Author(s):

RG Goswami, RK Bajpai, Alok Tiwari and V Bachkaiya

Abstract: A field experiment was conducted on a deep black clay loam (Vertisols) soil at research cum Instructional farm, Department of Soil Science and Agril. Chemistry, IGKV, Raipur (C.G) during kharif seasons, 2016 to study the Effect of nutrient management and rice establishment on Root CEC of rice under normal & delay planting condition during kharif. The experiment comprises various nutrient management as different source of N fertilizers and rice establishment method laid out in Strip plot design with four replications. The details of the treatments were; four level of nutrient management, seven level of rice establishment and two level of planting time. The result of the experiment revealed that, Root CEC at 30 DAT of T5N3-FRBT(M) + USG (46.25 meq 100-1g) which was statistically higher than all other interaction and T4N1-FRBT (S) + Control (15.75 meq 100-1g) had the minimum Root CEC at 0-20 and 20-40 cm depth respectively under kharif- NP and highest in T4N4-FRBT (S)+Neem cake coated urea (38.50 meq 100-1g) and lowest in T7N1- SRI+ Control (21.25 meq 100-1g) & T4N1- FRBT(S) + Control (15 meq 100-1g ) at 0-20 and 20-40 cm depth respectively under DP. Similarly the higher Root CEC was found in T4N4-FRBT (S)+Neem cake coated urea (47 meq 100-1g) and minimum under T4N1-FRBT (S) + Control (16.50 meq 100-1g) at 0-20 and 20-40 cm depth respectively under DP at stage of maximum flowering. It was also reported that Root CEC was positively significantly influence by the interaction of (establishment method x nutrient management) under 0-20 and 20-40 cm depth at 30 DAT and maximum flowering condition under both i.e. normal and delay planting condition.

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