Yield and Economic Response of Modern Cotton Cultivars to Nitrogen Fertilizer

Non-optimal application of nitrogen (N) fertilizer in cotton (<i>Gossypium hirsutum</i> L.) production systems often results from a producer’s uncertainty in predicting the N rate that ensures maximum economic return. Residual soil nitrate-N (NO<sub>3</sub>-N) is also often u...

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Autores principales:	Irish Lorraine B. Pabuayon, Donna Mitchell-McCallister, Katie L. Lewis, Glen L. Ritchie
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	cotton residual nitrogen yield response simulation Agriculture S
Acceso en línea:	https://doaj.org/article/bfa0d1a558e3438fbd7997f8cfa62fd5
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spelling	oai:doaj.org-article:bfa0d1a558e3438fbd7997f8cfa62fd52021-11-25T16:04:24ZYield and Economic Response of Modern Cotton Cultivars to Nitrogen Fertilizer10.3390/agronomy111121492073-4395https://doaj.org/article/bfa0d1a558e3438fbd7997f8cfa62fd52021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4395/11/11/2149https://doaj.org/toc/2073-4395Non-optimal application of nitrogen (N) fertilizer in cotton (<i>Gossypium hirsutum</i> L.) production systems often results from a producer’s uncertainty in predicting the N rate that ensures maximum economic return. Residual soil nitrate-N (NO<sub>3</sub>-N) is also often unaccounted for in fertilizer management decisions. In this study, the lint yield and profitability of two cotton cultivars (FiberMax FM 958 and Deltapine DP 1646 B2XF) were compared across five N fertilizer treatments [0 kg ha<sup>−1</sup> (control), 45 kg ha<sup>−1</sup> (N-45), 90 kg ha<sup>−1</sup> (N-90), 135 kg ha<sup>−1</sup> (N-135), 180 kg ha<sup>−1</sup> (N-180)] from 2018 to 2020. For both cultivars, additional N fertilizer on top of the control treatment did not increase the lint yield of cotton. For each year, both control and N-45 treatments resulted in the greatest revenue above variable costs (RAVC) values for all cultivars. The improved N partitioning efficiency in newer cultivars and the high levels of residual soil NO<sub>3</sub>-N allowed sustained plant growth and yield even with reduced N application. Overall, the results show the advantage of reducing N inputs in residual N-rich soils to maintain yield and increase profits. These findings are important in promoting more sustainable agricultural systems through reduced chemical inputs and maintained soil health.Irish Lorraine B. PabuayonDonna Mitchell-McCallisterKatie L. LewisGlen L. RitchieMDPI AGarticlecottonresidual nitrogenyield responsesimulationAgricultureSENAgronomy, Vol 11, Iss 2149, p 2149 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	cotton residual nitrogen yield response simulation Agriculture S
spellingShingle	cotton residual nitrogen yield response simulation Agriculture S Irish Lorraine B. Pabuayon Donna Mitchell-McCallister Katie L. Lewis Glen L. Ritchie Yield and Economic Response of Modern Cotton Cultivars to Nitrogen Fertilizer
description	Non-optimal application of nitrogen (N) fertilizer in cotton (<i>Gossypium hirsutum</i> L.) production systems often results from a producer’s uncertainty in predicting the N rate that ensures maximum economic return. Residual soil nitrate-N (NO<sub>3</sub>-N) is also often unaccounted for in fertilizer management decisions. In this study, the lint yield and profitability of two cotton cultivars (FiberMax FM 958 and Deltapine DP 1646 B2XF) were compared across five N fertilizer treatments [0 kg ha<sup>−1</sup> (control), 45 kg ha<sup>−1</sup> (N-45), 90 kg ha<sup>−1</sup> (N-90), 135 kg ha<sup>−1</sup> (N-135), 180 kg ha<sup>−1</sup> (N-180)] from 2018 to 2020. For both cultivars, additional N fertilizer on top of the control treatment did not increase the lint yield of cotton. For each year, both control and N-45 treatments resulted in the greatest revenue above variable costs (RAVC) values for all cultivars. The improved N partitioning efficiency in newer cultivars and the high levels of residual soil NO<sub>3</sub>-N allowed sustained plant growth and yield even with reduced N application. Overall, the results show the advantage of reducing N inputs in residual N-rich soils to maintain yield and increase profits. These findings are important in promoting more sustainable agricultural systems through reduced chemical inputs and maintained soil health.
format	article
author	Irish Lorraine B. Pabuayon Donna Mitchell-McCallister Katie L. Lewis Glen L. Ritchie
author_facet	Irish Lorraine B. Pabuayon Donna Mitchell-McCallister Katie L. Lewis Glen L. Ritchie
author_sort	Irish Lorraine B. Pabuayon
title	Yield and Economic Response of Modern Cotton Cultivars to Nitrogen Fertilizer
title_short	Yield and Economic Response of Modern Cotton Cultivars to Nitrogen Fertilizer
title_full	Yield and Economic Response of Modern Cotton Cultivars to Nitrogen Fertilizer
title_fullStr	Yield and Economic Response of Modern Cotton Cultivars to Nitrogen Fertilizer
title_full_unstemmed	Yield and Economic Response of Modern Cotton Cultivars to Nitrogen Fertilizer
title_sort	yield and economic response of modern cotton cultivars to nitrogen fertilizer
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/bfa0d1a558e3438fbd7997f8cfa62fd5
work_keys_str_mv	AT irishlorrainebpabuayon yieldandeconomicresponseofmoderncottoncultivarstonitrogenfertilizer AT donnamitchellmccallister yieldandeconomicresponseofmoderncottoncultivarstonitrogenfertilizer AT katiellewis yieldandeconomicresponseofmoderncottoncultivarstonitrogenfertilizer AT glenlritchie yieldandeconomicresponseofmoderncottoncultivarstonitrogenfertilizer
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Yield and Economic Response of Modern Cotton Cultivars to Nitrogen Fertilizer

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