Abstract
This paper evaluates the nutritional impact on growth, production and quality variables of gerbera crop when fertigated with treated domestic effluents. An experiment was carried out in greenhouse at the Embrapa Meio-Norte in Teresina, in the State of Piauí, Brazil, from July to October 2007. A completely randomized experimental design with five treatments and five replications was adopted. The treatments investigated were T1 - 100% of water and nutritional requirements of crop were met with chemical fertigation (N e K2 O); T2 - 25% volume of water through fertigation and 75% treated wastewater effluents (TWE); T3: 50% volume of water through fertigation and 50% TWE; T4: 75% volume of water with fertigation and 25% TWE; and T5 - 100% volume of water supplied through TWE. Leaf growth and plant development were favored by the application of 50% fertigation and 50% TWE (T3). As for commercial requirements, the best results for number of flowers were obtained with T4. However, concerning quality, T2 produced flowers in July and August with longer stems, but in the months of September and October, no treatment achieved this standard due to high temperature and low relative humidity of the air in the region.
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Claims 4
Claim · model-written summary
A 50% fertigation and 50% treated wastewater mixture favored gerbera leaf growth and development.
- Treatment
- 50% fertigation and 50% TWE (T3)e0
- Outcome
- Leaf growth and plant developmente0
- Direction
- favorede0
GerberaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaf growth and plant development were favored by the application of 50% fertigation and 50% TWE (T3)”
t0“gerbera”
Claim · model-written summary
T4 gave the best number of gerbera flowers.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the best results for number of flowers were obtained with T4”
t0“gerbera”
Claim · model-written summary
T2 produced longer flower stems in July and August.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T2 produced flowers in July and August with longer stems”
t0“gerbera”
Claim · model-written summary
No treatment met the flower stem standard in September and October.
- Outcome
- no treatment achieved this standarde0
- Qualifier
- high temperature and low relative humidity of the aire0
- Setting
- regione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the months of September and October, no treatment achieved this standard due to high temperature and low relative humidity of the air in the region”
t0“gerbera”
The same questions in other papers
fertilization · growth · GerberaPositive and negative results
13 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- positive
11 papers more in this group
See all 15 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.