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151650

Response of Canola Plant (brassica napus l.) To Reducing Nitrogen Fertilizer Rates by Adding Humic Substance

Article

Last updated: 01 Jan 2025

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Tags

Horticulture

Abstract

Two field experiments were carried out at Itay El-Baroud Agricultural Research Station Farm – El Behira Governorate- Egypt during two successive winter seasons of 2016 /2017 and 2017/2018 to investigate the possibility of reducing nitrogen fertilizer rates by adding humic substance (Actosol®) and their effects on growth, yield, yield components and some chemical properties of Serow 4 canola variety plants. The studied treatments consisted of seven different doses of recommended nitrogen (30 kg N / fed) with or without Actosol (6 liters / fed) as follows: 50 % nitrogen without Actosol (50 % N-Act.), 75 % nitrogen without Actosol (75 % N-Act.), 100 % nitrogen without Actosol (100 % N-Act.), zero nitrogen with Actosol (0 % N+Act.), 50 % nitrogen with Actosol (50 % N+Act.), 75 % nitrogen with Actosol (75 % N+Act.), and 100 % nitrogen with Actosol (100 % N+Act.). The experimental design was randomized complete block with three replicates. Results showed that decreasing nitrogen rates with or without humic substance (Actosol) linearly decreased plant height, number of branches and fruits/plant, 1000-seed weight, seed yield/plant, seed yield/fed and seed oil yield/fed, while it had increased, but non-significantly, seed oil content. However, application of Actosol increased all characters, except seed oil content where it had no significant effect on that trait at all studied nitrogen rates.  Treatment of (75 % N+Act.) was better than (100 % N-Act.) for most studied characters. Therefore, nitrogen fertilization rate can be reduced by about 25% of the recommended by adding the recommended dose of Actosol (6 liters / fed).

DOI

10.21608/asejaiqjsae.2021.151650

Keywords

Nitrogen fertilization, humic substance, actosol, canola, seed oil content

Authors

First Name

Khamis A.

Last Name

Mourad

MiddleName

-

Affiliation

Oil Crops Dept., field Crops Res. Inst., Agric. Res.Center, Giza, Egypt

Email

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City

-

Orcid

-

First Name

Elsayed A. A.

Last Name

Abdelraouf

MiddleName

-

Affiliation

Nat. Resources & Agri. Eng. Dep., Fac. Agric., Damanhur Univ., Egypt.

Email

-

City

-

Orcid

-

First Name

Saad A.

Last Name

Elshall

MiddleName

-

Affiliation

Horticulture Research Institute. Agric. Res. Center, Giza, Egypt.

Email

-

City

-

Orcid

-

Volume

42

Article Issue

JANUARY- MARCH

Related Issue

20854

Issue Date

2021-01-01

Receive Date

2021-01-21

Publish Date

2021-03-30

Page Start

79

Page End

88

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 42_Issue JANUARY- MARCH_Pages 79-88.pdf

PDF . 394.9kB

Link

https://asejaiqjsae.journals.ekb.eg/article_151650.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=151650

Order

8

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Response of Canola Plant (brassica napus l.) To Reducing Nitrogen Fertilizer Rates by Adding Humic Substance

Details

Type

Article

Created At

22 Jan 2023