Vol. 12, Issue 12 (2023)

Author(s):
PK Patel, NJ Jadav and SN Makwana

Abstract:
A field experiment was directed at Regional Research Station, Anand Agricultural University, Anand during two consecutive kharif and rabi seasons of the year 2020-21 and 2022-23 to assess the direct and residual effects of different rates of applied potassium, sulphur and KSB on growth, yield and quality of direct seeded rice-chickpea cropping system. The experimental soil was loamy sand in texture having pH of 8.15. The experiment was set up as a randomized block design with a factorial approach, with three replications and eighteen treatment combinations, including two levels of KSB (0 and 1 L ha^-1), three levels each of potassium (0, 30 and 60 kg K ha^-1), and sulphur (0, 20 and 40 kg S ha^-1). The kharif rice was fertilized as per different treatment combinations and its residual effect was studied on rabi chickpea. The results revealed that seed and haulm yield of succeeding chickpea increased significantly by 5.0, 6.3, 5.7 percent and 5.4, 5.8, 5.6 percent with KSB 1 L ha^-1, 11.6, 11.8, 11.7 percent and 7.7, 9.3, 8.5 percent with 60 kg K ha^-1 as well as 15.2, 13.4, 14.3 percent and 9.5, 10.9, 10.2 percent with 40 kg S ha^-1 applied to preceding rice crop over control. Application of potassium, sulphur and KSB had significant residual effect on plant height, No. of pods plant^-1 and crude protein content of chickpea. Interaction of potassium and sulphur having K₆₀S₄₀ treatment combination found their significant effects on seed yield and haulm yield.