声明
摘要
Abstract
1 Introduction
1．1 Basis for research setting
1．2 Purpose and significance of research
1．3 Development of Deficit Irrigation in China to increase Agricultural WUE
1．3．1 Sustaining Yield of the Cereal Crops Using Deficit Irrigation Methods
1．3．2 Approaches of Deficit irrigation for improving the quality and WUE of fruit trees
1．3．3 The Approaches of Deficit irrigation on the Crops in Greenhouse，Improving the Crop Yield，its WUE and Quality
1．3．4 The Viable Approach for Security of Food in China via Agricultural Water Resources
1．4 Various National and International Studies Conducted for RDI in Soybean and other crops
1．4．1 How plant reacts physiologically to deficit irrigation
1．4．2 Regulated Deficit Irrigation(RDI)in Soybean
1．4．3 Regulated Deficit Irrigation(RDI)in Different Crops
1．5 Research Contents and Technology Route
1．5．1 Research Contents
1．5．2 Technical Route
2 Materials and Methods
2．1 Experimental Design
2．1．1 Experimental material
2．1．2 Design of experiment
2．2 Observation index and their determination method
2．2．1 Soil moisture contents
2．2．2 Field water capacity of soil
2．2．3 Plant height(cm)and leaf area(cm2)
2．2．4 Stem thickness(cm)
2．2．5 Numbers of branches
2．2．6 Water consumption(mL)
2．2．7 Water use efficiency(g／kg)
2．2．8 Numbers of seeds per plant
2．2．9 Number of seeds per pod
2．2．10 100 seed weight
2．2．11 Production(total yield)
2．2．12 Biological yield
2．2．13 Grain yield
2．3 Data analysis
3 Results and Analysis
3．1 Effect of regulated deficit irrigations on plant height at various stages of plant growth
3．2 Effect of regulated deficit irrigations on leaf area at various stages of plant growth
3．3 Effect of Regulated Deficit Irrigations on number of pods，total seed weight，100 seed weight(g)and grain yield(g／m2)
3．4 Effect of Regulated Deficit Irrigations on total water consumption and water use efficiency(WUE)
4 Discussion
5 Conclusion
Acknowledgment
Reference
Academic papers published during the time period of master’s degree
