Comparisons between an Upland and a Pima cotton cultivar: II. Nutrient uptake and partitioning

Bryan L. Unruh, Jeffrey Silvertooth

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Uptake and partitioning of N, P, and K by Upland cotton (Gossypium hirsutum L.) have been studied, but no such work has included American Pima cotton (G. barbadense L.). Our objective was to describe the N, P, and K uptake and partitioning into various plant parts for two representative Upland and Pima cotton cultivars. Upland 'Deltapine 90' (DPL 90) and Pima 'S- 6' were grown at two south-central Arizona locations for 3 yr. Beginning 14 to 20 d after emergence, the aboveground portions of cotton plants were harvested and separated into stems, leaves (including petioles), burs (carpel walls), lint, and seeds. The bur fraction also included squares, flowers, immature bolls, and burs from mature bolls. Total N, P, and K analyses were conducted on each fraction (except lint). Nutrient concentration, uptake, and partitioning by cotton was modeled on a heat unit accumulation basis (HUAP). Up to about 1500 HUAP, leaves were major N sinks, leaves and the bur fraction were major P sinks, and leaves and stems were major K sinks for both cultivars. After 1500 HUAP, the bur fraction and seeds were major N and P sinks and the bur fraction was the major K sink. For DPL 90, the total N, P, and K uptake was 201, 31, and 254 kg ha-1 and for Pima S-6, it was 201, 32, and 226 kg ha-1, respectively. Nutrient requirements for producing 100 kg lint ha-1 were 15-2.3-19 kg ha-1 N-P-K for Upland cotton and 21-3.3-23 kg ha-1 for Pima cotton.

Original languageEnglish (US)
Pages (from-to)589-595
Number of pages7
JournalAgronomy Journal
Volume88
Issue number4
StatePublished - Jul 1996

Fingerprint

nutrient partitioning
nutrient uptake
lint cotton
highlands
cotton
Gossypium hirsutum
uptake mechanisms
Gossypium barbadense
bolls
cultivars
leaves
stems
carpels
petioles
seeds
nutrient requirements
plant anatomy
nutrient content
immatures
flowers

ASJC Scopus subject areas

  • Agronomy and Crop Science

Cite this

Comparisons between an Upland and a Pima cotton cultivar : II. Nutrient uptake and partitioning. / Unruh, Bryan L.; Silvertooth, Jeffrey.

In: Agronomy Journal, Vol. 88, No. 4, 07.1996, p. 589-595.

Research output: Contribution to journalArticle

@article{ef4ec2886dce4c9db85313922290fb75,
title = "Comparisons between an Upland and a Pima cotton cultivar: II. Nutrient uptake and partitioning",
abstract = "Uptake and partitioning of N, P, and K by Upland cotton (Gossypium hirsutum L.) have been studied, but no such work has included American Pima cotton (G. barbadense L.). Our objective was to describe the N, P, and K uptake and partitioning into various plant parts for two representative Upland and Pima cotton cultivars. Upland 'Deltapine 90' (DPL 90) and Pima 'S- 6' were grown at two south-central Arizona locations for 3 yr. Beginning 14 to 20 d after emergence, the aboveground portions of cotton plants were harvested and separated into stems, leaves (including petioles), burs (carpel walls), lint, and seeds. The bur fraction also included squares, flowers, immature bolls, and burs from mature bolls. Total N, P, and K analyses were conducted on each fraction (except lint). Nutrient concentration, uptake, and partitioning by cotton was modeled on a heat unit accumulation basis (HUAP). Up to about 1500 HUAP, leaves were major N sinks, leaves and the bur fraction were major P sinks, and leaves and stems were major K sinks for both cultivars. After 1500 HUAP, the bur fraction and seeds were major N and P sinks and the bur fraction was the major K sink. For DPL 90, the total N, P, and K uptake was 201, 31, and 254 kg ha-1 and for Pima S-6, it was 201, 32, and 226 kg ha-1, respectively. Nutrient requirements for producing 100 kg lint ha-1 were 15-2.3-19 kg ha-1 N-P-K for Upland cotton and 21-3.3-23 kg ha-1 for Pima cotton.",
author = "Unruh, {Bryan L.} and Jeffrey Silvertooth",
year = "1996",
month = "7",
language = "English (US)",
volume = "88",
pages = "589--595",
journal = "Agronomy Journal",
issn = "0002-1962",
publisher = "American Society of Agronomy",
number = "4",

