Agroecological practices to reduce red rice effects. Sunflower (Heliantus annus L) rotation and soil management

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G. S. Díaz

Abstract

In �??Los Palacios�?� Rice Research Station from
the National Institute of Agricultural Sciences (INCA), within
1999-2001 period, the present work was developed under a
Randomized Block design with four repetitions, where two
new agroecological practices as an alternative solution were
proved to chemically control red rice. The annual ricesunflower
rotation was common to both practices; after
sunflower cultivation, the soil was subjected to a different
management to diminish red rice seed reserves. One treatment
was dry farming encouraging germination and removing plants.
The other one was flooding soil for 30 days, encouraging
germination and preparing the soil by the continuous mud
technology . Results were compared with the soil management
given to productive practice, consisting of: chemical
disinfection and preparation without controling red rice. The
rice-sunflower rotation and dry soil farming eliminated more
than 98 % of the mixture and increased commercial rice yield
from 1.1 to 5.1 t.ha-1. Profits surpassed 1 200.00 pesos.ha-1.

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How to Cite
Díaz, G. S. (2013). Agroecological practices to reduce red rice effects. Sunflower (Heliantus annus L) rotation and soil management. Cultivos Tropicales, 27(1), 71–74. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/397
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Original Article