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Efficiency of Inorganic and Organic Nitrogen Fertilization on Cauliflower (Brassica oleraceae var. botrytis, L.) Curds Quality

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Last updated: 01 Jan 2025

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Abstract

Two experiments were established at the Experimental Station Farm, Faculty of Agriculture, Alexandria University in two winter seasons of 2006/2007 and 2007/2008 to evaluate the effects of application three levels of inorganic N fertilizer (40, 80 and 120 kg N fad.-1 as ammonium nitrate) and control treatment (without addition, soil N), three rates of chicken manure (5, 10 and 15 m3 fad.-1) in addition to control treatment (without application chicken manure) as well as their interactions effect on curd quality of cauliflower "Amshiry" cultivar.  
The results showed positive effects of using either inorganic or organic N fertilizers on cauliflower curds quality characters. The inorganic N form was more effective in the presence than in absence of organic fertilizer concerning curds quality. The application of high level of inorganic N fertilizer (120 kg N fad.-1), significantly, increased curd weight, phenolic compounds, concentrations of Ca and Mg of curds, and significantly decreased inflorescence stalks length of cauliflower curds. However, both medium and high levels of inorganic N form (80 and 120 kg N fad.-1) augmented curd diameter, dry matter content, protein nitrogen, true protein, non protein nitrogen as well as concentrations of some macro and micro-nutrient (N, P, K, Na and Zn) of curds compared with other treatments. Chicken manure at the highest rate (15 m3 fad.-1) reflected clear superior in all curds quality characters under consideration. Positive changes in all studied parameters viz. curd quality characteristics and nutritional value were obtained in response to the collaborative effect of both inorganic and organic N fertilization. The results of the current study indicated that combination of inorganic N level (80 kg N fad.-1 as NH4NO3) with chicken manure rate (15 m3 fad.-1; i.e., 72 kg N fad.-1) gave the superior curd quality characteristics with high nutritional values for cauliflower "Amshiry" cultivar under the study region conditions.   

DOI

10.21608/asejaiqjsae.2008.3210

Keywords

Key words: Cauliflower, chicken manure, curd quality, N fertilizer, nitrate content, Phenolic compounds

Authors

First Name

Abdel-Razzak

Last Name

H. S.

MiddleName

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Affiliation

Vegetable Crops Dept., Fac. Agriculture, Alexandria Univ., Egypt

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Orcid

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First Name

T. H.

Last Name

Gamel

MiddleName

-

Affiliation

Food Science & Technology Dept., Fac. Agriculture, Alexandria Univ., Egypt

Email

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City

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Orcid

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First Name

A. B.

Last Name

El-Nasharty

MiddleName

-

Affiliation

Fertilization Technology Dept., National Research Centre,Dokki, Cairo, Egypt

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Orcid

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Volume

29

Article Issue

October-December

Related Issue

558

Issue Date

2008-10-01

Receive Date

2008-12-21

Publish Date

2008-12-30

Page Start

283

Page End

297

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 29_Issue October-December_Pages 283-297.pdf

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https://asejaiqjsae.journals.ekb.eg/article_3210.html

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https://asejaiqjsae.journals.ekb.eg/service?article_code=3210

Order

11

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Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

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

MainTitle

Efficiency of Inorganic and Organic Nitrogen Fertilization on Cauliflower (Brassica oleraceae var. botrytis, L.) Curds Quality

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Article

Created At

22 Jan 2023