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155462

EFFECT OF K-SOURCES IN COMBINATION WITH GIBBERELLIC ACID ON MAIZE PRODUCTION UNDER WATER STRESS IN SANDY SOIL

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Last updated: 04 Jan 2025

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Abstract

A field experiment was conducted along the two successive summer seasons of 2019 and 2020 under sandy soil conditions at Ismailia Agricultural Research Station. This study aim to evaluate the effect of K sources i.e. K-silicate and K- humate, combined with gibberellic acid application under different irrigation levels on yield characters and NPK uptake by maize plant (Zea maize L.). The experimental treatments were arranged in a split –split plot design as follows: (1) three irrigation levels were assigned as main plots i.e.100% (I1) 80 %(I2) and 60 %(I3)of maizeevapotranspiration (ETc), (2) three treatments of K-source as foliar application were arranged as sub plot i.e. 0, K-humate at rate of 4 g L-1 and K-silicate at rate of 150 mg L-1 Si (3) three application rates of gibberellic acid 0 (G0), 100 (G1) and 150 (G2) mg L-1were arranged as sub-sub plots. The obtained results indicated that the heist values of grain yield, straw yield and NPK- uptake by plant were recorded at treatment of I2*Khumate*GA1. Soil content of available N was significantly increased with the foliar spraying of the K-silicate, K-humate and the different levels of gibberellic acid, but not significantly affected by irrigation levels. Soil available P was not significantly affected by different treatments while, soil available K was significantly affected by irrigation level, K-silicate and K-humate but not significantly affected by the different levels of Gibberellic acid.

DOI

10.21608/mjss.2021.155462

Keywords

Maize, irrigation level, K-humate, K-silicate, and Gibrillic acid

Authors

First Name

Y. M. EL-

Last Name

Edfawy

MiddleName

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Affiliation

Soil, Water and Environment Research Institute, Agric., Res. Center, Giza, Egypt.

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Orcid

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First Name

S.

Last Name

Mohamed

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Affiliation

Soil, Water and Environment Research Institute, Agric., Res. Center, Giza, Egypt.

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Orcid

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First Name

E.M.

Last Name

Aly

MiddleName

-

Affiliation

Soil, Water and Environment Research Institute, Agric., Res. Center, Giza, Egypt.

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Volume

6

Article Issue

1

Related Issue

22873

Issue Date

2021-02-01

Receive Date

2021-03-10

Publish Date

2021-02-01

Page Start

1

Page End

17

Print ISSN

2357-0822

Online ISSN

2735-3524

Article File

MJSS_Volume 6_Issue 1_Pages 1-17.pdf

PDF . 414.5kB

Link

https://mjss.journals.ekb.eg/article_155462.html

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https://mjss.journals.ekb.eg/service?article_code=155462

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original papers

Type Code

1,403

Publication Type

Journal

Publication Title

Menoufia Journal of Soil Science

Publication Link

https://mjss.journals.ekb.eg/

MainTitle

EFFECT OF K-SOURCES IN COMBINATION WITH GIBBERELLIC ACID ON MAIZE PRODUCTION UNDER WATER STRESS IN SANDY SOIL

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Article

Created At

23 Jan 2023