USE OF BRACKISH WATER IN THE PRODUCTION OF ROCKET CULTIVATED IN COCONUT FIBER SUBSTRATE

作者：da Silva Santos Rafaelly Suzanye; Dias Nildo da Silva; Duarte Sergio Nascimento; de Souza Lima Carlos Jose Goncalves

来源：Revista Caatinga, 2012, 25(1): 113-118.

• Eruca sativa
• Salinity
• Electrical conductivity
• Irrigation

The brackish water can be used on profitable agricultural production, depending on the adoption of appropriated crop practices and the crop tolerance to salinity as well. The hydroponic system can contribute when it is used with brackish water on horticulture production, because the great state of saturation that plants is submitted enables the increase of crop tolerance to salinity. This paper evaluated the effect of salinity on nutritive solution of rocket (Eruca sativa L.), cv. "Cultivada", cultivated in coconut fiber substrate under protected conditions. The experiment was carried out in randomized blocs design, with four types of water, added with NaCl, one was the control (S(1) = 2.0; S(2) = 3.5; S(3) = 4.5 and S(4) = 5.5 dS m(-1)), applied in four development stages (1st week, 2nd week, 3th week and 4th week after the transplantation) with four repetitions. The evaluated characteristics were the crown diameter, fresh and dry weight of the canopy. The results showed that increasing salinity levels decreased the fresh biomass. The first and second growth week of cultivation times were more sensitive to application of saline water with reduction 9.7% on the fresh biomass.

• 出版日期2012