Influence of phosphorus and lime on yield and physical parameters of Indian mustard (Brassica juncea L.) under wood apple (Aegle marmelos L.) based agri-horti system

An experiment was conducted at the Agricultural Research Farm of RGSC, Banaras Hindu University, Brakachha, Mirzapur during winter (rabi) season 2019. The experiment was laid out in a randomized block design with three replications and a set of 10 treatments on Indian Mustard involving with three levels each of phosphorus (30, 50, 70 kg P₂O₅ ha^-1) and lime (150, 300, 450 kg lime ha^-1) with one control (no P₂O₅ and no lime). Indian Mustard cv. “Giriraj’ was sown on 16^th November in 30 cm × 10 cm apart. Results stated that application of 70 kg P₂O₅ ha^-1 and 450 kg lime ha^-1 increased the seed yield up to 11.9% and 8.7% as compared to 30 kg P₂O₅ ha^-1 and 150 kg lime ha^-1 respectively. Similarly, 70 kg P₂O₅ and 450 kg lime ha^-1 showed increment in oil yield, biological yield, plant height, dry matter accumulation, and nutrient uptake percentage (NPK) over 30 kg P₂O₅ and 150 kg lime^-1. The results of yield and physical parameters obtained by the application of 70 kg P₂O₅ ha^-1 and 450 kg lime ha^-1 have shown significant increment as compared to 30 kg P₂O₅ and 150 kg lime^-1 respectively but was mostly at par when compared to 50 kg P₂O₅ ha^-1 and 300 kg lime ha^-1. It was also observed that the difference between 70 kg and 50 kg P₂O₅ for plant height and yield was found to be statistically at par and couldn’t meet the critical difference.