Microbial and enzymatic activity as influenced by existing cropping pattern in the soils of Ganges floodplain

Mohammad Zaber Hossain, Rezaul Karim, Falguni Akhter, Bina Rani Majumder

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Effect of multi cropping (Potato-Jute-Sweetgourd-T.Aman, Sweet gourd Brinjal-Jute, Cauliflower-Radish-Lentil-Basil, Jute-Lentil-Mustard-Wheat and Sweetgourd-Turnip, designated as P-J-S-T, S-B-J, C-R-L-B, J-L-M-W and S-T, respectively) and mono cropping systems (orchard of Lychee, Teak, Turmeric and Banana) on microbial and enzymatic activity of Ganges floodplain soil was investigated. Organic carbon, microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), soil respiration, total nitrogen and urease activity (UA) of the soils were examined. Upon examination it was observed that soils under mono cropping pattern (Lychee, Teak, and Banana) showed significantly (p≤0.05) higher MBC, MBN and UA than those under multi cropping pattern. Highest values of MBC and UA found in teak plant were 95.44 milligram/kilogram (mgkg-1) and 6.51μg N released g-1day-1 respectively while for multi cropping pattern the respective values were 37.52 mgkg-1 and 2.23 μg N released g-1day-1 found in S-T and J-L-M-W cropping pattern. The highest MBN (12.70 mgkg-1) was obtained in soil where lychee was practiced. Multi cropping soil showed significantly (p≤0.05) higher respiration rate than mono cropping soil and the highest rate was found 508.75 mg CO2 g-1day-1 in J-M-LW cropping pattern. Turmeric showed the lowest respiration rate (120.75 mg CO2 g-1day-1) among the cropping pattern studied. Both MBC and UA showed positively significant relation with soil organic carbon, and total N at 0.01 % level. High microbial and enzymatic activity of mono cropping soil represent combined effect of vegetation and low tillage practices in soil.
Original languageEnglish
Article number3
JournalPlant Science Today
Volume6
Issue number3
Pages (from-to)309-314
Number of pages6
ISSN2348-1900
DOIs
Publication statusPublished - 17 Jul 2019
Externally publishedYes
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 4112 Forestry
  • 4111 Agronomy

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