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Studies on The Availability of Azolla N and Urea N for Rice Growth Using 15N
(IPB (Bogor Agricultural University), 1989)
Field experiments (20 m2 plots) were conducted to compare Azolla and urea as N sources for rice (Oryza sativa L.) in both the wet and dry seasons. Parallel microplot (1 m2) experiments were conducted using 15N. A total of ...