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Fertilizer Rate and Plant Density Interaction Effects on Cotton Growth, Yield, Yield Components, Biomass and Nutrient Accumulation

Abstract第7-8页
1. Introduction第9-15页
    1.1 Cotton and N fertilizer第9-11页
    1.2 Cotton and plant density第11-14页
    1.3 Aims and significance第14-15页
2. Materials and methods第15-24页
    2.1 Experimental site第15页
    2.2 Experimental design第15-16页
    2.3 Data collection第16-21页
        2.3.1 Weather data第16页
        2.3.2 Soil sampling and soil available NPK content第16-18页
            2.3.2.1 Estimation of available N第17页
            2.3.2.2 Estimation of available P第17页
            2.3.2.3 Estimation of available K第17-18页
        2.3.3 Cotton growth第18页
        2.3.4 Cotton yield第18页
        2.3.5 Chlorophyll content第18-19页
        2.3.6 Biomass accumulation第19页
        2.3.7 Plant nutrient content第19-21页
            2.3.7.1 Digestion process第19页
            2.3.7.2 Total nitrogen content第19-20页
            2.3.7.3 Total phosphorus content第20页
            2.3.7.4 Total potassium content第20-21页
            2.3.7.5 Sugar content第21页
            2.3.7.6 Protein content第21页
    2.4 Data analysis第21-24页
        2.4.1 Biomass accumulation第21-22页
        2.4.2 Nitrogen,phosphorous,and potassium accumulation第22-23页
        2.4.3 Sugar content第23页
        2.4.4 Protein content第23-24页
3. Results第24-71页
    3.1 Cotton growth periods第24-25页
    3.2 Chlorophyll content第25-27页
    3.3 Cotton growth characteristics第27-30页
    3.4 Biomass accumulation第30-34页
        3.4.1 Cotton plant biomass(CPB)accumulation第31-32页
        3.4.2 Vegetative organs biomass(VOB)accumulation第32-33页
        3.4.3 Reproductive organs biomass(ROB)accumulation第33-34页
    3.5 Simulation of biomass accumulation第34-40页
        3.5.1 Simulation of cotton plant biomass(CPB)accumulation第34-36页
        3.5.2 Simulation of vegetative organs biomass(VOB)accumulation第36-38页
        3.5.3 Simulation of reproductive organs biomass accumulation第38-40页
    3.6 Cotton yield and its components第40-42页
        3.6.1 Seed cotton yield第40页
        3.6.2 Lint yield第40-41页
        3.6.3 Boll weight第41页
        3.6.4 Boll number第41页
        3.6.5 Lint percentage第41页
        3.6.6 Harvest index第41-42页
    3.7 Nutrient accumulation第42-50页
        3.7.1 Nitrogen accumulation第43-45页
            3.7.1.1 Cotton plant N accumulation第43-44页
            3.7.1.2 Vegetative organs N accumulation第44页
            3.7.1.3 Reproductive organs N accumulation第44-45页
        3.7.2 Phosphorous accumulation第45-47页
            3.7.2.1 Cotton plant P accumulation第45-46页
            3.7.2.2 Vegetative organs P accumulation第46-47页
            3.7.2.3 Reproductive organs P accumulation第47页
        3.7.3 Potassium accumulation第47-50页
            3.7.3.1 Cotton plant K accumulation第47-48页
            3.7.3.2 Vegetative organs K accumulation第48-49页
            3.7.3.3 Reproductive organs K accumulation第49-50页
    3.8 Simulation of nutrient accumulation第50-67页
        3.8.1 Simulation of nitrogen accumulation第50-56页
            3.8.1.1 Simulation of cotton plant nitrogen accumulation第50-52页
            3.8.1.2 Simulation of vegetative organs nitrogen accumulation第52-54页
            3.8.1.3 Simulation of reproductive organs nitrogen accumulation第54-56页
        3.8.2 Simulation of Phosphorous accumulation第56-62页
            3.8.2.1 Simulation of cotton plant P accumulation第56-58页
            3.8.2.2 Simulation of vegetative organs P accumulation第58-60页
            3.8.2.3 Simulation of reproductive organs P accumulation第60-62页
        3.8.3 Simulation of potassium accumulation第62-67页
            3.8.3.1 Simulation of cotton plant K accumulation第62-64页
            3.8.3.2 Simulation of vegetative organs K accumulation第64-66页
            3.8.3.3 Simulation of reproductive organs K accumulation第66-67页
    3.9 Sugar and protein content第67-71页
        3.9.1 Sugar content第67-69页
        3.9.2 Protein content第69-70页
        3.9.3 C/N ratio第70-71页
4. Discussion第71-78页
    4.1 Cotton growth periods第71-72页
    4.2 Chlorophyll content第72-73页
    4.3 Process of cotton growth第73-74页
    4.4 Biomass accumulation第74-75页
    4.5 Cotton yield and its components第75-76页
    4.6 Nutrient accumulation第76-77页
    4.7 Sugar and protein content第77-78页
5. Conclusion第78-79页
Acknowledgements第79页
Work dedications第79-80页
References第80-90页

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