Vol. 6, Issue 2 (2018)
Effect of different nitrogen sources and their levels on leaf and soil nutrient status of apple (Malus × domestica Borkh.) cv. Starking Delicious
Author(s): Garima Bhickta, Neena Chauhan and NC Sharma
Abstract: Apple (Malus × domestica Borkh.) native to Asia Minor, Caucasus and Central Asia and is one of the economically important and widely grown fruit crop in temperate regions of the world. Nitrogenous fertilizers in addition to phosphorus and potassium fertilizers have paramount importance in plant growth and fruit quality production. The present studies investigate the effect of different nitrogen sources and their levels on nutrient status of apple (Malus X domestica Borkh) cv. Starking Delicious was conducted during the year 2016-17 at private orchard, Sandhu, Theog (H.P). The study consisted of ten treatments viz; T1:100% RD of N, 60% through A + 40% through B; T2: 100% RD of N, 40% through A + 60% through B, T3:100% RD of N, 50% through A + 50% through B; T4: 75% RD of N, 60% through A + 40% through B; T5: 75% RD of N, 40% through A + 60% through B; T6: 75% RD of N, 50% through A + 50% through B; T7: 50% RD of N, 60% through A + 40% through B; T8: 50% RD of N, 40% through A + 60% through B; T9: 50% RD of N, 50% through A + 50% through B; T10: 100% of RD through Calcium Nitrate. These treatments were given from two sources (Mila complex: 12:11:18 and Nitrobor: 14.5%), replicated three times and experiment was laid out in Randomized Block Design. The results revealed that fertilization with 100% RD of N, 40% through A + 60% through B (T2) significantly enhanced leaf nitrogen, phosphorus and calcium and soil potassium, whereas, maximum leaf potassium, magnesium, soil nitrogen and soil phosphorus was recorded in T1 (100% RD of N, 60% through A + 40% through B). The apple trees subjected to lower level of nitrogen i.e. 50% of recommended dose of nitrogen resulted in lowest nutrient status and highest pH of apple plant. 100% recommended dose of N, 60% through A + 40% through B gave better results as compared to 100% of recommended dose of nitrogen through CaNO3.
Pages: 2022-2025 | 607 Views 62 Downloads
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How to cite this article:
Garima Bhickta, Neena Chauhan, NC Sharma. Effect of different nitrogen sources and their levels on leaf and soil nutrient status of apple (Malus × domestica Borkh.) cv. Starking Delicious. Int J Chem Stud 2018;6(2):2022-2025.
