Intermittent circulation of simplified deep flow technique hydroponic system increases yield efficiency and allows application of systems without electricity in Haiti

Table 2 pH and E.C. of Victory Garden systems growing BSS under constant or intermittent circulation

Replicate	Treatment	E.C. Week 1	pH Week 1	E.C. final	pH final
1	Constant	1057.00 ± 27.11	7.13 ± 0.03	641.75 ± 70.49	7.22 ± 0.05
1	Intermittent	1016.25 ± 36.42	7.09 ± 0.01	730.25 ± 63.60	7.12 ± 0.01
2	Constant	1008.75 ± 68.52	6.17 ± 0.03	919.75 ± 125.73	7.83 ± 0.04
2	Intermittent	1132.75 ± 45.42	6.13 ± 0.03	824.50 ± 73.29	7.91 ± 0.04
3	Constant	752.75 ± 32.69	7.01 ± 0.06	619.75 ± 94.82	7.68 ± 0.01
3	Intermittent	838.00 ± 33.27	6.89 ± 0.07	596.5 ± 25.47	7.4 ± 0.05^a

E.C. values are measured in µS/cm³. VIVOSUN pH and E.C. meters were used for all pH and E.C. measurements, respectively
^aSignificant difference between treatments according to a Wilcoxon rank sum test, p < 0.05

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