PQ硅酸钾农业的应用-技术资料.ppt
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1、Potassium SilicateDual Action Biopesticide1Technical Training Workshop with Certis USATuesday,July 28,2009,Oxnard,CAAGENDAPQ Corporation ProfileSil-MATRIXProduct CharacteristicsMode of ActionRate RangeTarget Pests&CropsResults2Dual Action BiopesticideFor control of Powdery Mildew and other fungal di
2、seasesFor suppression of mites,whiteflies and other insectsSoft Biopesticide because it works with the plants natural defense systems3Product FeaturesSoft,dual activity pesticidePreventative fungicideContact&ISR miticide/insecticideMost effective in IPM SystemEPA-registered pesticideOrganic registra
3、tion pending for Plant Disease ControlInsecticide4Potassium Silicate Manufacture Quartz sand-SiO2Potassium carbonate K2CO3 Melt at 1200CResulting glass can be dissolved in water to make the liquid productsLiquids can be spray-dried to form hydrous powders56PQ Silicate Furnace:High quality sand ismel
4、ted with potassiumcarbonate to producepotassium silicateglass.Glass ManufactureSil-MATRIX What is it?Potassium Silicate Solution8%K2O,21%SiO2,balance waterai potassium silicate,29%in waterDensity 10.5#/gal;1.26 g/mL40 cp viscositypH 11.3Completely solubleUsed at 0.5-1.0%dilution1,000-2,100 ppm SiO27
5、89Mode of ActionPlants take up Si(OH)4Amorphous silica deposits in the leaf apoplastPrevents penetration of fungiBecomes less palatable to insectsTriggers faster,more extensive deployment of plant natural defenses10L.E.Datnoff et al,Silicon and Plant Disease,pp 233-246,in Mineral Nutrition and Plant
6、Disease,L.E.Datnoff,et al.,Eds,Am.Phytopath.Soc.,St.Paul,MN,2007.11Datnoff,2007Si as a Plant NutrientSi as a Plant NutrientResists biotic stresses(bacterial,fungal disease,insect attack)Resists abiotic stresses(drought,temp,salt,metal(Mn,Fe,Al)toxicity May improve N,P uptake,balance K,Mg uptake May
7、increase soil cation exchange capacity Improves overall vigor12L.E.Datnoff,et al,Silicon in Agriculture,Studies in Plant Science,8,Elsevier,Amsterdam,2001.131416Datnoff,2007Mode of ActionSi amplifies pathogenisis-induced host defense responsesAnti-fungal compounds form,e.g.phenolics,flavonoids,phyto
8、alexinsPlant defense chemicals affect preference for oviposition,expand developmental period,increase nymphal mortalityAlso desiccating effect on mites and soft-bodied insects17L.E.Datnoff,et al,Silicon in Agriculture,Studies in Plant Science,8,Elsevier,Amsterdam,2001.Silicon:Agricultural BenefitsRe
9、duces mineral stress:Resists toxicity to Mn,Fe,P,AlIncreases tolerance to saltIncreases availability of ZnReduces disease pressure,stimulates plants defense reactionsCan reduce pesticide&fungicide useLeads to stimulation of growth&yield18Long English cucumber-PythiumControlSi+ControlSi+Wheat-Powdery
10、 mildewControlSi+RiceBlast(Magnaporthe grisea)Sil-MATRIX rates0.5-1.0%spray(2-4qts per 100 gallons)No sooner than every 7 daysUse non-ionic surfactant20-250 gallons per acreFor fruit,nut,vineMax 10qts/acre(7.5#ai/a)per applnMax 20 gal/acre(60#ai/a)per season0 PHI,no post-harvest application22Product
11、 FeaturesEPA Tolerance ExemptionCAUTION labelREI is 4 hoursPHI is 0 daysPPE:Long-sleeve shirtLong pantsShoes and Socks23Compatibility TestsGood compatibility with many standard fungicidesCan ppt with soluble metals,can use chelated metalsSequestered Silica can prevent metal cation reactionSequestere
12、d Silica can improve solubility at low pHOrder of addition of ingredients is important24Crops&Pests Established Crops&Pests Established UsesUsesGrape:Grape:PM&Mite(TSSM,ERM)Strawberry:Strawberry:Mite(TSSM)PM,botrytisApple:Apple:Mite(ERM,Rust)Almond:Almond:Mite(TSSM)Lettuce:Lettuce:AphidBlueberry:Blu
13、eberry:BotrytisCherry:Cherry:PMCucurbits:Cucurbits:PMOrnamentals:Ornamentals:whiteflyleafminer25Trial Results Grape Powdery Mildew 2004Trial Results Grape Powdery Mildew 2004UTCSil-MATRIX+2.Sil-MATRIX+alt w/Abound/Rally 3.Sil-MATRIX alt w/Abound/Rally 4.Sil-MATRIX+(3 qt)alt w/Abound/Rally5.Sil-MATRI
14、X+pre-bloom only,Abound/Rally 6.Sulfur pre-bloom only,Abound/Rally“+”w/No Foam AApplied at 2 qt/100 gal(1300ppm SiO2)per acre unless otherwise noted.26Trial Results Grape Powdery Mildew 2004Trial Results Grape Powdery Mildew 2004TreatmentUkiah,CADinuba,CAWalnut Grove,CA%Inc.%Sev.%Inc.%Sev.%Inc.%Sev.
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