| 摘要 | 第6-7页 |
| Abstract | 第7-8页 |
| List of abbreviations | 第18-19页 |
| CHAPTER-Ⅰ Background | 第19-24页 |
| 1.1 Over Use of Fertilizers for Food Security | 第19页 |
| 1.2 Nitrogen and Phosphorus Global Losses from Agric-Land | 第19页 |
| 1.3 Nitrogen and Phosphorus Losses from Chinese Agricultural Lands | 第19-20页 |
| 1.4 Research Progress to Control Non-Point Source of Pollution at National and World Levels | 第20页 |
| 1.5 Vision,Objective and Significance of the Current Study | 第20-22页 |
| 1.6 Technical Roadmap for the Research Project | 第22-24页 |
| Chapter-Ⅱ Materials and Methods | 第24-34页 |
| 2.1 Site Descriptions | 第24-25页 |
| 2.2 Rice-Broad Bean Typical Crop Rotation System Season 2017-18 | 第25-33页 |
| 2.2.1 Experimental Design for Paddy rice Season-2017 | 第25-27页 |
| 2.2.2 Agronomic practices | 第27-28页 |
| 2.2.3 Description of fertilizers used in the research project season-2017 | 第28页 |
| 2.2.4 Leached water measurements | 第28-29页 |
| 2.2.5 Surface runoff water harvest and measurement | 第29页 |
| 2.2.6 Chemical Analysis | 第29-31页 |
| 2.2.7 Crop harvest and yield attributes | 第31页 |
| 2.2.8 Soil Sampling | 第31页 |
| 2.2.9 N- Balances | 第31页 |
| 2.2.10 Statistical analysis | 第31-32页 |
| 2.2.11 Experimental Design for Broad bean Crop Season 2017-18 | 第32-33页 |
| 2.3 Experimental Design for Paddy Rice Crop Season-2018 | 第33-34页 |
| Chapter-Ⅲ Nitrogen and Phosphorus Surface Runoff Losses | 第34-51页 |
| 3.1 Nitrogen and Phosphorus Losses to the Surface Runoff Water During the Rice Crop Season-2017 and 2018 | 第34-50页 |
| 3.1.1 Total Nitrogen(TN),Ammonium-N and NO_3~--N losses to the surface runoff water under Rice Crop-2017 | 第34-36页 |
| 3.1.2 Comparative analysis of Total nitrogen(TN),Ammonium-N(NH_4~+-N)and Nitrate-N(NO_3~--N) losses to the surface runoff water during paddy rice crop season-2017 | 第36-37页 |
| 3.1.3 Total Nitrogen(TN),Ammonium-N and NO_3~--N losses to the surface runoff water under Rice Crop-2018 | 第37-40页 |
| 3.1.4 Comparative analysis of Total nitrogen(TN),Ammonium-N(NH_4~+-N) and Nitrate-N(NO_3~--N) losses to the surface runoff water during paddy rice crop season-2018 | 第40-42页 |
| 3.1.5 Total Nitrogen(TN)% Losses to the surface runoff water out of N-fertilizer applied quantity todifferent treatments during rice crop season 2017 and 2018 | 第42页 |
| 3.1.6 Ammonium Nitrogen (NH_4~+-N)% Losses to the surface runoff water out of quantity of N-fertilizerapplied to different treatments during rice crop season 2017 and 2018 | 第42-43页 |
| 3.1.7 Nitrate Nitrogen(NO_3~--N)% Losses to the surface runoff water out of quantity of N-fertilizer applied to different treatments during rice crop season 2017 and 2018 | 第43-44页 |
| 3.1.8 Total and Soluble Active Phosphorus losses to the surface runoff water under Rice-Broad bean croprotation system 2017-18 | 第44-45页 |
| 3.1.9 Comparative analysis of Total Phosphorus {P_2O_5(TP)} and Soluble Active Phosphorus {P_2O_5(SAP)}% Losses in the surface runoff water during rice-broad bean crop season2017-18 | 第45-46页 |
| 3.1.10 Total and Soluble Active Phosphorus losses to the surface runoff water under Rice crop season-2018 | 第46-47页 |
| 3.1.11 Comparative analysis of Total Phosphorus {P_2O_5(TP)} and Soluble Active Phosphorus {P_2O_5(SAP)}% Losses in the surface runoff water during rice crop season-2018 | 第47-49页 |
| 3.1.12 Total P_2O_5% losses to the surface runoff water out of P_2O_5 dose from different types of fertilizersapplied in the respective treatment during the rice crop season 2017 and 2018 | 第49页 |
