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160073

Response of Egyptian Cotton to Soil and Foliar Potassium Application Under Calcareous Soil Conditions

Article

Last updated: 23 Jan 2023

Subjects

-

Tags

Cotton production and technology

Abstract

Two field trials were conducted in a highly calcareous sandy clay loam soil at Nubaria Agric. Res. Station, Agric. Res. Center, Alexandria governorate, Egypt during 2012 and 2013 seasons to study the effect of some sources of potassium fertilizer, soil and foliar potassium application treatments on growth, earliness, yield and its components of Egyptian long staple cotton cultivar Giza 86 (Gossypium barbadense, L.). Potassium fertilizer was added according to the experimental treatments (source, rate, method and date of application). Potassium sulphate (48% K2O) was applied at the rate of 24 and 2.4 kg K2O/fed., for the soil and foliar applications, respectively. Potassium humate fertilizer (20% humic acid and 8% K2O) was applied at the rate of 2 and 1 L/fed., for the soil and foliar applications, respectively. Potassein fertilizer (30% K2O and 10% P2O5) was applied at the rate of 2 and 1 L/fed., for the soil and foliar applications, respectively. The soil applications after thinning in the form of potassium source. The experimental design was a split plot with four replications. The main plots involved the three sources of potassium fertilizer namely; A- Potassium sulphates, B- Potassium humate and C- Potassein. The sub main plots involved the five treatments of potassium application namely; 1- Soil application at thinning, 2- Soil application + foliar spraying two times (at initiation of flowering and two weeks after flowering), 3- Soil application + foliar spraying three time (at squaring, initiation of flowering and two weeks after flowering), 4- Foliar spraying two times ( at initiation of flowering and two weeks after flowering) and 5- Foliar spraying three times (at squaring, initiation of flowering and two weeks after flowering). The most important results obtained could be summarized as follows:
1)  The all sources of potassium had significant effects on all growth attributes in 2012 and 2013 seasons.
2)  The potassium humate fertilizer significantly decreased No. of days from sowing to the first flower appearance as well as, to the first opening boll, boll age and consequently, increased earliness percentage.
3)  The treatment of potassium humate produced the highest values for No. of opened bolls/plant, boll weight and seed cotton yield/plant and consequently, the highest seed cotton yield/fed., while, the sources of potassium fertilizer did not exhibit any significant effect on No. of plants/fed., at harvest in both seasons.
4)  The application times had significant effects on all growth attributes. The soil application with foliar application sprayed three times at squaring, start and peak of flowering stages, significantly, decreased days from sowing to the first flower appearance as well as, to the first opening boll and boll age, and increased earliness % compared to the other potassium application treatments, and significantly increased No. of opened bolls/plant, boll weight, seed cotton yield/plant and consequently seed cotton yield/fed. in both seasons.

DOI

10.21608/jalexu.2014.160073

Keywords

Cotton, potassium sources, Potassein, fertilization, earliness, Growth, yield, Calcareous Soils

Authors

First Name

Mahmoud

Last Name

Gomaa

MiddleName

-

Affiliation

Plant Production Dept., Fac. of Agric., (Saba Basha), Alexandria Univ., Alexandria, Egypt.

Email

mohmoud.gomaa@gmail.com

City

-

Orcid

-

First Name

Ibrahim

Last Name

Fathallah Rehab

MiddleName

-

Affiliation

Faculty of Agriculture saba basha, Alexandria University

Email

ifr1281@yahoo.com

City

Alexandria

Orcid

-

First Name

Ibrahim

Last Name

Ibrahim

MiddleName

Abass

Affiliation

Plant Production Dept., Fac. of Agric., (Saba Basha), Alexandria Univ., Alexandria, Egypt.

Email

-

City

-

Orcid

-

First Name

Mostafa

Last Name

Emara

MiddleName

-

Affiliation

Agronomy Dept., Cotton Res. Inst., Agric. Res. Center, Giza, Egypt

Email

mostafacotton@yahoo.com

City

-

Orcid

-

First Name

Abdelazem

Last Name

Kattosh

MiddleName

-

Affiliation

Agronomy Dept., Cotton Res. Inst., Agric. Res. Center, Giza, Egypt

Email

a.kattosh@yahoo.com

City

-

Orcid

-

Volume

19

Article Issue

2

Related Issue

23484

Issue Date

2014-06-01

Receive Date

2014-04-13

Publish Date

2014-06-01

Page Start

236

Page End

246

Print ISSN

1110-5585

Online ISSN

2785-9525

Link

https://jalexu.journals.ekb.eg/article_160073.html

Detail API

https://jalexu.journals.ekb.eg/service?article_code=160073

Order

2

Type

Research papers

Type Code

1,789

Publication Type

Journal

Publication Title

Journal of the Advances in Agricultural Researches

Publication Link

https://jalexu.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

23 Jan 2023