The present investigation was under taken on garlic (Allium sativum L.) cv. Phule Nilima to study the effect of silicon at All India Coordinated Research Project on Vegetable Crops, Department of Horticulture, MPKV, Rahuri, Dist. Ahmednagar in rabi season of 2017-18, by using different sources and levels of silicon on chemical properties of soil and nutrient availability in the soil related to growth, yield and quality characters in garlic. Also to study the effect of sources and levels of silicon on total up take of NPK and Silicon. Fifteen treatment combinations formed by three sources of fertilizer silicon (viz., diatomaceous earth, calcium silicate and bagasse ash) with five levels of silicon (viz., 0,100,150, 200 and 250 kg ha-1) and one absolute control, were tried and each replicated three times. The basal dose of fertilizer 100 N, 50 P2O5 and 50 K2O kg ha-1was applied before planting. In case of effect of sources and levels of silicon on up take of NPK and silicon, the source A2 (CS) and level (B5) @ 250 kg ha-1 recorded significantly highest uptake. The interaction effect of sources and levels of silicon on uptake of nitrogen and potassium l at harvest was significant, however in phosphorus and silicon it was nonsignificant. The uptake of NPK and silicon was significantly increased with treated over control.
