質(zhì)生產(chǎn),實(shí)現(xiàn)資源利用效率提高,如光合有效輻射(PAR)和土壤水分。玉米與大豆間作可以降低由于玉米生長(zhǎng)不佳,大豆葉片衰老期間漏光率。,提高光合利用效率。玉米與大豆間作對(duì)土壤溫度和土壤含水量也有顯著影響。五種處理所制作的青貯飼料,醚提取...

【文章頁(yè)數(shù)】：92 頁(yè)

【學(xué)位級(jí)別】：碩士

【文章目錄】：
摘要
Abstract
Chapter I INTRODUCTION
    1.1 Maize
        1.1.1 History and Origin
        1.1.2 Botany and Ecology
        1.1.3 Socio-Economic Importance
    1.2 Soybean
        1.2.1 History and Origin
        1.2.2 Botany and Ecology
        1.2.3 Socio-Economic Importance
    1.3 Intercropping
        1.3.1 Types of Intercropping
        1.3.2 Cereal-Legume Intercropping
        1.3.3 Advantages of Legumes in Intercropping
        1.3.4 Intercropping and Resource Utilization
        1.3.5 Assessing Yield Advantages of Intercropping
        1.3.6 Agronomic Importance of Intercropping
        1.3.7 Plant Density, Spacing and Spatial Arrangement in Cropping System
    1.4 Silage
        1.4.1 Silage Making
        1.4.2 Ensiling
    1.5 Proximate Analysis
    1.6 Objectives
    1.7 Research Route
Chapter II MATERIALS AND METHODS
    2.1 Description of Experimental Site
    2.2 Description of the Experimental Materials
    2.3 Treatments and Experimental Design
    2.4 Experimental Procedures
        2.4.1 Plant Cultivation and Fodder Production
        2.4.2 Silage Preparation
    2.5 Soil Sampling and Analysis
    2.6 Data Collection and Analysis
        2.6.1 Plant Height (cm) at Harvest
        2.6.2 Measurement
        2.6.3 Botanical Composition
        2.6.4 Green Fodder Yield
        2.6.5 Dry Matter Yield
        2.6.6 Crude Protein Yield
    2.7 Determination of Nutrient Composition
    2.8 Statistical Analysis
Chapter III RESULTS
    3.1 Different Cropping System on Resource Consumption
        3.1.1 PAR Interception
        3.1.2 LAI
        3.1.3 Soil Temperature
        3.1.4 Soil Moisture Content
    3.2 Yield Components
        3.2.1 Botanical Composition
        3.2.2 Plant Height
        3.2.3 Fresh Biomass Yield
        3.2.4 Dry Matter Yield
        3.2.5 Crude Protein Yield
        3.2.6 Land Equivalent Ratio (LER)
        3.2.7 Grain Yield
    3.3 Proximate and Mineral Composition
        3.3.1 Nutrient Composition of Fodder
        3.3.2 Fermentation Quality of Silages
        3.3.3 Forage and Silage Proximate and Mineral Composition
Chapter IV DISCUSSIONS
    4.1 Effect of Different Cropping System on Resource Consumption
    4.2 Agronomic Parameters
    4.3 Proximate and Nutrients Composition of Forage and Silages
Chapter V OVERALL CONCLUSIONS AND SUGGESTIONS
REFERENCES
APPENDICES
LIST OF ABBREVIATIONS
ACKNOWLEDGEMENTS
BIOGRAPHICAL SKETCH



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