A field experiment was conducted during Kharif season of 2016 on research plot of Udai Pratap (Autonomous) College, Varanasi (U.P.) to study the effect of foliar application of boron at different stages of crop growth on rice (Oryza sativa L.). The experimental soil was sandy loam having available nitrogen 144 kg ha -1 , available phosphorus 12.2 kg ha -1 , available potassium 165 kg ha -1 and available (hot water extractable) boron 0.17 ppm. The experiment was carried out in randomized block design (RBD) with six treatments and three replications. Treatments were T0= RDF, T1= RDF

A field experiment consisting of 6 treatment combinations of two levels of Ni (@ 1 and 2 kg ha -1 ) with two nitrogen sources and three replications was conducted under randomized block design at research plot of Udai Pratap (Autonomous) College, Varanasi (U.P.).The main objective of study was to find out the effect of Ni with different sources of nitrogen on growth and yield of rice (Oryza sativa L.).The experiment was laid out in a randomized block design (RBD) having 6 treatments and 3 replications. Treatments were T0= control, T1 = nitrogen through ammonium sulphate + Ni@ 1 kg ha -1 , T2 = nitrogen through ammonium sulphate + Ni @ 2 kg ha -1 , T3 = nitrogen through urea + Ni @ 1 kg ha -1 , T4 = nitrogen through urea + Ni @ 2 kg ha -1 and T5 = 50% nitrogen through Urea and 50% nitrogen through ammonium sulphate + Ni @ 2 kg ha -1 . The results revealed that the growth, yield, organic carbon and available N, P and K status of soil was significantly increased by application of Ni @ 1 and 2 kg ha -1 with different nitrogen sources (urea and ammonium sulphate) as compared to control. Similar results were also observed with nutrients (N, P and K) content and uptake by the rice.