Depth-Wise Distribution of Boron in Soil Under Groundnut-Cabbage Cropping Sequence Suthar Bhavin, Kumar Dileep*, Patel K.C., Shukla A.K.1, Behera Sanjib Kumar1, Shroff J.C.2, Patel R.A. Micronutrient Research Centre (ICAR), Anand Agricultural University, Anand, 388110, Gujarat, India 1Present address: ICAR-Indian Institute of Soil Science, Bhopal, 462038, Madhya Pradesh, India 2Present address: Department of Agronomy, BACA, Anand Agricultural University, Anand, 388110, Gujarat, India *Corresponding author (Email: dileepdixit.bhu@gmail.com)
Online Published on 02 August, 2024. Abstract The present study aimed to assess the depth-wise distribution of boron (B) fractions in soil under six years B application schedues in groundnut-cabbage cropping system, conducted during the year 2014-2015 to 2019-2020 at Anand Agricultural University, Anand, Gujarat, India. The surface as well as sub-surface soil samples (0-15, 15-30, 30-45, 45-60, 60-75 cm) were collected from each plot. The treatments involving combinations of three B application frequencies (application only in the first year, alternate year and every year) and four B application rate (0.5, 1.0, 1.5 and 2.0 kg B ha-1) with a total treatment combinations of 13 including one control. The B was applied to the soil as borax to groundnut crop only. The effects of B application schedules on B fractions, i.e., readily soluble B, specifically adsorbed B, oxide bound B, organically bound B and residual B were significant under different soil depths. The amount of B fractions was increased with the level of B application. The surface soil (0-15 cm) had the greatest B concentration across all fractions, and the amount of B applied. While the residual B fraction increased with soil depth, and the readily soluble B, particularly adsorbed B and oxide bound B fractions dropped. Top Keywords Boron fractions, Boron fertilization, Groundnut, Cabbage. Top |