Sewage sludge and NPK Application to enhance growth, yield and quality of kale and spinach crops

Sabia Zafar; Sameer Farooq; Insha Khursheed; Khalid Hussain; Hilal Ahmad Qazi; Tasadoq Hussain Jaweed; Farooq Ahmad Lone

doi:10.5897/JSSEM2021.0866

Journal of
Soil Science and Environmental Management

Abbreviation: J. Soil Sci. Environ. Manage.
Language: English
ISSN: 2141-2391
DOI: 10.5897/JSSEM
Start Year: 2010
Published Articles: 314

Full Length Research Paper

Sewage sludge and NPK Application to enhance growth, yield and quality of kale and spinach crops

Sabia Zafar

Sabia Zafar
Division of Environmental Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir-India.
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Sameer Farooq

Sameer Farooq
Division of Environmental Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir-India.
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Insha Khursheed

Insha Khursheed
School of Biosciences and Biotechnology, Lovely Professional University, India.
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Khalid Hussain

Khalid Hussain
Centre for Biodiversity and plant taxonomy, Department of Botany, University of Kashmir-India.
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Hilal Ahmad Qazi

Hilal Ahmad Qazi
Department of Botany, University of Kashmir-India.
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Tasadoq Hussain Jaweed

Tasadoq Hussain Jaweed
Department of Botany, University of Kashmir-India.
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Farooq Ahmad Lone

Farooq Ahmad Lone
Division of Environmental Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir-India.
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Article Number - D3A30C167862
Vol.12(4), pp. 132-142 , October 2021
https://doi.org/10.5897/JSSEM2021.0866

Received: 24 January 2021
Accepted: 20 July 2021
Published: 31 October 2021

Abstract

Sewage sludge is considered as a valuable supplement because of its high organic matter, macro and micro nutrients. Its application has been studied in combination with recommended fertilizer dose (NPK is combination of N, P and K) for crops, viz. Kale and Spinach. The experiment comprised nine treatments (T₁=0%SS+0%NPK as Control, T₂=25%SS+0%NPK, T₃=50%SS+0%NPK, T₄=75%SS+0%NPK, T₅=100%SS+0%NPK, T₆=25%SS+75%NPK, T₇=50%SS+50%NPK, T₈=75%SS+25%NPK and T₉=0%SS+100%NPK) which were laid in a completely randomized manner with triplicates. The study revealed that morphological characters, viz. root length per plant, shoot length per plant, root fresh and dry biomass, leaf area index and weight of edible part were significantly higher in T₉ (0%SS+100%NPK) in both kale and spinach. Similarly, leaf area was significantly higher in T₈ (75%SS+25% NPK) treatment in both kale and spinach. The various parameters related to plant quality like ascorbic acid, carbohydrate content and protein content were significantly higher with application of 75% Sewage sludge+25%NPK and hence improve growth, yield and quality of kale and spinach.