| 3.1.13 Soluble Active Phosphorus-P_2O_5% losses to the surface runoff water out of P_2O_5 dose from differenttypes of fertilizers applied in the respective treatment during the rice crop season 2017 and 2018 | 第49-50页 |
| SUMMARY | 第50-51页 |
| Chapter-Ⅳ Nitrogen and Phosphorus Leaching Losses(30Cm) | 第51-68页 |
| 4.1 Nitrogen and Phosphorus Leaching Water Losses(30cm Soil Profile Layer)During the Rice Crop Season-2017 and 2018 | 第51-67页 |
| 4.1.1 Ammonium-N,NO_3~--N and total nitrogen losses to the Leached water percolating through 30cm soil profile depth during rice crop season-2017 | 第51-53页 |
| 4.1.2 Comparative analysis of total,net and % losses of NH_4~+-N,NO_3~--N and total nitrogen in the leached water percolating through 30cm soil profile depth during the rice crop season 2017 | 第53-54页 |
| 4.1.3 Total Nitrogen(TN),Ammonium-N and NO_3~--N losses to the Leached water percolating through 30 cm soil profile depth during rice crop season-2018 | 第54-56页 |
| 4.1.4 Comparative analysis of total,net and % losses of NH_4~+-N,NO_3~--N and total nitrogen in the leached water percolating through 30 cm soil profile depth during the rice crop season 2018 | 第56-58页 |
| 4.1.5 Total Nitrogen(TN) Net Loss and % Loss out of Nitrogen quantity applied to the respective treatment in the Leached water at 30 cm soil profile depth during the rice crop season 2017 and 2018 | 第58页 |
| 4.1.6 Ammonium Nitrogen(NH_4~+-N)% Losses to the Leached water(30 cm soil profile depth)out of Nitrogen quantity applied to different treatments from different fertilizers during rice crop season 2017 and 2018 | 第58-59页 |
| 4.1.7 Nitrate Nitrogen(NO_3~--N)% Losses out of the N-input quantity into Leached water at 30 cm soilprofile depth during the rice crop season 2017 and 2018 | 第59-60页 |
| 4.1.8 Total and Soluble Active Phosphorus losses to the Leached water Percolating through 30 cm soil profile under Rice-Broad bean crop rotation system 2017-18 | 第60-62页 |
| 4.1.9 Comparative analysis of Total Phosphorus {P_2O_5(TP)} and Soluble Active Phosphorus {P_2O_5(SAP)}% Losses in the Leached water Percolating through 30 cm soil profile Layer during rice-broad bean crop season-2017-18 | 第62页 |
| 4.1.10 Total and Soluble Active Phosphorus losses to the Leached water Percolating through 30 cm soil profile under Rice crop season-2018 | 第62-64页 |
| 4.1.11 Comparative analysis of Total Phosphorus {P_2O_5(TP)} and Soluble Active Phosphorus {P_2O_5(SAP)}% Losses in the Leached water Percolating through 30 cm soil profile Layer during rice crop season-2018 | 第64-65页 |
| 4.1.12 Total P_2O_5 % losses to the leached water at 30 cm soil profile depth out of P_2O_5 quantity applied from different types of fertilizers in the respective treatment during the rice crop season 2017 and 2018 | 第65-66页 |
| 4.1.13 | 第66-67页 |
| SUMMARY | 第67-68页 |
| Chapter-Ⅴ Nitrogen and Phosphorus Leaching Losses(60 cm) | 第68-80页 |
| 5.1 Nitrogen and Phosphorus Leaching Water Losses(60 cm soil profile layer)During the Rice Crop Season-2017 and 2018 | 第68-79页 |
| 5.1.1 Ammonium-N,NO_3~- -N,and total nitrogen losses to the Leached water percolating through 60 cm soil profile depth during rice-broad bean crop season-2017-18 | 第68-70页 |
| 5.1.2 Comparative analysis of total, net and % losses of NH_4+-N,NO_3--N and total nitrogen in the leached | 第70页 |
