Department of Forest Products, Dr. Y.S. Parmar University of Horticulture and Forestry, Nauni, Solan-173 230, Himachal Pradesh
*Present Address: G.B. Pant University of Agriculture and Technology, Krishi Vigyan Kendra, Dhakrani, Uttarakhand.
Online published on 15 September, 2011.
The present investigations were carried out to standardize the agro-techniques of cultivation of wild marigold (Tagetes minuta) which is an important essential oil bearing plant at mid-hills of Himachal Pradesh. During the studies, four levels of Nitrogen (N) and Phosphorus (P) and their interaction effects along with two spacing were tried to maximise oil yield. All growth and yield parameters except oil content in leaves followed increasing trend with the higher application of nitrogen and phosphorus at wider spacing and responded significantly to all interaction effects. The results from regression analysis revealed that increase in oil yield per hectare with increase in the nutrients showed a non linear trend i.e. per unit increase in nutrients is enhancing the oil yield per hectare at reducing rate.
