S. Dasberg

TL;DR: In this article, the efficiency and balance of nitrogen from one year's application was studied in a long-term fertigation experiment, where enriched nitrogen fertilizer, K15NO3, was applied to a 22-year-old Shamouti orange tree with a history of high N applications (N3) and to an N-starved tree (N1).

TL;DR: It was concluded that the nitrogen contained in the soil organic matter and in the mature trees plays an important part in the regulation of N supply to the growing parts of the tree.

TL;DR: An irrigation experiment with water of different salinities (2.8, 7.6 and 12.7 mol Cl m−3) was carried out from 1982 to 1988 in a mature "Shamouti" orange grove in the coastal plain of Israel.

TL;DR: In this article, the effects of different amounts of nitrogen fertilizer supplied in the irrigation water on nitrogen uptake, orange yield and quality of Shamouti oranges was studied in a field experiment in a mature orange grove.