Vol. 11, Special Issue 11 (2022)

Author(s):
Pallabi Kalita, Satendra Kumar, BP Dhyani, UP Shahi, RK Naresh and B Singh

Abstract:
The goal of the current study was to evaluate the soil fertility of soils in rice-wheat cropping system. In order to analyse different soil parameters, soil samples were taken from farmer's fields at three depths: 0-15 cm, 15-30 cm, and 30-45 cm. Results showed that the soils were neutral to slightly alkaline in soil reaction, non-saline in salt content, and sandy clay loam to clay loam in texture. Mean values of CEC 15.63, 12.33 and 10.49 C mol (p⁺) kg^-1, Soil organic carbon 4.49, 3.88 and 2.80 g kg^-1, available nitrogen 261.42, 208.57 and 174.23 kg ha^-1, available phosphorus 14.04, 12.24 and 9.16 kg ha^-1, available potassium 155.78, 118.36 and 101.56 kg ha^-1, DTPA Zn 0.20, 0.34 and 0.47 mg kg^-1, DTPA Fe 5.60, 7.19 and 9.53 mg kg^-1, DTPA Mn 5.00, 6.88 and 8.14 mg kg^-1 and DTPA Cu 0.55, 0.72 and 0.96 mg kg^-1 were recorded at 0-15cm, 15-30 cm and 30-45cm, respectively. Soils in this cropping system had a low available nitrogen content and a medium available phosphorus and potassium content. Among the DTPA extractable micronutrients, soils were deficient in available zinc while sufficient in available iron, manganese, and copper content.