Arroz: ensaio fatorial variedade x espaçamento x densidade
ResumoIn this experiment it was attempted to find better row spacing (0,20 m, 0,40 m and 0,60 m) and seed rate (3 and 6 grams of seeds/m) to be used in rice. The ordinary flooding was used as irrigation. Four varieties with different flowering periods were used: "Pratão" and "Iguape Agulha" are late varieties (150 days); "Batatais", "Dourado Precoce" early varieties (100 days). These two early varieties produce two harvests by ratooning. The data showed that the late varieties gave a better yeld on a single crop, but the greatest annual yeld by area was obtained when the ratooning was used. As far as amount of seed is concerned the data showed that the better yelds were obtained with 3 grams of seeds.
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Orsi, E., & Godoy, O. (1966). Arroz: ensaio fatorial variedade x espaçamento x densidade . Anais Da Escola Superior De Agricultura Luiz De Queiroz, 24, 45-55. https://doi.org/10.1590/S0071-12761967000100004