Abstract
Interrelations between NPK nutrients and precipitation were evaluated from 1971 to 2003 using pea as an indicator plant in a long-term fertilization experiment (code: OMTK A-17) was set up on calcareous chernozem soil in Nagyhorcsok in autumn 1967. In the average year the yield on control plots was 2.4 t ha. In dry years the yield dropped to 1.1 t ha without fertilization, a yield reduction of 54 % compared with the average year (2.4 t ha). The yields recorded in treatments with N, NP, NK and NPK (1.9 t ha) indicated that the yield loss that could be attributed to dry weather was 39 %. In the case of drought the pea yield on control plots was 54 % lower than in the average year, while this was reduced to 43.3 % in the N, NP and NK treatments and to 45.2 % in the NPK plots. In excessively wet years yield losses compared to the average years were 41.7 % on unfertilized plots, 25.7 % on N, NP and NK plots and 25.8 % on NPK plots, so fertilization was able to counteract 16 % of the negative effect of excessive rainfall. The correlations is with rainfall during the vegetation period, N, NP, NK and NPK nutrition and the yield could be described using quadratic functions for each nutrition level (0: R = 0.9388***, nitrogen: R = 0.8850***, NP: R = 0.9038***, NK: R = 0.8470***, NPK: R = 0.8747***). The results could serve as a good basis for the scientific description of the complex yield-determining effect of processes making the climate wetter or drier, on a Hungarian, EU and international scale.
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Claims 10
Claim · model-written summary
In the average year pea yield on control plots was 2.4 t ha.
- Taxon
- pea
Lathyrus oleraceust0 - Outcome
- yield on control plotse0
- Value
- 2.4 t hae0
- Qualifier
- In the average yeare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the average year the yield on control plots was 2.4 t ha”
t0“pea”
Claim · model-written summary
In dry years pea yield without fertilization dropped to 1.1 t ha, a 54% reduction compared with the average year.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- without fertilizatione0
- Outcome
- yielde0
- Direction
- droppede0
- Value
- 1.1 t hae0
- Qualifier
- a yield reduction of 54 %e0
- Comparator
- average yeare0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In dry years the yield dropped to 1.1 t ha without fertilization, a yield reduction of 54 % compared with the average year”
t0“pea”
Claim · model-written summary
In the N, NP, NK and NPK treatments (1.9 t ha) the yield loss attributable to dry weather was 39%.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- N, NP, NK and NPKe0
- Outcome
- yield loss that could be attributed to dry weathere0
- Value
- 39 %e0
- Qualifier
- 1.9 t hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yields recorded in treatments with N, NP, NK and NPK (1.9 t ha) indicated that the yield loss that could be attributed to dry weather was 39 %”
t0“pea”
Claim · model-written summary
In drought, pea yield reduction relative to the average year was 43.3% in the N, NP and NK treatments versus 54% on control plots.
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- N, NP and NK treatmentse0
- Outcome
- pea yielde0
- Direction
- reducede0
- Value
- 43.3 %e0
- Qualifier
- In the case of droughte0
- Comparator
- control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the case of drought the pea yield on control plots was 54 % lower than in the average year, while this was reduced to 43.3 % in the N, NP and NK treatments and to 45.2 % in the NPK plots”
Claim · model-written summary
In drought, pea yield reduction relative to the average year was 45.2% in the NPK plots versus 54% on control plots.
- Taxon
- peaLathyrus oleraceuse0
- Treatment
- NPK plotse0
- Outcome
- pea yielde0
- Direction
- reducede0
- Value
- 45.2 %e0
- Qualifier
- In the case of droughte0
- Comparator
- control plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the case of drought the pea yield on control plots was 54 % lower than in the average year, while this was reduced to 43.3 % in the N, NP and NK treatments and to 45.2 % in the NPK plots”
Claim · model-written summary
In excessively wet years pea yield loss relative to average years was 41.7% on unfertilized plots.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- unfertilized plotse0
- Outcome
- yield lossese0
- Value
- 41.7 %e0
- Qualifier
- In excessively wet yearse0
- Comparator
- average yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In excessively wet years yield losses compared to the average years were 41.7 % on unfertilized plots, 25.7 % on N, NP and NK plots and 25.8 % on NPK plots”
t0“pea”
Claim · model-written summary
In excessively wet years pea yield loss relative to average years was 25.7% on N, NP and NK plots, lower than on unfertilized plots.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- N, NP and NK plotse0
- Outcome
- yield lossese0
- Direction
- lowerinferrede0
- Value
- 25.7 %e0
- Qualifier
- In excessively wet yearse0
- Comparator
- unfertilized plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In excessively wet years yield losses compared to the average years were 41.7 % on unfertilized plots, 25.7 % on N, NP and NK plots and 25.8 % on NPK plots”
t0“pea”
Claim · model-written summary
In excessively wet years pea yield loss relative to average years was 25.8% on NPK plots, lower than on unfertilized plots.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- NPK plotse0
- Outcome
- yield lossese0
- Direction
- lowerinferrede0
- Value
- 25.8 %e0
- Qualifier
- In excessively wet yearse0
- Comparator
- unfertilized plotse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In excessively wet years yield losses compared to the average years were 41.7 % on unfertilized plots, 25.7 % on N, NP and NK plots and 25.8 % on NPK plots”
t0“pea”
Claim · model-written summary
Fertilization counteracted 16% of the negative effect of excessive rainfall on pea yield.
- Taxon
- peaLathyrus oleraceust0
- Treatment
- fertilizatione0
- Outcome
- negative effect of excessive rainfalle0
- Direction
- counteracte0
- Value
- 16 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization was able to counteract 16 % of the negative effect of excessive rainfall”
t0“pea”
Claim · model-written summary
Pea yield could be described by quadratic functions of rainfall during the vegetation period for each nutrition level (N, NP, NK, NPK).
- Taxon
- peaLathyrus oleraceust0
- Treatment
- N, NP, NK and NPK nutritione0
- Outcome
- yielde0
- Qualifier
- quadratic functionse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The correlations is with rainfall during the vegetation period, N, NP, NK and NPK nutrition and the yield could be described using quadratic functions for each nutrition level”
t0“pea”
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