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1. The Study On Nitrogen Supply Of Soil After Long-term Different Fertilizing Experiments
2. Study On The Law Of Soil And Water Losses And Control Measures In Red Soil Watershed
3. Study On The Relationship Between Soil Erosion Rate And Sediment Yield In Small Watershed By ～(137)Cs And ～(210)Pbex Tracing Method
4. Studies On Photosynthetic Characteristics And Physiological Indexes Of Photosynthesis For Super High Yield In Heavy Ear Hybrid Rice (Oryza Sativa L.)
5. Study On The Characters Of Erosion Intensity Evolvement In Yangou Watershed
6. Study On Velocity Measurement Of Steady Sheet Flow With The Electrolyte Pulse Method And Its Application
7. Physiological Mechanism Of The Unsynchronized Grain Filling Of Superior And Inferior Spikelets In Hybrid Rice
8. Insecticidal Activities Of Microcystin Against Helicoverpa Armigera (H(?)bner) And Pieris Rapae Linne And The Mechanisms
9. Study On Effects Of Fertigation And Distribution Patterns Of Carbon And Nitrogen Nutrition In Sweet Pepper (Capsicum Annul. L)
10. Study On Nitrogen Fate And Efficiency Of Organic Manure In Wheat-Maize Rotation In North China Plain
11. Characteristics Of Soil Nitrogen Supply And Its Effect On The Nitrogen Nutrition Of Flue-cured Tobacco
12. Modification Of The Methods In 15N Tracer And Their Use In Determination Of Rumen Microbial Protein Synthesis
13. Seed Coat Permeability And Location Of Semipermeable Layer In Seeds Of Several Grass Species
14. Multi Composite Radionuclide Tracer Quantitative Study On Erosion Process
15. Effects Of Nitrogen Fertilizer Management Model On Nitrogen Residue And Utilization In Greenhouse Vegetable Soil
16. Study On The Drought Resistance With Super-weak Bioluminescence Technique And The Isotope Tracer Technique
17. Using REE Tracers To Measure Sheet Erosion Changing To Rill Erosion On Loess Slope
18. Use Of ～7Be And ～(137)Cs Measurements To Study The Pattern Of Soil Erosion On Cultivated Slope Land
19. Studies On Transportation Of Nutrient In Growing Process Of Zizania Latifolia
20. The Research On The Rhythm Of Transportation And Distribution In The ～(14)C Assimilation Products Of Vitis Amurensis CV.ShuangYou
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