Aeration Irrigation Can Improve Growth of Table Grape cv. Red Globe (Vitis vinifera L.) in Greenhouse

Abstract

Aeration through subsurface drip irrigation (SDI) can promote plant growth and increase crop yield; however, more research is focused on annual crops, and there are few studies on perennial crops. We have studied a new type of SDI (SDI with tanks) suitable for cultivation and production of perennial fruit trees and photovoltaic aeration device in greenhouse. The results showed that aeration irrigation promoted the growth of new leaves, fine roots, and new branches of grape, regulated O 2 /CO 2 content in rhizosphere soil, and accelerated air exchange in rhizosphere soil. This study showed that aeration irrigation did not change the structure of bacteria and fungi but significantly increased the abundance of aerobic bacteria, such as Nitrospira and Cytophagia. Moreover, it promoted the increase of Pseudomonas and Aspergillus related to phosphate solubilization, that of Bacillus related to potassium solubilization, and that of Fusarium related to organic matter (OM) decomposition. This study shows that aeration irrigation through SDI with tanks can promote grape growth, which may be related to the ability of aeration irrigation to change the gas composition of rhizosphere soil, optimize the structure of rhizosphere soil microorganism.

Soil Ventilation Benefited Strawberry Growth via Microbial Communities and Nutrient Cycling Under High-Density Planting

“…In this study, in situ ventilation increased the concentration of soil O 2 and decreased that of soil CO 2 ( Figure 1 ). O 2 concentration and supply rates in the root zone plays a critical role in root respiration, root elongation, nutrient absorption and transpiration, and plant growth ( Zhao et al, 2019 ). In this process, soil bacterial and fungal communities also play vital roles in the turnover of SOC and C cycling ( Zhao et al, 2018 ).…”

“…In this study, ventilation increases relative abundance of Firmicutes phyla and its Bacilli (class, family, and genus) and decreases that of Gemmatimonadetes ( Figure 4 ). It has been reported that aeration irrigation significantly increased the abundance of aerobic bacteria, such as Nitrospira and Cytophagia ( Zhao et al, 2019 ). Furthermore, the abundance of Bacillus was positively correlated with soil O 2 concentrations ( Figure 8A ).…”

“…Thus, aerated irrigation has been widely used in agricultural systems, e.g., orchards, greenhouse, field, and pot experiments ( Bhattarai et al, 2004 ; Friedman and Naftaliev, 2012 ; Hou et al, 2016 ; Du et al, 2019 ). Aerated irrigation promoted the growth of new leaves, fine roots, and new branches of grape, and accelerated air exchange in rhizosphere soil ( Zhao et al, 2019 ). It also has been reported that ventilation (every 3 days) improved leaf functions and increased the net photosynthetic rate (Pn) of young peach trees ( Xiao et al, 2015 ).…”

“…Intermittent aeration can promote functional bacteria growth in N removal process of wetlands ( Liu et al, 2019 ). Meanwhile, aeration irrigation significantly increased the abundance of aerobic bacteria and promoted the increase of Pseudomonas and Aspergillus related to phosphate solubilization, that of Bacillus related to potassium solubilization, and that of Fusarium related to organic matter (OM) decomposition ( Zhao et al, 2019 ).…”

Can aeration improve bamboo soil fertility of soil below bamboo and fungal diversity under mulching conditions?

“…The impacts of hypoxic conditions induced by mulching on soil fungal community structure have been poorly studied. Several studies have reported that aeration could significantly ameliorate the plant rhizosphere micro‐environment, raise microbial biomass, promote plant growth and yield (Li et al, 2016; Zhao et al, 2019; Zhou et al, 2020); however, such studies have mainly investigated bacterial community responses to aeration (Li et al, 2020; Zhou et al, 2020), few reports have described the link between soil O 2 content and fungal community structure to our knowledge.…”