However, there is a lack of information about soils type and Si concentrations in soils with positive responses to Si fertilization.MethodsĪdvances in methods of analysis of Si in soil and plants and their implementation in future studies can improve our understanding of the dynamics of Si in soil-sugarcane systems. The multiple harvest of sugarcane crops in such soils may lead to Si depletion over time if Si supplementation is not practiced. Although Si is not a nutrient, Si fertilization may be necessary in weathered soils where Si is depleted to obtain increased yield, especially for Si-accumulating plants such as sugarcane. PurposeSilicon (Si) is the predominant element in soils, but is usually sparingly soluble and limited in its availability for plant uptake. Key words: Fly ash, Plant available silicon, Silicate solubilizing bacteria, Farm yard In more release at 15,30,45,60 and 75 days after incubation which was on par withĪddition of fly ash at 25 g kg-1 of soil at 90 days after incubation. Imposition of fly ash at 50 g kg-1 of soil with SSB + FYM resulted Significant variations in the N NaOAc (pH 4.0) extractable Si throughout the Interaction with various sources viz., SSB, FYM and SSB+FYM have shown Imposition of graded levels of fly ash and their The control recorded the least N NaOAc extractable Si Among theĭifferent treatments the application of SSB +FYM recorded the highest N NaOAc (pHĤ.0) extractable Si of 272.2 mg per kg at 60th day followed by FYM (258.0 mg per kg) Kg to 272.2 mg per kg during 15th to 60th days after incubation, thereafter a slightĭecline in N NaOAc (pH 4.0) extractable Si was observed up to 90 days. Resulted a consistent increase of N NaOAc (pH 4.0) extractable Si from 144.7 mg per The results revealed that among different treatments, addition of SSB + FYM Extracted plant available Si by using 1N NaOAc (pHĤ.0) and estimated calorimetrically at 15 days interval i.e 15, 30, 45, 60 75 and 90 TheĬalculated quantity of FA, SSB and FYM was applied to each container containing 10 Randomized Design for 15, 30, 45, 60 75 and 90 days duration of incubation. Six sets of plastic containers consist of 40 numbers in each set toĪccommodate 20 treatments with 2 replications under Factorial Completely Graded levels of FA viz., 0, 12.5, 25, 37.5 and 50 g/kg of soil with and without SSBĪnd FYM. Institute which is low status of plant available silicon. The soil for incubation studyĬollected from Eastern block of Agricultural Engineering College and Research

Silicon from native soil and applied sources viz, Fly Ash (FA), Silicate Solubilizingīacteria (SSB) and Farm Yard Manure (FYM). *Email: incubation experiment was conducted to study the release characteristics of Tiruchirappalli, Tamil Nadu, India.ĢAgricultural College and Research Institute, Madurai, Tamil Nadu, India. Solubilizing Bacteria and Farm Yard Manureīalasubramaniam P1*., Pedda Ghouse Peera S.K1., Mahendran P.P2., Tajuddin A1.ġAgricultural Engineering College and Research Institute, Tamil Nadu Agricultural Release of Silicon from Soil Applied with Graded Levels of Fly Ash with Silicate

Silicio organico dosagem