Abstract
Brown planthopper (BPH), Nilaparvata lugens (Stål) is a major insect pest of rice in Bangladesh. Nutrient management in rice received little attention on BPH population. The present study evaluated the consequences of nitrogen (N), phosphorus (P) and potassium (K) application on population build up and weight of BPH in the laboratory and net-house at Entomology Division, Bangladesh Rice Research Institute. Three levels of soil nitrogen (0, 100, 200 kg N ha-1), phosphorus (0, 20, 40 kg P2O5 ha-1) and potassium (0, 60, 120 kg K2O ha-1) were compared for individual and combined effects. Interactions of N, P and K demonstrated no significant effect on population growth and weight of BPH. However, interaction of N and P showed significant effect on population growth of BPH. Fertilization with nitrogen increased population and dry weight of BPH. Phosphorus fertilization markedly increased the population growth while high potassium application decreased population build up and dry weight of BPH.DOI: http://dx.doi.org/10.3329/brj.v17i1-2.20900Bangladesh Rice j. 2013, 17(1&2): 38-48
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Claims 7
Claim · model-written summary
Combined N, P and K had no significant effect on BPH population growth or weight.
- Taxon
- rice
Oryza sativat0 - Treatment
- N, P and Ke0
- Interactor
- BPHe0pest
- Outcome
- population growth and weight of BPHe0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Interactions of N, P and K demonstrated no significant effect on population growth and weight of BPH.”
t0“rice in Bangladesh”
Claim · model-written summary
N and P interaction significantly affected BPH population growth.
- Taxon
- riceOryza sativat0
- Treatment
- N and Pe0
- Interactor
- BPHe0pest
- Outcome
- population growth of BPHe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“interaction of N and P showed significant effect on population growth of BPH.”
t0“rice in Bangladesh”
Claim · model-written summary
Nitrogen fertilization increased BPH population.
- Taxon
- riceOryza sativat0
- Treatment
- Fertilization with nitrogene0
- Interactor
- BPHe0pest
- Outcome
- populatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization with nitrogen increased population and dry weight of BPH.”
t0“rice in Bangladesh”
Claim · model-written summary
Nitrogen fertilization increased BPH dry weight.
- Taxon
- riceOryza sativat0
- Treatment
- Fertilization with nitrogene0
- Interactor
- BPHe0pest
- Outcome
- dry weight of BPHe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fertilization with nitrogen increased population and dry weight of BPH.”
t0“rice in Bangladesh”
Claim · model-written summary
Phosphorus fertilization increased BPH population growth.
- Taxon
- riceOryza sativat0
- Treatment
- Phosphorus fertilizatione0
- Interactor
- BPHe0pest
- Outcome
- population growthe0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus fertilization markedly increased the population growth while high potassium application decreased population build up and dry weight of BPH.”
t0“rice in Bangladesh”
Claim · model-written summary
High potassium application decreased BPH population buildup.
- Taxon
- riceOryza sativat0
- Treatment
- high potassium applicatione0
- Interactor
- BPHe0pest
- Outcome
- population build upe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high potassium application decreased population build up and dry weight of BPH.”
t0“rice in Bangladesh”
Claim · model-written summary
High potassium application decreased BPH dry weight.
- Taxon
- riceOryza sativat0
- Treatment
- high potassium applicatione0
- Interactor
- BPHe0pest
- Outcome
- dry weight of BPHe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“high potassium application decreased population build up and dry weight of BPH.”
t0“rice in Bangladesh”
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