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1. Studied On K Utilization In Purple Soil-wheat System Under Long-term Application
2. Study On Fixed Ammonium In Soils And Effect Factors On It
3. The Study On Fixed Ammonium In Major Types Of Upland Soils And Paddy Soils In Hunan Province, China
4. Characteristics Of The Cool Of Soil Organtic Carbon And Soil Organtic Nitrogen On The Loess Plateau From Sortn To North
5. The Study On Architecture And Wind Break Efficiency Of Imitation Sand-Fixed Shrub
6. Fixed Ammonium And Its Availability In Paddy Soils Of Hunan Province
7. Studies On Fixed Ammonium Of Chief Upland Cultivated Soils In Hunan Province
8. Studies On Intensive Rearing Of Fries Of Large-mouth Catfish, Silurus Soldatovi Meridionalis (Chen) In Fixed Bed Biofilter Purgative Close Recirculation System
9. Effect Of Seedling Colony On Seedling Quality And Output From Different Density Sowing
10. Effects Of Long-term Fixed Experiment On The Chemical Characteristics Of Soil Zinc, Copper, Manganese, Iron In Dry Land
11. The Design And Performance Test Research On The Fixed-bed Stalk Gasification System
12. Effect Of Combined Application Of Organic And Inorganic Fertilizer On Soil Microbial Biomass Nitrogen And Nitrogen Cycle
13. Study On Physical And Chemical Properties Of Wetland Soil In Daling Village With Different Retirement Years
14. The Effect Of Organic Nutrition On Growth And Quality Of Flue-cured Tobacco Under Fixed C/N Ratio Treatments
15. Effect Of Long-Term Fixed Position Fertilization On Soil Nutrient And Biological Characters In Loess Soil
16. Study On Microorganism And Enzyme Activity Of Different Sandy In Erdos
17. Studies On The Photosynthetic Physiological Characteristics Of Four Colorful Ornamental Plants
18. Genetic Relationship Of A Set Of Chinese Cabbage Diversity Fixed Lines
19. Study On Distribution Of Fixed Ammonium And Its Influencing Factors In Paddy Soil Profile
20. Study On Soil Microbes And Soil Enzyme Activity Of Hedysarum Scoparium Fish. Et Mey.
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