Flame seedless grapevines received 40 unite (N) of real nitrogen per feed over the 2020 and 2021 growing seasons. Approximately 57.1 g/N/vine of nitrogen was applied as 100% mineral fast release fertilizers (Ammonium nitrate) or as 25–50% quick release N fertilizers, specifically urea formaldehyde, urea with a phosphate coating, and urea with a sulfur coating. The purpose was to choose the optimal slow-release Nitrogen fertilizers and ratio among various Nitrogen sources. In terms of growth and yield, besides the physical and chemical traits of the berries, using nitrogen as 25% fast-release mineral nitrogen (ammonium nitrate) in addition to 75% slow-release nitrogen fertilizer (urea formaldehyde, phosphorus-loaded urea, and sulfur-loaded urea) produced the best results. With the application of nitrogen as a 100% fast-release mineral, ammonium nitrate, these features were reduced. Urea with a sulfur coating was the most effective slow-release Nitrogen fertilizer in this respect, followed shortly thereafter by urea alongside a phosphorus coating and urea-formaldehyde. It is advised to use 25% fast release nitrogen (ammonium nitrate plus 75% slow-release nitrogen fertilizer) for Flame seedless grapevines to increase yield and berry quality (sulfur-coated urea).
Saeed, H., & Shoug, M. (2023). Attempts to Improvement the Growth and Fruiting of Flame Seedless Grapevines Growing in Sandy Soil Using Slow-Release Nitrogen Fertilizers. Hortscience Journal of Suez Canal University, 12(1), 10-17. doi: 10.21608/hjsc.2023.337427
MLA
Hussien H.M. Saeed; Mubarak A. Shoug. "Attempts to Improvement the Growth and Fruiting of Flame Seedless Grapevines Growing in Sandy Soil Using Slow-Release Nitrogen Fertilizers". Hortscience Journal of Suez Canal University, 12, 1, 2023, 10-17. doi: 10.21608/hjsc.2023.337427
HARVARD
Saeed, H., Shoug, M. (2023). 'Attempts to Improvement the Growth and Fruiting of Flame Seedless Grapevines Growing in Sandy Soil Using Slow-Release Nitrogen Fertilizers', Hortscience Journal of Suez Canal University, 12(1), pp. 10-17. doi: 10.21608/hjsc.2023.337427
VANCOUVER
Saeed, H., Shoug, M. Attempts to Improvement the Growth and Fruiting of Flame Seedless Grapevines Growing in Sandy Soil Using Slow-Release Nitrogen Fertilizers. Hortscience Journal of Suez Canal University, 2023; 12(1): 10-17. doi: 10.21608/hjsc.2023.337427