Background: Cluster bean [Cyamopsis tetragonoloba (L.) Taub.], with vernacular name of Guar, is annual, economically important and drought-hardy legume (Mondal and Gera, 2020) salinity tolerant grown under semiarid and subtropical regions. It is cultivated under both irrigated and rainfed condition in India (Rathod et al. 2020). India is its major producer, accounting for 80% of world’s total production (Meena et al., 2018). Cluster bean is grown in India on 5.60 Mha and produces of 2.82 million tonnes with a low national average yield of merely 504 kg/ha (Anonymous, 2019).
Methods: The experiments were conducted at the Agronomy Farm, College of Agriculture, SK Rajasthan Agricultural University (SKRAU), Bikaner during kharif seasons of 2018 and 2019. The Farm is situated on Bikaner - Sriganganagar road situated at 28°4’21" NL latitude and 73°20’17" EL longitude with an altitude of 234.7 meters above the mean sea level. The experiment was laid out in strip plot design in three factors with 32 treatments comprising four tillage, two herbicide and four planting delay treatments. Statistical analysis by using STAR (R-Packages 1.5 STAR 2.0.) (Statistical Tool for Agricultural Research), software developed by Department of Plant Breeding Genetics and Biotechnology, IRRI (International Rice Research Institute), Manila, Phillipines.
Result: The disc plough (T2), control (H0) and early planting P1 (July 10) significantly increased N, P, K, total nutrient uptake and partial nutrient balance (PBN) than other treatments. All the interactions were found significant in nutrient of cluster bean. The seed and straw yield of cluster bean was found significantly higher in disc plough (T2), control (H0) and early planting P1 (July 10) compared to other treatments of pooled basis. The interactions were found significant between tillage × herbicide × planting delay in yield of cluster bean.