3 research outputs found
Sunflower growth irrigated with sewage effluent under organic fertilization
In the semi-arid region of Brazil due to water scarcity, the use of alternative water sources is of vital importance, such as the use of saline waters and treated sewage effluents. Therefore, in the present work, the growth of sunflower plants irrigated with tap water and treated domestic sewage effluent, associated with organic fertilization was evaluated. The research was carried out in a protected environment at the Federal University of Campina Grande, Campus I, Campina Grande, PB. A completely randomized experimental design with factorial arrangement was used (4 x 2) + 2, with 5 repetitions. the treatments consisted of organic manure dosages (7.5, 10, 12.5 and 15% of manure on a weight basis) and two water sources (supply water and treated domestic sewage effluent). According to the results obtained, it can be indicated that the use of domestic sewage effluent for sunflower irrigation increased sunflower growth in relation to the use of water supply. The application of manure doses of 12.5 and 15% improved the early growth of the sunflower, with significant increases in the growth variables
Chemical characteristics of soil irrigated with produced water treatment and underground water
Irrigation effects of produced water treatment, diluted in underground water, were analyzed through the chemical characteristics of argisol
with foraging palm. Assay was performed in a randomized block design (RBD), with five replications, in a subdivided split plot scheme.
Splits comprised treatments T1 (100% underground water - UW, control), T2 (75% UW and 25% produced water treatment - PW), T3
(50% UW and 50% PW), T4 (25% UW and 75% PW) and T5 (100% PW), whilst sub splits comprised soil depths (0 - 0.10 m and 0.10 -
0.20 m). The results showed that irrigation with diluted treated water produced no risk of soil salinization. There was evidence of leaching
of the mobile ions to the deeper layer of soil, especially sodium and magnesium. The highest risk of sodification was observed for soil
irrigated only with groundwater (T1 - control treatment).Los efectos de riego del tratamiento del agua producida, diluida en agua subterr谩nea, se analizaron a trav茅s de las caracter铆sticas qu铆micas
del argisol con palma de forrajeo. El experimento se estableci贸 en un delineamiento experimental de bloques al azar (DBA), con cinco
repeticiones, en un esquema de parcelas subdivididas. Las parcelas comprendieron los tratamientos T1 (100% agua subterr谩nea - AS,
control), T2 (75% AS y 25% de agua producida - AP), T3 (50% AS y 50% AP), T4 (25% AS y 75% AP) y T5 (100% AT), y en las
subparcelas comprendieron las profundidades de muestreo del suelo (0 - 0,10 m y 0,10 - 0,20 m). Los resultados revelaron que la irrigaci贸n
con agua producida tratada diluida no provoc贸 riesgo de salinizaci贸n del suelo. Hubo indicio de lixiviaci贸n de los iones m贸viles para la
capa m谩s profunda del suelo, principalmente sodio y magnesio. El mayor riesgo de sodificaci贸n fue observado para el suelo irrigado s贸lo
con agua subterr谩nea (T1 - tratamiento control
Water consumption of the sunflower crop irrigatedwith saline water
The objective was to evaluate the water consumption of sunflower cultivars irrigated with saline waters. The experimental design utilized was in randomized blocks of a 2 x 4 factorial arrangement. This was composed of two levels of electrical conductivity (ECw) of irrigation water (N1 - 0.6 and N2 - 3.0 dS m-1 at 25 潞C) and four cultivars of sunflower (C1 - Helio 863, C2 - Embrapa 122-V2000, C3 - Catissol 01 and C4 - Multissol), with three replications, each of them with three plants totaling 72 experimental units. There was a reduction in water consumption of sunflower cultivars irrigated with saline water (N2 - 3.0 dS m-1). The irrigation with saline water resulted in a greater volume of drained water in all sunflower cultivarsEste trabajo tiene como objetivo evaluar el consumo de agua de cultivares de girasol regados con aguas salinas. El dise帽o experimental utilizado fue de bloques al azar con arreglo factorial 2 x 4. 脡ste se compuso de 2 niveles de conductividad el茅ctrica (CEa) del agua de riego (N1 - 0,6 y N2 - 3,0 dS m-1 a 25 潞C) y cuatro cultivares de girasol (C1 - Helio 863, C2 - Embrapa 122-V2000, C3 - Catissol 01 y C4 - Multissol), con 3 repeticiones, y cada una de ellas con 3 plantas, totalizando 72 unidades experimentales. Se observ贸 una reducci贸n del consumo de agua de los cultivares de girasol regados con agua salina (N2 - 3,0 dS m-1). El riego con agua salina result贸 en un mayor volumen de agua drenado, en todos los cultivares de giraso