Linking root phenomics, nutrient acquisition and utilisation in amaranthus with thermochemical organic fertilizer from biowaste

Ramesha, G.; Leno, Naveen; Radhika, N S

doi:10.1016/j.rhisph.2021.100426

Cited by 4 publications

(1 citation statement)

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“…The root cause of continuous cropping obstacles may be that monoculture reduces crops and biological diversity, resulting in the degradation of the soil ecosystem, including vulnerability to erosion, weed invasion, an increase of soil-borne bacteria, soil acidification, and imbalance of soil microbial flora [8,9]. Rhizosphere soil is directly affected by plant roots, and its microbial composition is closely related to the transformation and utilization of soil nutrients, which directly affects crop growth [10]. Bacteria are the most abundant flora in soil microorganisms, and they play a vital role in water transport, organic matter decomposition, nutrient cycling, and maintaining sustainable soil productivity to promote Diversity 2022, 14, 250 2 of 12 plant growth [11,12].…”

Section: Introductionmentioning

confidence: 99%

Effects of Continuous Cropping on Bacterial Community and Diversity in Rhizosphere Soil of Industrial Hemp: A Five-Year Experiment

Guo

Chen

Li³

et al. 2022

Diversity

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Long-term continuous monoculture cultivation harms soil physicochemical and microbial communities in agricultural practices. However, little has been reported on the effect of continuous cropping of industrial hemp on bacterial community and diversity in the rhizosphere soil. Our study investigated the changes in physicochemical properties and bacterial communities of industrial hemp rhizosphere soils in different continuous cropping years. The results showed that continuous cropping would reduce soil pH and available phosphorus (AP), while electrical conductivity (EC), available nitrogen (AN), and available potassium (AK) would increase. Soil bacterial diversity and richness index decreased with continuous cropping years. At the same time, continuous cropping marked Acidobacteria, Bacteroidetes, and Gemmatimonadetes increase, and the Proteobacteria and Actinobacteria decreased. Moreover, we found that pH, AK, and AP were the critical factors associated with the changes in the abundance and structure of the bacterial community. Overall, our study first reported the effect of continuous cropping on the rhizosphere soil microflora of industrial hemp. The results can provide a theoretical basis for revealing the obstacle mechanism of continuous cropping of industrial hemp and contribute to the sustainable cultivation of industrial hemp in the future.

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