Effect of reclaimed water and dehydrated sludge on the morpho-physiology and yield of sorghum

The effect on the morpho-physiological parameters and yield of sorghum cultivated in a greenhouse with reclaimed water (RW) and (dehydrated sludge (DS) obtained in a sewage treatment plant, was evaluated. Six treatments (T), with five repetitions each, were carried out in entirely randomized blocks....

Full description

Saved in:
Bibliographic Details
Published in:Environmental technology 2024-07, Vol.45 (17), p.3479-3495
Main Authors: Souza Filho, Edecio José, Barros, Kenia Kelly, Bezerra Neto, Egidio, Gavazza, Savia, Florencio, Lourdinha, Kato, Mario Takayuki
Format: Article
Language:English
Subjects:
Amino acids
Crop yield
Dehydration
Farm buildings
Grain
Metabolites
Parameters
Physiological effects
Physiology
proline
Reclaimed water
reuse
Semi arid areas
semiarid
Semiarid lands
Sewage treatment
Sewage treatment plants
Sludge
Sorghum
Stems
Wastewater treatment plants
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The effect on the morpho-physiological parameters and yield of sorghum cultivated in a greenhouse with reclaimed water (RW) and (dehydrated sludge (DS) obtained in a sewage treatment plant, was evaluated. Six treatments (T), with five repetitions each, were carried out in entirely randomized blocks. Water (W) was used in T1 (W) (control), T2 (W + NPK), and T3 (W + DS); RW was used in T4 (RW), T5 (RW + P), and T6 (RW + DS). The results showed that irrigation with only RW (T4), or W + DS (T3) was very suitable for the cultivation since an adequate nutritional supply was provided. The positive effects on the morpho-physiological parameters, plant height, stem diameter and stem length (in cm), were: T3 - 148.8, 1.50, and 103, respectively; T4 - 154, 1.70, and 107, respectively; and on the grain production in weight of 1000 seeds (g), and productivity in grains per plant: T3 - 6.97 and 1453, respectively; T4 - 6.81 and 1636, respectively. Both treatments showed for most of the parameters, no significant differences compared with those of T2 or T5 with supplementary fertilizers. A high production of metabolites (mg g -1 ) like free amino acids was also shown: T3 - 6.45; T4 - 8.43 and proline: T3 - 1.86; T4 - 1.77, known to be a good indication of a plant natural defence against stress conditions, and in soluble protein: T3 - 11.20; T4 - 13.51. Therefore, since the production of such grains with RW or DS can be environmentally and economically beneficial, their use is recommended for small and medium farmers in semiarid regions.
ISSN:0959-3330
1479-487X
1479-487X
DOI:10.1080/09593330.2023.2219011