Microbial communities and their characteristics in a soil amended by nanozeolite and some plant residues: Short time in-situ incubation

Abstract

Article Info Received : 29.04.2017 Accepted : 08.07.2017 Soil microbial communities and their related characteristics are an important agent for soil fertility, productivity, and sustainability. Also, they are useful indicators of soil quality and life index in agricultural systems. The objectives of this study were the effect of nanozeolite and plant residues on soil microbial communities and their characteristics and also, the assessment of incubation timing on soil microbial properties. Soil microorganisms are very important in the decomposition of plant residues. In this regard, the soil samples were treated by nanozeolite (0, 10 and 30% Weight), Alfalfa and wheat straw (0 and 5% Weight). The treated soil samples were incubated in lab condition for 90 days. The result of this study showed that Bacterial, Fungal, and Actinomycete populations increased by the addition of 30% of nanozeolite and 5% of plant residues, especially alfalfa straw. Also, the addition of nanozeolite and plant residues treatments improved MBC, BR, and SIR as microbial characteristics. These parameters increased after 30 days of starting incubation, then decreased until the 75 th day and finally increased slightly on the 90 th day. In fact, the addition of nanozeolite and plant residues into the soil had positive effects on improvement of carbon pools and increasing carbon sequestration in it. Applied nanozeolite and plant residues in soil, improved carbon pools and increased carbon sequestration in soil. Also the application of nanozeolite and plant residues especially alfalfa straw had positive effects on improvement of soil biological communities and characteristics.

Acetotrophic sulfate-reducing consortia develop active biofilms on zeolite and glass beads in batch cultures at initial pH 3

“…Overall, starting with the same inoculum, the carrier materials (glass beads or zeolite) shaped the attachment and development of different microbial communities. Our results confirmed previous observations with sulfate-reducing bacteria (Basu and Baldwin 2000) or soil communities (Aminiyan et al 2018). The effect of the carrier material was also confirmed by diversity indexes and statistical analysis, showing that such difference was significant (Fig.…”

Strong Responses of Soil Greenhouse Gas Fluxes to Litter Manipulation in a Boreal Larch Forest, Northeastern China

“…This point can be explained by soil MBC content that contributed substantially to variations in soil CO 2 fluxes among the different litter manipulation treatments (Figure 5a). Generally, the litter layer has been recognized as an important source of soil organic matter and nutrients, which can strongly affect the energy supply and microbial substrate availability [41,42]. Previous studies and meta-analyses have reported that the increase in soil respiration with litter addition is mainly due to the strong positive effects of the litter inputs on soil substrate availability, such as nutrient availability, labile carbon, and the abundance of soil microorganisms [43][44][45].…”

Management of plant vigor and soil health using two agriusable nanocompounds and plant growth promotory rhizobacteria in Fenugreek

“…Decreased crystal size of nanozeolite is found beneficial which broadens the application of alumino silicates for different purposes (Mintova et al 2016). Application of nanozeolite @ 30% in soil with alfalfa straw enhanced the fungal and bacterial population (Aminiyan et al 2018) and also improved soil health under maize cultivation when applied @ 50 mg L −1 (Khati et al 2018).…”