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Keyword [Validity]
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1. The Validity In Contingent Valuation Of Forest Eco-Tourism Non-Use Values
2. Effect Of Using Iron In Calcareous Purple Soil And Molybdenum In Acid Purple Soil On Validity And Competitiveness Of Bradyrhi-zobium-peanut Studied By Gene Marker Technique
3. Study On The Effects Of Phosphorous Bacteria Fertilizer On Phosphorus Validity Of Calcareous Soil
4. Preliminary Study On Effect Of Several Opsonin To Activate Abio-phosphorus And Crop In Calcareous Soil
5. Relation Between The Soil Microbial Characteristic And Biological Availability Of Nitrogen For Tobacco, Nicotiana Tabacum L. K326
6. Study On Temporal And Spatial Variation Of Soil Moisture In Loess Area Of West Shanxi Province
7. Dynamic Characteristic Of Biological Validity Of Cd In Soil-Rice System
8. Study On The Titanium Distribution Characteristics In Chongqing Typical Soil Profiles And Titanium Biology Validity
9. Dissipation Of Chlorpyrifos And Bifenthr In Soil And Their Period Of Validity For Termite Control
10. Data Mining Of Populus Germplasm Resources
11. Effects Of Different Measures Of Controlling Water And Fertilizer Supply On Biological Validity And Movement Of Deep Soil Nitrate
12. Study On Validity Of Forest Resource Supervision In China
13. The Observation Of The Safety And Validity About Prenatal Breeders Which Vaccinated With REV Attenuated Vaccine
14. Preparation Of Pyroline Praeparatum And Establishment Of Its Quality Standard
15. Validity Of The Accumulated Phosphorus Of Soil In Protective Farmland
16. Effect Of Soil Texture And Phosphate Fertilizer Rate On Phosphorus Availability In Xinjiang Cotton Field
17. Taxonomic Review And Molecular Phylogenetic Analysis Of The Subfamily Acheilognathinae (Teleostei: Cypriniformes)
18. Therapeutic Effect Of Skullcap Injection On Swine Edema Disease
19. The Phylogenetic Relationships And Hybridization Introgression Of Chinese Bream Fishes In Cultrinae(Teleostei:Cypriniformes:Cyprinidae)
20. Tolerance And Validity Research About Tea Polyphenols On Laying Hens
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