Browsing by Author "Droupathi Devi, G"

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    Effect of levels of nitrogen and spacing on the yield of rice
    (Kerala Agricultural University, 1981) Droupathi Devi, G; Vijayagopal, P D; Sasidhar, V K
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    Nitrogen use efficiency and grain yield of rice
    (Kerala Agricultural University, 1980) Droupathi Devi, G; Vijayagopal, P D; Sasidhar, V K
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    Permanent manurial experiment in paddy
    (Kerala Agricultural University, 1979) Vijayagopal, P D; Droupathi Devi, G
    The results of the P. M.E. consisting of treatments receiving organic nitrogen in the form of green leaf or inorganic nitrogen in the form of ammonium sulphate or both and treatments without N, for three successive seasons were reviewed. The results showed that the plots receiving P and K alone gave the lowest y'reld and that P and K failed to show any effect evenafter their discontinuance for 21 continuous seasons. In normal seasons inorganic and organic N were on par as far as grain production was concerned.
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    Studies on the fractional application of nitrogen on the yield of rice
    (Kerala Agricultural University, 1980) Droupathi Devi, G; Vijayagopal, P D; Sasidhar, A V K
    The effect of fractional application of nitrogen on the grain yield of two high yielding rice varieties Jaya and Annapurna was studied for six consecutive seasons during 1972-73 to 1974-75 in the Rice Research Station, Mannuthy. Significant results were obtained in two first crop seasons and the treatments receiving 50 kg N as basal and another quantity of 50 kg N in two equal splits given either at booting and heading or at panicle initiation and booting gave maximum grain yield.