硅基生物刺激剂、实际应用及其对土壤-植物系统的影响机理（64页）.pdf

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1、Si-based biostimulators,practical application and mechanisms of the influence on soil-plant systemMatichenkov Vladimir1*,Wei Xiao2,Liu Yu-qiao2,Zhang Peng-bo2,Gao Xia21 Institute Basic Biological Problems,Pushchino,142290,Russia2 Hunan Institute of Economic Georgaphy,Changsha,410004,ChinaSi-rich mat

2、erials in agricultureSi-rich soil amendmentsSi fertilizersSi-rich biostimulatorsRates:0.5-10 t/ha(or 30-625 kg/mu)Effect on soil propertiesRates:50-500 kg/ha(or 3-30 kg/mu)Effect on plant nutritionRates:0.5-50 kg/ha(or 0.03-3 kg/mu)Effect on plant biochemistryThe effect of Si on plant protection aga

3、inst biotic and abiotic stressesThe aim:How small or extremely small rates of soluble Si can make direct effect on the plants?Subjects:Transport;Synthesis activation;Stability of moleculesTransportNutrients and micronutrients;Pollutants;Organic matterCd dynamic in rice apoplastIntensification of Si

4、transport Pot test,Plant:barley(3 weeks on grey forest soil),Stress:0oC during 48 h,Foliar application monosilicic acid application 12 h before stress at 0,5 mg/pot,Total Si,monosilicic acid,polysilicic acid in apoplast and symplast.Intensification of Si transportCyclizationThe examples of reactions

5、 to occur on the Silicon matrix in organic synthesisReactions of hydration and de-hydrationThe examples of reactions to occur on the Silicon matrix in organic synthesisReaction of oxidation and red-oxidationThe examples of reactions to occur on the Silicon matrix in organic synthesisReaction of cond

6、ensationThe examples of reactions to occur on the Silicon matrix in organic synthesisThe scheme of universal additional mechanisms of plant protection with using soluble Si compoundsProtein synthesisRaw materialsProductsPlant cellCell wallMetabolism cyclesProteinsLightCell wallWater,nutrients,raw or