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Crop Yield and Nitrogen Bioavailability Mediated by Nitrogen Fertilization in Maize/Soybean Intercropping System with and without Rhizobium Inoculation

Article

Last updated: 01 Jan 2025

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Subjects

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Tags

Soil Fertility & plant nutrition

Abstract

Two plots experiments were conducted at the Soil Salinity and Alkalinity Laboratory at Alexandria, Egypt, to study the beneficial effects of nitrogen supply from soybean intercropped with maize on available nitrogen in soil, nitrogen uptake, and yield of maize. The results indicated that the highest grain yield of maize              (5581 kg.ha-1) was achieved in maize+soybean intercropping under the entired recommended rate (RR) of mineral nitrogen application (120 units of N as urea), and the lowest (2280 kg.ha-1) was achieved in maize+soybean intercropping in absence of mineral nitrogen application. Application of rhizobium to maize+soybean intercropping system significantly increased maize grain and above-ground biomass yields. On average of two years, maize grain of maize+soybean intercropping overyielded the sole maize by 58% (ranging from 0.9% to 99.96%). Total land equivalent ratio (TLER), averaged over N levels, was 2.30 in maize+soybean, and 2.67 in soybean + maize intercropping with rhizobium over the 2 years of the study. The combination of mineral and rhizobium in maize+soybean intercropping system showed the highest values of N concentrations in plant tissues compared with mineral or rhizobium plots individually. Also, there were significant positive relationships between N uptake and maize grain yield in the first season [r= 0.99, 0.99, 0.90, 0.90, and 0.86 for maize, soybean, maize + soybean intercropping, soybean + rhizobium, and maize + soybean + rhizobium, respectively]. Although, the intercropped maize and soybean plus rhizobium at 50% of RR of N fertilizer was not yielded the highest corn grain, it is recommended that to be the best economic treatment. 

DOI

10.21608/asejaiqjsae.2014.2586

Keywords

intercropping system, Nitrogen uptake, Nitrogen Availability, Maize/Soybean, Rhizobium

Authors

First Name

Nieven

Last Name

O. Fathi

MiddleName

-

Affiliation

Salinity and Alkalinity Soils Research Laboratory, Agriculture Research Center, Alexandria, Ministry of Agriculture, (Egypt)

Email

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City

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Orcid

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Volume

35

Article Issue

April-June

Related Issue

376

Issue Date

2014-04-01

Receive Date

2014-05-12

Publish Date

2014-06-30

Page Start

115

Page End

125

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 35_Issue April-June_Pages 115-125.pdf

PDF . 211.6kB

Link

https://asejaiqjsae.journals.ekb.eg/article_2586.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=2586

Order

7

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

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

MainTitle

Crop Yield and Nitrogen Bioavailability Mediated by Nitrogen Fertilization in Maize/Soybean Intercropping System with and without Rhizobium Inoculation

Details

Type

Article

Created At

22 Jan 2023