G.Mathubala , Dr.T.Jayadoss
Plants are the precious gift given by nature to mankind. The commercial important of flowers has been realized throughout the world and today floriculture has developed into an intensive form of agriculture. Flowers and gardens have for long been important in India , for three main considerations namely aesthetic , Economic and Social. Zinnia has many types depending mainly on the shape and size of flower , plant height and cultivars in each type varying in flower colour. India is endowed with natural wealth of plant materials, which are of great horticultural and floricultural importantand significance. Maintaining adequate quantities of nutrients in soil or growing media is important .Nitrogen , Phosphorous and Potash are required in relatively large amount while most other nutrients are needed in only in small amounts.