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: 304

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.
  • Google Scholar
Sameer Farooq
  • Sameer Farooq
  • Division of Environmental Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir-India.
  • Google Scholar
Insha Khursheed
  • Insha Khursheed
  • School of Biosciences and Biotechnology, Lovely Professional University, India.
  • Google Scholar
Khalid Hussain
  • Khalid Hussain
  • Centre for Biodiversity and plant taxonomy, Department of Botany, University of Kashmir-India.
  • Google Scholar
Hilal Ahmad Qazi
  • Hilal Ahmad Qazi
  • Department of Botany, University of Kashmir-India.
  • Google Scholar
Tasadoq Hussain Jaweed
  • Tasadoq Hussain Jaweed
  • Department of Botany, University of Kashmir-India.
  • Google Scholar
Farooq Ahmad Lone
  • Farooq Ahmad Lone
  • Division of Environmental Sciences, Sher-e-Kashmir University of Agricultural Sciences and Technology of Kashmir-India.
  • Google Scholar


  •  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.

Key words: Sewage sludge, NPK, growth, yield, quality, kale, spinach.