Effects of sources and levels of silicon on chemical properties and nutrients availability of soil at harvest of garlic

The field experiment entitled "Effect of sources and levels of silicon on Chemical Properties and Nutrient availability of Soil at Harvest of Garlic " was conducted during Rabi season. at All India Co-ordinated Research Project, Department of Horticulture, Mahatma Phule Krishi Vidyapeeth, Rahuri with a view to study the effect of sources and levels of silicon on Chemical Properties and Nutrient availability of Soil at Harvest of Garlic. The present investigation was carried out in Factorial Randomized Block Design (FRBD). Fifteen treatments comprised of five levels of silicon (0, 50, 100, 150 and 200 kg Si ha¹) through three sources of silicon viz. Diatomaceous earth, calcium silicate and bagasse ash. The chemical properties viz. pH, EC and OC showed significantly influenced due to application of different sources. In case of sources the source A (DE) recorded significantly superior pH and OC (8.40 and 0.58% respectively) and the EC showed significantly highest (0.49 dSm-¹). The available nutrient at harvest viz. N, K, Si, Mn, Zn and Cu was significantly influenced due to application of different sources. In case of sources As (BA) recorded significantly superior N and K, (164.09 and 223.32 kg ha¹ respectively) over all other sources and the available Mn was significantly superior Zn (0.65mg kg) over all the sources. In case of source A (DE) recorded significantly highest Si at harvest (73.62 kg ha¹) and the available Cu content recorded significantly highest (1.72 mg kg 1). From the above result it can be concluded that the application of silicon @ 200 kg ha¹ through bagasse ash proved as good source of silicon for highest Electrical conductivity, Nitrogen and Potassium availability of soil at harvest of Garlic.