}

TY - JOUR

T1 - Comparisons between an Upland and a Pima cotton cultivar

T2 - II. Nutrient uptake and partitioning

AU - Unruh, Bryan L.

AU - Silvertooth, Jeffrey

PY - 1996/7

Y1 - 1996/7

N2 - Uptake and partitioning of N, P, and K by Upland cotton (Gossypium hirsutum L.) have been studied, but no such work has included American Pima cotton (G. barbadense L.). Our objective was to describe the N, P, and K uptake and partitioning into various plant parts for two representative Upland and Pima cotton cultivars. Upland 'Deltapine 90' (DPL 90) and Pima 'S- 6' were grown at two south-central Arizona locations for 3 yr. Beginning 14 to 20 d after emergence, the aboveground portions of cotton plants were harvested and separated into stems, leaves (including petioles), burs (carpel walls), lint, and seeds. The bur fraction also included squares, flowers, immature bolls, and burs from mature bolls. Total N, P, and K analyses were conducted on each fraction (except lint). Nutrient concentration, uptake, and partitioning by cotton was modeled on a heat unit accumulation basis (HUAP). Up to about 1500 HUAP, leaves were major N sinks, leaves and the bur fraction were major P sinks, and leaves and stems were major K sinks for both cultivars. After 1500 HUAP, the bur fraction and seeds were major N and P sinks and the bur fraction was the major K sink. For DPL 90, the total N, P, and K uptake was 201, 31, and 254 kg ha-1 and for Pima S-6, it was 201, 32, and 226 kg ha-1, respectively. Nutrient requirements for producing 100 kg lint ha-1 were 15-2.3-19 kg ha-1 N-P-K for Upland cotton and 21-3.3-23 kg ha-1 for Pima cotton.

AB - Uptake and partitioning of N, P, and K by Upland cotton (Gossypium hirsutum L.) have been studied, but no such work has included American Pima cotton (G. barbadense L.). Our objective was to describe the N, P, and K uptake and partitioning into various plant parts for two representative Upland and Pima cotton cultivars. Upland 'Deltapine 90' (DPL 90) and Pima 'S- 6' were grown at two south-central Arizona locations for 3 yr. Beginning 14 to 20 d after emergence, the aboveground portions of cotton plants were harvested and separated into stems, leaves (including petioles), burs (carpel walls), lint, and seeds. The bur fraction also included squares, flowers, immature bolls, and burs from mature bolls. Total N, P, and K analyses were conducted on each fraction (except lint). Nutrient concentration, uptake, and partitioning by cotton was modeled on a heat unit accumulation basis (HUAP). Up to about 1500 HUAP, leaves were major N sinks, leaves and the bur fraction were major P sinks, and leaves and stems were major K sinks for both cultivars. After 1500 HUAP, the bur fraction and seeds were major N and P sinks and the bur fraction was the major K sink. For DPL 90, the total N, P, and K uptake was 201, 31, and 254 kg ha-1 and for Pima S-6, it was 201, 32, and 226 kg ha-1, respectively. Nutrient requirements for producing 100 kg lint ha-1 were 15-2.3-19 kg ha-1 N-P-K for Upland cotton and 21-3.3-23 kg ha-1 for Pima cotton.

UR - http://www.scopus.com/inward/record.url?scp=0029808135&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029808135&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0029808135

VL - 88

SP - 589

EP - 595

JO - Agronomy Journal

JF - Agronomy Journal

SN - 0002-1962

IS - 4

ER -