Rice-based integrated farming system improves the soil quality, bacterial community structure and system productivity under sub-humid tropical condition.

Autor: Nayak PK; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India. nayakpra@yahoo.com., Nayak AK; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India., Panda BB; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India., Senapati A; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India., Panneerselvam P; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India., Kumar A; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India., Tripathi R; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India., Poonam A; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India., Shahid M; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India., Mohapatra SD; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India., Kaviraj M; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India., Kumar U; ICAR-National Rice Research Institute, Cuttack, Odisha, 753006, India. ukumarmb@gmail.com.
Jazyk: angličtina
Zdroj: Environmental geochemistry and health [Environ Geochem Health] 2024 Feb 07; Vol. 46 (2), pp. 65. Date of Electronic Publication: 2024 Feb 07.
DOI: 10.1007/s10653-024-01863-1
Abstrakt: Rice-based integrated farming system improves the productivity and profitability by recycling resources efficiently. In the sub-humid tropics, rice production without sufficient nutrient replenishment often leads to soil health and fertility degradation. There has been very limited research on soil health and fertility after adopting a multi-enterprising rice-based integrated farming system (IFS), notably in the rice-fish-livestock and agroforestry system, when compared to a conventional farming system (CS). Therefore, the present study analyzed the dynamics of soil properties, soil bacterial community structure and their possible interaction mechanisms, as well as their effect on regulating soil quality and production in IFS, IFSw (water stagnant area of IFS) and CS. The results indicated that soil nutrient dynamics, bacterial diversity indices (Shannon index, Simpson index, Chao 1, ACE and Fisher index) and system productivity were higher in IFSw and IFS compared to CS. Moreover, relative operational taxonomic units of dominant bacterial genera (Chloroflexi, Acidobacteria, Verrucomicrobia, Planctomycetes, Cyanobacteria, Crenarchaeota and Gemmatimonadetes) were also higher in IFSw and IFS compared to CS. Mean soil quality index (SQI) was highest in IFSw (0.780 ± 0.201) followed by IFS (0.770 ± 0.080) and CS (0.595 ± 0.244). Moreover, rice equivalent yields (REY) and rice yields were well correlated with the higher levels of soil biological indices (SQI Biol ) in IFS. Overall, our results revealed that rice-based IFS improved the soil health and fertility and ensuing crop productivity through positive interaction with soil bacterial communities and nutrient stoichiometry leading to agroecosystem sustainability.
(© 2024. The Author(s), under exclusive licence to Springer Nature B.V.)
Databáze: MEDLINE
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