Vol. 7, Special Issue 3 (2018)
Micronutrient status of soils in different medicinal and aromatic land use systems of Karnataka
Author(s): Ramamurthy V, Ramesh Babu, Shilpasri D Mamatha, KS Anil Kumar, Munnu Singh, EVS Prakasa Rao and SK Singh
Abstract: Medicinal and aromatic plants, though minor crops but contribute significantly to rural economy and health security of the country. Micronutrients are essential for enzymes involved in many biosynthetic steps of secondary compounds of medicinal and aromatic plants. Recent studies indicated that imbalanced fertilizer application and deficiency of micronutrients in the soils is one of the major factors responsible for stagnation or decline in crop productivity of the land use systems. The deficiencies of micronutrients became a serious limitation in achieving optimum yield and quality of produce. Every micronutrient has certain specific role to play and their presence in optimum concentration is a must for the plant to complete its life cycle. However, excess concentrations of these nutrients can have multiple adverse effects on plant secondary metabolism. Productivity of these soils can be enhanced through balanced nutrient management by knowing the status of micronutrients of soils. Hence, present study was initiated to know the micronutrient status of soils which are used for growing extensively for aromatic and medicinal crops in Karnataka. Surface soil samples (0-15 cm) were collected from different Agro-ecological Zones of Karnataka covering land use systems like Eucalyptus citriodora, Davana, Palmrosa, scented geranium, Tulsi, Bajje (Acorus calamus), Amla, Vetiver and rosemary. The preliminary studies indicated that boron and zinc are extensively deficit in all the land use systems studied. In E. citriodora, davana and Vetiver land use, maximum number of samples showed deficiency of zinc and boron. Whereas, zinc, iron and boron deficiency was prominent in tulasi and amla land use system, deficiency of iron and boron in scented geranium, Zn in rosemary and Zn, Mn, Fe, B in palmarosa land use system was observed.
How to cite this article:
Ramamurthy V, Ramesh Babu, Shilpasri D Mamatha, KS Anil Kumar, Munnu Singh, EVS Prakasa Rao and SK Singh. Micronutrient status of soils in different medicinal and aromatic land use systems of Karnataka. 2018; 7(3S): 22-25.