India is an agricultural country. agriculture and its allied activities act as main source of livelihood for more than 80% population of rural india. so it is necessary to focus on effective and improved plant growth. nutrients are essential for plant growth and plant metabolism. it plays an important role in balanced crop nutrition. macronutrients can be listed as carbon (c), hydrogen (h), oxygen (o), nitrogen (n), phosphorus (p), potassium (k), calcium(ca), magnesium (mg),whereas sulphur (s), boron (b), copper (cu), iron (fe), manganese (mn), molybdenum (mo), zinc (zn), nickel (ni) and chloride (cl) are considered as micronutrients. the more attention is being paid in supplementing the macronutrients but very less attention is paid on micronutrient delivery to plants so this project aims to address this problem.the zinc micronutrient required for several biochemical processes in plant, such as cytochrome and nucleotide synthesis, auxin metabolism, chlorophyll production, enzyme activation, and membrane integrity is extracted from halimeda tuna, a green macroalga in nano-dimensions using ultrasound. the delivery of zinc micronutrient to plant growth can be achieved by encapsulating the extracted zinc nanoparticles with oleoresin (antibacterial and antifungal properties). these encapsulated particles will get coated on to maize seed. encapsulated zno will tend to minimize the air and water pollution of nutrients, and use of nutrient effectively will reduce the amount of nutrients required for plant growth. the germination of this maize seeds will improve the plant growth in comparison to bare germinated seeds. uv-visible spectrophotometer analysis for macroalga will give extraction efficiency and will also help to monitor the growth of zinc oxide (zno) nanoparticles in the solution. the soil taste for nutrient content before and after seed germination can be studied. visual observation will help to monitor the effect of different concentration of zno on plant growth.