Characterization of Crc Soil at Svpuat Meerut

Abstract

A study entitled "Characterization of CRC soil at SVPUAT, Meerut" was carried out during 2013- 14. Soil Samples collected from different depths viz 0-15, 15-30 em were processed and analyzed for various physical and chemical properties. The overall quality of CRC soil appears to be poor to medium except for certain parameters. Majority of soil samples showed moderately slow to moderate in hydraulic conductivity (0.48- 1.8 and 1.8-6.24 cmlhr) and infiltration rate(0.5-2.0 and 2.0-6.5 cmlhr) which may be attributed due to poor OC , low porosity and high BD . A positive and strongly significant relation was observed between HC , IR with OC and Porosity while negative correlation was found between HC, IR and Bulk density. Soil pH range between 6.7 to 8.6 at su~ace and all the samplers belongs to neutral to alkaline ran~. The electrical conductivity of the surface soil ranged from 0.12 to 0.26 dsm·1 .The percent organic carbon content of surface soil samples was in the range of 0.28-0.98 %. Soils of CRC classified based on pH, EC ( 1 :2 soil: water ratio), OC , HC , IR ,BD were neutral to strongly alkaline , majority of soils falls under very low EC (0-0.15 dSm"1 ) and low organic carbon ( <0.5%), the available nitrogen of samples was in the range of 153.03 to 386.4 kg/ha and were in low nutrient index range ( 1.21 Nl) ,the available phosphorus of samples range between 17.92 to 26.88 kg ha"1 for and falls in medium nutrient index range( 2.21 NI) while the available potassium of samples range between 114.24 to 455.8 kg/ha and falls in high nutrient index range( 2.63 Nl). As per the nutrient status of the study area and each nutrient index level (i.e., low, medium and high) , the soils of CRC were categorized into low-medium-high( L M H) category based on available N, P and K concentrations. Ca/Mg ratio of the study area varied from 1.6-3.06 while Mg/K ratio varied from 2.88 to 16.42 . Soils of study area was found in sufficient range for available Cu, Zn, Fe, and Mn