Dr. K. C. PatelPATEL RAVI ASHOKKUMAR2017-06-052017-06-052011http://krishikosh.egranth.ac.in/handle/1/5810017928The survey work was carried out in paddy growing areas of Ahmedabad, Kheda, Anand, Vadodara, Panchamahals and Dahod districts of middle Gujarat region in the month of October-November 2009 to assess the available Si status in paddy soils and find out the relationship of silicon content with soil and plant properties.. Twenty representative surface soil and plant samples from each district were collected from different rice ecosystem of the region. Thus, a total of 120 surface soil and 120 plant samples were collected from different villages of six districts. Available silicon in soils determined by NaOAc buffer method and plant samples was analysed for Si, N, P, K, S, Na and micronutrients (Fe, Mn, Zn and Cu) contents. The coefficient of correlation (r) was worked out to know the relationship between available Si and soil properties and silicon content and uptake by paddy.enSoil SciencesurveyThesis