Irrigation water management in rice crop (Oryza sativa L.) by transplant, it’s effect on the agricultural and industrial performance
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Abstract
spends most of its life cycle with flooding and exhibits high
adaptability to these conditions, consequently its production
consumes a lot of water, although less than in the cultivation
by direct seeding. This research was conducted to evaluate
the effect of irrigation water management in the agricultural
and industrial yield of rice transplanting technology. Plants
remained in flooded conditions throughout the cycle and
plants undergoing suspension of the water surface for a
period of 15 at three different times tillering stage were
evaluated. The suspension of the water level increased
agricultural yields between 16 and 32 % over the flooded
control and industrial yield was 67 % on average. The highest
percentage of whole grains were obtained in the treatments
under suspension of the sheet, achieving the best results
with the suspension at 30 DDT. This operation allows water
savings of approximately 1 931,4 m3 ha-1, for the flooded
treatment. The water saved would increase the area under
irrigation by 11,19 % for rice cultivation.
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