Abstract
Use of fertilizer within plant protection system can prove a key factor for pest management strategy. The effects of Zinc sulfate (33% - Zn) fertilizer on the incidence of rice stem borers (Scirpophaga species) (Lepidoptera: Pyralidae) in rice crop were investigated. The Zn was applied using broadcast method at three levels (20, 25 and 30 kg/ha) in the vicinity of the roots, 30 days after crop transplantation. The results of field experiment on rice cultivars Shadab and Mehak showed that Zn had significant influences on the stem borers population and paddy yield over the unfertilized control. Average yield per hectare was increased at all doses of Zn and by applying it at the rates of 20, 25 and 30 kg/ha, the differences in grain yield were not significant, but production increased significantly over the untreated crop due to varying pest prevalence. With respect to borers incidence, higher dose 30 kg Zn/ha markedly decreased infestation, while, applications at 20 and 25 kg permitted slightly more deadhearts and whiteheads incidence, but differed significantly from unfertilized control. The present study implies that due to suppressive effects of Zn fertilizer on the incidence of the rice stem borers at crop maturity stage increased grain yield, and the use of soil amendments strategy can create an unfavorable environment for pest inducing resistance through anti biosis or feeding inhibition. Key words: Rice, Oryza sativa, Scirpophaga, insect control, rice stem borer, Zinc.
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Claims 7
Claim · model-written summary
Zinc fertilizer significantly affected stem borer population versus unfertilized rice.
- Taxon
- rice
Oryza sativat0 - Treatment
- Zne0
- Interactor
- stem borerse0pest
- Outcome
- stem borers populatione0
- Comparator
- unfertilized controle0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn had significant influences on the stem borers population and paddy yield over the unfertilized control.”
t0“rice stem borers”
Claim · model-written summary
Zinc fertilizer significantly increased paddy yield versus unfertilized rice.
- Taxon
- riceOryza sativat0
- Treatment
- Zne0
- Outcome
- paddy yielde0
- Direction
- increaseinferrede0
- Comparator
- unfertilized controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Zn had significant influences on the stem borers population and paddy yield over the unfertilized control.”
t0“rice stem borers”
Claim · model-written summary
All zinc doses increased average rice yield, with no significant yield differences among doses.
- Taxon
- riceOryza sativat0
- Treatment
- Zne0
- Outcome
- Average yield per hectaree0
- Direction
- increasede0
- Qualifier
- 20, 25 and 30 kg/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Average yield per hectare was increased at all doses of Zn and by applying it at the rates of 20, 25 and 30 kg/ha, the differences in grain yield were not significant”
t0“rice stem borers”
Claim · model-written summary
The 30 kg Zn/ha dose markedly decreased stem borer infestation.
- Taxon
- riceOryza sativae1
- Treatment
- 30 kg Zn/hae0
- Outcome
- infestatione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher dose 30 kg Zn/ha markedly decreased infestation”
t0“stem borers”
e1“The effects of Zinc sulfate (33% - Zn) fertilizer on the incidence of rice stem borers (Scirpophaga species) (Lepidoptera: Pyralidae) in rice crop were investigated.”
Claim · model-written summary
At 20 kg Zn/ha, deadheart and whitehead incidence was slightly higher than at 30 kg.
- Taxon
- riceOryza sativae1
- Treatment
- 20 and 25 kge0
- Outcome
- deadhearts and whiteheads incidencee0
- Direction
- moree0
- Comparator
- unfertilized controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applications at 20 and 25 kg permitted slightly more deadhearts and whiteheads incidence, but differed significantly from unfertilized control.”
t0“stem borers”
e1“The effects of Zinc sulfate (33% - Zn) fertilizer on the incidence of rice stem borers (Scirpophaga species) (Lepidoptera: Pyralidae) in rice crop were investigated.”
Claim · model-written summary
Authors linked zinc suppression of stem borers at maturity to increased grain yield.
- Taxon
- riceOryza sativae0
- Treatment
- Zn fertilizere0
- Interactor
- stem borerse0pest
- Outcome
- grain yielde0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suppressive effects of Zn fertilizer on the incidence of the rice stem borers at crop maturity stage increased grain yield”
Claim · model-written summary
Authors proposed soil amendments for pest resistance through antibiosis or feeding inhibition.
- Taxon
- riceOryza sativat0
- Outcome
- use of soil amendments strategye0
- Qualifier
- anti biosis or feeding inhibitione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of soil amendments strategy can create an unfavorable environment for pest inducing resistance through anti biosis or feeding inhibition.”
t0“rice stem borers”
The same questions in other papers
zinc atom · yield · Oryza sativa (rice)Results differ
388 papers in the same direction as this paper · 28 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- negative
- no effect
415 papers more in this group
See all 419 papers →zinc atom · pest · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.