Transition metal [M = VO (IV) and/or Cu (II)] complexes with Schiff base ligand, (Z)-2-((2-hydroxybenzylideneamino)phenol (H 2 L) have been entrapped in the super cages of zeolite-Y by Flexible Ligand Method. Synthesized materials have been characterized by preferential physico-chemical techniques such as inductively coupled plasma optical emission spectroscopy (ICP-OES), elemental analyses (CHN), fourier transmission infrared spectroscopy (FTIR), electronic and UVreflectance spectra, Brunauer-Emmett-Teller (BET) surface area measurements, scanning electron micrographs (SEMs), X-ray diffraction patterns (XRD) and thermogravimetric analysis (TGA). The catalytic competence of zeolite-Y entrapped transition metal complexes was examined in Baeyer-Villiger (BV) oxidation of cyclopentanone using 30% H 2 O 2 as an oxidant beside neat complexes to check the aptitude of heterogeneous catalysis over the homogeneous system. The effect of experimental variables such as mole ratio of substrate to an oxidant, amount of catalyst, reaction time, varying oxidants and solvents on the conversion of cyclopentanone was also tested. Under the optimized reaction conditions, one of the zeolite-Y entrapped transition metal complex viz. [VO(L)H 2 O]-Y [where L = (Z)-2-((2-hydroxybenzylideneamino)phenol] was found to be a potential contender by providing 80.22% conversion of cyclopentanone (TON: 10479.42), and the selectivity towards δ-valerolactone was 83.56%. KEYWORDS Baeyer-Villiger oxidation of cyclopentanone, flexible ligand method, heterogeneous catalysts, zeolite-Y entrapped transition metal complexes

A field experiment was conducted during rabi season of 2019-20 at College Farm, S. D. Agricultural University, Jagudan. The treatments included of best combinations consisting of physical and chemical methods as well as alone. The studies signified the importance of hand weeding at 25 and 40 DAS or application of post emergence herbicides which could benefit the crops in reducing the different weed density and ultimately reduced the weed dry matter which resulted in increase in the crop yield. Keeping the crop weed free up tharvest recorded higher weed control efficiency (100%) and lower weed index (0%). Higher growth and yield attributes under physical method alone and their integration with herbicide treatments might be due to effective control of weeds, significantly reduced crop-weed competition resulting in better congenial condition for growth and development of the crop. The maximum seed yield was recorded with weed free up to harvest and was at par with the treatments in which adoption of physical and chemical methods alone and their combinations. The maximum net realization and benefit cost ratio (BCR) were recorded with treatment T2 i.e. Two interculture followed by hand weed at 25 and 40 DAS.