| 5.1.3 Ammonium-N,NO_3~- -N, and total nitrogen losses to the Leached water percolating through 60 cm soil profile depth during rice crop season-2018 | 第70-72页 |
| 5.1.4 Comparative analysis of total,net and % losses of NH_4~+-N,NO_3~--N and total nitrogen in the leached water percolating through 60 cm soil profile depth during the rice crop season-2018 | 第72-74页 |
| 5.1.5 Total nitrogen(TN)% losses in the Leached water(60 cm soil profile depth)out of the Nitrogen quantity applied in the respective treatment from different fertilizers during the rice crop season 2017 and 2018 | 第74页 |
| 5.1.6 Ammonium Nitrogen(NH_4~+-N)% Losses to the Leached water(60 cm soil profile depth)out of Nitrogen quantity applied to different treatments from different fertilizers during rice crop season 2017 and 2018 | 第74-75页 |
| 5.1.7 Nitrate Nitrogen(NO_3~--N)% Loss in the Leached water(60 cm soil profile depth)out of Nitrogen quantity added in the different treatments from different fertilizers during the rice crop season 2017 and 2018 | 第75-76页 |
| 5.1.8 Total Phosphorus(TP) and Soluble Active Phosphorus(SAP) losses to the Leached water percolating through 60 cm soil profile depth during rice-broad bean crop season 2017-18 | 第76-77页 |
| 5.1.9 Total Phosphorus(TP) and Soluble Active Phosphorus(SAP) losses to the Leached water percolating through 60 cm soil profile depth during rice crop season-2018 | 第77-78页 |
| 5.1.10 Comparative analysis of Total P_2O_5 % losses to the Leached water at 60 cm soil profile depth from different types of fertilizers in the respective treatment during the rice crop season 2017 and 2018 | 第78-79页 |
| 5.1.11 Total P_2O_5% losses to the leached water at 60 cm soil profile depth out of P_2O_5 quantity from different types of fertilizers applied in the respective treatment during the rice crop season 2017 and 2018 | 第79页 |
| Summary | 第79-80页 |
| Chapter-Ⅵ Crop Production and Yield Attributes | 第80-95页 |
| 6.1 Crop Production | 第80-81页 |
| 6.2 Plant Nitrogen Uptake and Nitrogen Use Efficiency | 第81-84页 |
| 6.3 Rice grain yield(kgha~(-1)) under amendment of different rates and types offertilizers during the rice crop season 2017 and 2018 | 第84-86页 |
| 6.4 Comparative analysis of Plant Nitrogen Uptake(PNU) by Rice crop plant under amendment of different rates and types of fertilizers during the rice crop season 2017 and 2018 | 第86-87页 |
| 6.5 Comparative analysis of Nitrogen Use Efficiency(NUE) of Rice crop under amendment of different rates and types of fertilizers during the rice crop season 2017 and 2018 | 第87-88页 |
| 6.6 Agronomic efficiency of the applied nitrogen(AEN) for the rice crop season-2017 and 2018 under different treatments amended by different types of fertilizers and management strategies | 第88-89页 |
| 6.7 Recovery efficiency of the applied nitrogen(REN) for the rice crop season-2017 and 2018 under different treatments amended by different types of fertilizers and management strategies | 第89-90页 |
| 6.8 Comparative analysis of Plant Phosphorus(P_2O_5) Uptake(PPU) by Rice crop plant under amendment of different rate and types of fertilizers during the rice crop season 2017 and 2018 | 第90-91页 |
| 6.9 Comparative analysis of Phosphorus(P_2O_5) Use Efficiency {PUE(%)} of Rice crop under amendment of different rates and types of fertilizers during the rice crop season 2017 and 2018 | 第91-94页 |
| Summary | 第94-95页 |
| Conclusions | 第95-97页 |
| References | 第97-107页 |
| Acknowledgement | 第107-108页 |
| Curriculum Vitae | 第108-111页 |
