Abstract
This study examined the effectiveness of nitrogen fertilization and application of microbiological preparations in potato cultivation. The experiment factors were doses of nitrogen of 0, 60, 120, and 180 kg N ha^{-1} and microbial preparations of BactoFil B10, Effective Microorganisms EM, and UGmax. The amount of inorganic N in the 0-0.9 m soil layer before potato planting fluctuated from 63.5 to 80.4 kg N ha^{-1}, while after harvest it ranged from 44.4 to 119.7 kg N ha^{-1}. Nitrogen supply from mineralization during potato vegetation ranged from 36.1 to 46.3 kg N ha^{-1}. Each of the applied nitrogen doses caused a marked increase in potato-plant productivity in comparison with a smaller dose. Growing nitrogen doses decreased the value of the fertilization effectiveness index. Application of microbial preparations led to an increase in soil nitrogen content after plant harvesting and a lower uptake of N, diminishing the indices of NUE, NUpE, NAE, and NRF.
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Claims 9
Claim · model-written summary
Inorganic nitrogen in the 0-0.9 m soil layer was 63.5 to 80.4 kg N ha^{-1} before potato planting.
- Taxon
- potato
Solanum tuberosumt0 - Outcome
- amount of inorganic N in the 0-0.9 m soil layere0
- Value
- 63.5 to 80.4 kg N ha^{-1}e0
- Qualifier
- before potato plantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato cultivation”
e0“The amount of inorganic N in the 0-0.9 m soil layer before potato planting fluctuated from 63.5 to 80.4 kg N ha^{-1}”
Claim · model-written summary
Inorganic nitrogen in the soil after harvest ranged from 44.4 to 119.7 kg N ha^{-1}.
- Taxon
- potatoSolanum tuberosumt0
- Outcome
- after harvest it rangede0
- Value
- 44.4 to 119.7 kg N ha^{-1}e0
- Qualifier
- after harveste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato cultivation”
e0“while after harvest it ranged from 44.4 to 119.7 kg N ha^{-1}”
Claim · model-written summary
Mineralization supplied 36.1 to 46.3 kg N ha^{-1} during potato vegetation.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- Nitrogen supply from mineralizatione0
- Value
- 36.1 to 46.3 kg N ha^{-1}e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen supply from mineralization during potato vegetation ranged from 36.1 to 46.3 kg N ha^{-1}”
Claim · model-written summary
Each increase in applied nitrogen dose increased potato productivity compared with a smaller dose.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- applied nitrogen dosese0
- Outcome
- potato-plant productivitye0
- Direction
- increasee0
- Comparator
- a smaller dosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Each of the applied nitrogen doses caused a marked increase in potato-plant productivity in comparison with a smaller dose”
Claim · model-written summary
Increasing nitrogen doses decreased the fertilization effectiveness index.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Growing nitrogen dosese0
- Outcome
- fertilization effectiveness indexe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato cultivation”
e0“Growing nitrogen doses decreased the value of the fertilization effectiveness index”
Claim · model-written summary
Microbial preparations increased soil nitrogen after potato harvest.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- microbial preparationse0
- Outcome
- soil nitrogen contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato cultivation”
e0“Application of microbial preparations led to an increase in soil nitrogen content after plant harvesting”
Claim · model-written summary
Microbial preparations lowered nitrogen uptake.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- microbial preparationse0
- Outcome
- uptake of Ne0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato cultivation”
e0“Application of microbial preparations led to an increase in soil nitrogen content after plant harvesting and a lower uptake of N, diminishing the indices of NUE, NUpE, NAE, and NRF”
Claim · model-written summary
Microbial preparations diminished NUE, NUpE and NAE indices.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- microbial preparationse0
- Outcome
- indices of NUE, NUpE, NAEe0
- Direction
- diminishinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato cultivation”
e0“Application of microbial preparations led to an increase in soil nitrogen content after plant harvesting and a lower uptake of N, diminishing the indices of NUE, NUpE, NAE, and NRF”
Claim · model-written summary
Microbial preparations diminished the NRF index.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- microbial preparationse0
- Outcome
- NRFe0
- Direction
- diminishinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“potato cultivation”
e0“Application of microbial preparations led to an increase in soil nitrogen content after plant harvesting and a lower uptake of N, diminishing the indices of NUE, NUpE, NAE, and NRF”
The same questions in other papers
nitrogen · yield · Solanum tuberosum (potato)Results differ
108 papers in the same direction as this paper · 20 in the opposite direction · 3 reporting no difference from an alternative
- positive
- positive
- no effect
128 papers more in this group
See all 132 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.