Abstract
Abstract In greenhouse studies with radish ( Raphanus sativus L.), KNO 3 , (NH 4 ) 2 SO 4 , urea, dried sewage sludge, and dried cow manure were applied at 200, 400, and 800 mgN/1,200 g soil with 0 or 10 ppm of nitrapyrin. Soil analysis for pH, and indicated that nitrification was inhibited throughout the growth (38 days) of the plants. Nitrogen deficiency limited plant growth at the 2 low rates of application of organic fertilizers. With the ammoniacal fertilizers, toxicity restricted root and shoot growth at the highest rate of N and especially in the presence of nitrapyrin relative to the KNO 3 regimes. An interaction of nitrapyrin with the organic fertilizers limited root growth. This restriction was attributed partially to toxicity. Some indication of nitrapyrin toxicity was suggested by plant foliar appearance with the organic fertilizers but not with the inorganic sources. Ca and Mg concentrations varied with treatment, with increased rate of N and nitrapyrin addition sharply restricting their accumulation, especially with the ammoniacal and organic fertilizers. Percentage of K in the plants changed in a reciprocal manner to that of Ca or Mg. Compositional changes suggested that toxicity was a major factor causing a limitation of growth with the combination of nitrapyrin with ammoniacal or organic fertilizers.
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Claims 8
Claim · model-written summary
Nitrification was inhibited throughout radish growth.
- Taxon
- radish
Raphanus sativuse1 - Outcome
- nitrification was inhibitede0
- Value
- 38 dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrification was inhibited throughout the growth (38 days) of the plants”
e1“radish ( Raphanus sativus L.)”
Claim · model-written summary
Low organic fertilizer rates limited radish growth through nitrogen deficiency.
- Taxon
- radishRaphanus sativuse1
- Treatment
- organic fertilizerse0
- Outcome
- plant growthe0
- Direction
- limitede0
- Qualifier
- 2 low ratese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen deficiency limited plant growth at the 2 low rates of application of organic fertilizers”
e1“radish ( Raphanus sativus L.)”
Claim · model-written summary
High ammoniacal N restricted radish root and shoot growth, especially with nitrapyrin, relative to KNO 3.
- Taxon
- radishRaphanus sativuse1
- Treatment
- ammoniacal fertilizerse0
- Outcome
- root and shoot growthe0
- Direction
- restrictede0
- Qualifier
- especially in the presence of nitrapyrine0
- Comparator
- KNO 3 regimese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the ammoniacal fertilizers, toxicity restricted root and shoot growth at the highest rate of N and especially in the presence of nitrapyrin relative to the KNO 3 regimes”
e1“radish ( Raphanus sativus L.)”
Claim · model-written summary
Nitrapyrin with organic fertilizer limited radish root growth.
- Taxon
- radishRaphanus sativuse1
- Treatment
- nitrapyrin with the organic fertilizerse0
- Outcome
- root growthe0
- Direction
- limitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An interaction of nitrapyrin with the organic fertilizers limited root growth”
e1“radish ( Raphanus sativus L.)”
Claim · model-written summary
Foliar appearance suggested nitrapyrin toxicity with organic but not inorganic fertilizers.
- Taxon
- radishRaphanus sativuse1
- Treatment
- nitrapyrine0
- Outcome
- plant foliar appearancee0
- Comparator
- inorganic sourcese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some indication of nitrapyrin toxicity was suggested by plant foliar appearance with the organic fertilizers but not with the inorganic sources”
e1“radish ( Raphanus sativus L.)”
Claim · model-written summary
Increasing N rate and nitrapyrin sharply restricted radish Ca and Mg accumulation.
- Taxon
- radishRaphanus sativuse1
- Treatment
- increased rate of N and nitrapyrin additione0
- Outcome
- Ca and Mg concentrationse0
- Direction
- restrictinge0
- Qualifier
- especially with the ammoniacal and organic fertilizerse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ca and Mg concentrations varied with treatment, with increased rate of N and nitrapyrin addition sharply restricting their accumulation, especially with the ammoniacal and organic fertilizers”
e1“radish ( Raphanus sativus L.)”
Claim · model-written summary
Radish K percentage changed reciprocally to Ca or Mg.
- Taxon
- radishRaphanus sativuse1
- Compound
- Ca or Mge0
- Outcome
- Percentage of Ke0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Percentage of K in the plants changed in a reciprocal manner to that of Ca or Mg”
e1“radish ( Raphanus sativus L.)”
Claim · model-written summary
Compositional changes suggested toxicity as a major cause of growth limitation under nitrapyrin with ammoniacal or organic fertilizers.
- Taxon
- radishRaphanus sativuse1
- Treatment
- combination of nitrapyrin with ammoniacal or organic fertilizerse0
- Outcome
- limitation of growthe0
- Qualifier
- toxicitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compositional changes suggested that toxicity was a major factor causing a limitation of growth with the combination of nitrapyrin with ammoniacal or organic fertilizers”
e1“radish ( Raphanus sativus L.)”
The same questions in other papers
nitrapyrin · nutrient: content · Raphanus sativus (radish)Results agree
2 papers in the same direction as this paper
- negative
- negative
nitrapyrin · growth · Raphanus sativus (radish)Results agree
4 papers in the same direction as this paper
- negative
- negative
- negative
1 paper more in this group
See all 5 papers →fertilization · growth · Raphanus sativus (radish)Positive and negative results
20 papers in the same direction as this paper · 90 in the opposite direction
- negative
- positive
- positive
107 papers more in this group
See all 111 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.