Evaluation of the impact of fertilizers and seed quality on winter wheat yield

Marzena Iwańska; Zbigniew Laudański; Tadeusz Oleksiak

Biometrical Letters (2017)

  • Volume: 54, Issue: 1, page 61-76
  • ISSN: 1896-3811

Abstract

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The aim of the study was to evaluate the effect of mineral fertilization and seed quality on the yield of winter wheat in production conditions. This assessment is made in terms of the expected probabilities of success in relation to the yield of analyzed cultivars, taking into account the interaction of the factors considered. Analyses were performed on data from 3815 fields. The impact of fertilizers and seed quality was evaluated using logistic regression. Grain yield was transformed into a binomial variable, where values were divided into two classes, i.e. below the mean and above the mean. The results of the analysis proved a significant effect of fertilization rate, which was modified by different seed quality. The highest probability of obtaining yields above the mean was observed for pre-basic and basic seed quality at high fertilizer rates.

How to cite

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Marzena Iwańska, Zbigniew Laudański, and Tadeusz Oleksiak. "Evaluation of the impact of fertilizers and seed quality on winter wheat yield." Biometrical Letters 54.1 (2017): 61-76. <http://eudml.org/doc/288544>.

@article{MarzenaIwańska2017,
abstract = {The aim of the study was to evaluate the effect of mineral fertilization and seed quality on the yield of winter wheat in production conditions. This assessment is made in terms of the expected probabilities of success in relation to the yield of analyzed cultivars, taking into account the interaction of the factors considered. Analyses were performed on data from 3815 fields. The impact of fertilizers and seed quality was evaluated using logistic regression. Grain yield was transformed into a binomial variable, where values were divided into two classes, i.e. below the mean and above the mean. The results of the analysis proved a significant effect of fertilization rate, which was modified by different seed quality. The highest probability of obtaining yields above the mean was observed for pre-basic and basic seed quality at high fertilizer rates.},
author = {Marzena Iwańska, Zbigniew Laudański, Tadeusz Oleksiak},
journal = {Biometrical Letters},
keywords = {logistic regression; odds ratio; survey research; winter wheat},
language = {eng},
number = {1},
pages = {61-76},
title = {Evaluation of the impact of fertilizers and seed quality on winter wheat yield},
url = {http://eudml.org/doc/288544},
volume = {54},
year = {2017},
}

TY - JOUR
AU - Marzena Iwańska
AU - Zbigniew Laudański
AU - Tadeusz Oleksiak
TI - Evaluation of the impact of fertilizers and seed quality on winter wheat yield
JO - Biometrical Letters
PY - 2017
VL - 54
IS - 1
SP - 61
EP - 76
AB - The aim of the study was to evaluate the effect of mineral fertilization and seed quality on the yield of winter wheat in production conditions. This assessment is made in terms of the expected probabilities of success in relation to the yield of analyzed cultivars, taking into account the interaction of the factors considered. Analyses were performed on data from 3815 fields. The impact of fertilizers and seed quality was evaluated using logistic regression. Grain yield was transformed into a binomial variable, where values were divided into two classes, i.e. below the mean and above the mean. The results of the analysis proved a significant effect of fertilization rate, which was modified by different seed quality. The highest probability of obtaining yields above the mean was observed for pre-basic and basic seed quality at high fertilizer rates.
LA - eng
KW - logistic regression; odds ratio; survey research; winter wheat
UR - http://eudml.org/doc/288544
ER -

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