Αποτελέσματα Αναζήτησης
1 Ιουλ 2016 · Purpose To better understand the effect of fertilizer practices on soil acidification and soil organic matter (SOM) stocks in a rice-wheat system, a field experiment was conducted to (i)...
17 Φεβ 2016 · Decreases in soil pH were shown to induce sulfate solubility resulting in increased Al-SO 4 concentrations (Chamier et al. 2015). The concentrations of Al-SO 4, Al-F, Al-SiO 3, Al 3+, and Al-DOM proportionally decreased at elevated soil pH, however, conversely for Al-OH concentration (Fig. 2).
10 Νοε 2010 · The concentration of Al 3+ in solution increases exponentially as soil pH decreases below 5 . This occurs because of the increase in hydronium ions (H 3 O +) in solution, which results in a rapid diffusion of protons into the soil’s mineral structure and promotes hydrolysis .
15 Ιουλ 2019 · The toxic effect of different Al species on plant growth is in the order 13 Al> Al 3+ > Al(OH) 2 + > Al(OH) 3 > Al(OH) 4 - (Neenu and Karthika, 2019). Aluminium has no biological role and...
8 Δεκ 2020 · Fertilizer use increased by about 30% per hectare from 2002 to 2017, which was about 95 tons per hectare. By nutrient, the increase was about 24% for nitrogen, 25% for P 2 O 5 , and 53% for K 2...
The toxic effect of the different forms of Al (speciation) on plant growth diminishes in the following order: Al, Al(OH) 2+, Al(OH) 2 +, Al(OH) 4-(Figure 2B). At a low pH (about 4.3) trivalent aluminum (Al 3+ ) is the most abundant form and has the greatest impact on plant growth.
15 Απρ 2021 · Aluminum undergoes multiple hydrolysis under soil pH < 5 forming [Al(H 2 O) 6] 3+, usually referred to as Al 3+ ion (Rahman et al., 2018). The Al 3+ and Al(OH) 4 − are often described as the major rhizotoxic Al species at low and high-pH levels, respectively.
