Effect of Treated Wastewater on the Growth and Yield of Two Sweet Corn Varieties: Impact of Doses and Systems of Irrigation

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Output type: Conference proceedings article

UM6P affiliated Publication?: Yes

Author list: Belabhir A., Mansir I., Bouchaou L., Otmani M.E., Yaacoubi B., Choukr-Allah R.

Publication year: 2021

Start page: 263

End page: 275

Number of pages: 13

ISSN: 2522-8714

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85111428894&doi=10.1007%2f978-3-030-67028-3_22&partnerID=40&md5=97fa2a83d73f79636e91896898822fb5

Languages: English (EN-GB)

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The limited availability of freshwater and succession of drought years and climate change have put the pressor to look for alternative water resources including treated wastewater, in order to meet the demands of agriculture in the Souss-Massa, Morocco. This study focuses on the use of treated wastewater for growing sweet corn under different systems and doses of irrigation. An open field experiment was carried out in the Agadir region using two sweet corn varieties: Prime-plus and SF681 and two irrigation systems subsurface drippers (SSD) and surface drippers (SD) also two irrigation doses regime 100 and 120% of the ETM determined using Lysimeters. The growth and yield components of sweet corn were improved by irrigation under surface dripper, using high dose of irrigation. However, the high accumulation of salts in the root zone under subsurface drip irrigation reduced the growth and yield of corn. Adding a leaching fraction of 20% of ETM, improve growth and yield of both sweet corn varieties. The highest yield was achieved by SF681 variety with 20 T/ha, under (SD) irrigated with 120% of ETM. Reducing water application by 20% decreases yield production up to 24.4% under (SD) and gave the same yield for both 100 and 120% of ETM under (SSD). Despite that (SSD) saves water, it increased soil salinity, even in sandy soil, due to the accumulation of salts in the root zone. Under treated wastewater irrigation, the sweet corn water consumption was 186 mm, allowing a saving of conventional water. Furthermore, it generated an economic gain in terms of fertilizers: 240 kg/ha of N and 60 kg/ha of CaO in addition to 10.38 kg/ha of P2O5 and 65.12 kg/ha of K2O in the case of 100% ETM and 12.45 kg/ha of P2O5 and 78.14 kg/ha of K2O in the case of 120% ETM. © 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.


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Last updated on 2021-29-11 at 23:16