The Influence of the Foliar Application of Urea, Licorice and Garlic Extract on Nutrients Uptake and Yield of Wheat Plants Grown on Sandy Soil. a Comparative Study.

The provision of the needs of Egypt's wheat is the hardest challenge in light of the widening gap between production and the increasing demands to this crop, especially with increasing population and water resources shortage in Egypt. So, two field experiments were conducted of urea fertilizer (1and 2 %), licorice (5 and 10%) and garlic extract (0.5 and 1%) as a foliar application on wheat aspects, N, K, P content and uptake under sandy soil conditions. The used experimental design was a complete randomized block design with three replicates. The treatments were added three times at 30, 45 and 60 days after sowing .The obtained results illustrated that the used treatments significantly affected wheat plant. The highest grains and straw yield values were recorded with 0.5 % garlic extract followed by 1 % garlic extract, then 2 % urea, while the lowest values were occurred with the control treatment in both seasons. The best biological yield values (5475.6 and 6359.34 kg fed^-1) in both seasons were found with the treatment of 0.5 % garlic extract. The total nitrogen content in straw was significantly affected by all used treatments where, it increased with the treatments of 1 % urea, 2% urea followed by 0.5 % garlic extract and decreased significantly with the treatment of 10% licorice extract compared with the control. The all used treatments were significantly increased potassium uptake by grains and straw compared with the control treatment. Phosphorus uptake in grains was significantly increased with increasing urea, garlic extract concentration and 5 % licorice extract while, it decreased with ­the treatments of 10 % licorice extract.  Finally, it could be concluded that natural garlic extract is the best  for enhancing  wheat plant production and at the same time reducing the use of urea as a chemical fertilizer.