1. KAUTIR (Kerala Agricultural University Theses Information and Retrieval)
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Item Nitrogen econony through incorporation of Azolla in rice(Department of Agronomy, College of Agriculture, Vellayani, 1981) Jaikumaran, U; Sreedharan, CAn experiment was conducted at tho Agronomic Research Station, Chalakudy, during the first and second crop seasons of 1979-80. The effect of basal incorporation of Azolla on growth end yield of rice was investigated in order to assess the caving of nitrogen end evaluate Azolla as an alternate cheap course of R for rice crop. The treatments comprising different levels of recommended does of 17 (0, 50, 75 and 100 per cent of 90 kg N/ha) either alone or in combination with Azolla (5 t/h a) and 100 N with form yard manure (5 t/ha), were replicated thrice and laid out in. The Randomised Block Design