Influence of Distillery Spentwash Irrigation on Nutrients of Ginger (Zingiber officinale) and Turmeric (Curcuma longa) Medicinal Plants in Normal and Spentwash Treated Soil

Cultivation of some medicinal plants, ginger (Zingiber officinale) and turmeric (Curcuma longa) was made by irrigation with distillery spentwash of different proportions. The spentwash i.e., primary treated spentwash (PTSW) and 33% spentwash were analysed for their plant nutrients such as nitrogen, phosphorus, potassium and other physical and chemical parameters. Experimental soils i.e., normal soil and spentwash treated soils were tested for their chemical and physical parameters. Cultivation was done by irrigated with raw water (RW) and 33% spentwash. Influence of spentwash in normal and spentwash treated soils on proximate principles (moisture, protein, fat, fiber, carbohydrate, energy, calcium, phosphorus, iron), vitamin content (carotene and vitamin- C), minerals and trace elements (magnesium, sodium, potassium, copper, manganese, zinc, chromium, nickel) of plants were investigated at their respective maturity. It was found that the nutrients of all medicinal plants were high in 33% than raw water irrigation. Further, the nutritive values were very high in spentwash treated soil than normal soil and raw water irrigations.