Methods and extractants to evaluate silicon availability for sugarcane

Crusciol, Carlos Alexandre Costa; Arruda, Dorival Pires de; Fernandes, Adalton Mazetti; Antonângelo, João Arthur; Alleoni, Luís Reynaldo Ferracciú; Nascimento, Carlos Antônio Costa do; Rossato, Otávio Bagiotto; McCray, J. Mabry

doi:10.1038/s41598-018-19240-1

Cited by 32 publications

(19 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Despite the abundant literature showing that Si is beneficial for crops (Liang et al, 2015), the bioavailability of Si remains a challenging topic (Haynes, 2014). To quantify the plant-available Si (PAS), various empirical indicators have been proposed (Nayar et al, 1977;Barbosa-Filho et al, 2001;Korndorfer et al, 2001;Narayanaswamy and Prakash, 2010;Yanai et al, 2016;Crusciol et al, 2017). These indicators are based on the use of chemical extractants of DSi from soils that give good correlations with plant Si content or yield.…”

Section: Introductionmentioning

confidence: 99%

pH as a proxy for estimating plant-available Si? A case study in rice fields in Karnataka (South India)

et al. 2018

View full text Add to dashboard Cite

Background and aims. Although Si is recognized as a beneficial element for crops, the determination of plant-available silicon (PAS) in soils has become challenging. A correlation between pH and PAS indicators has been reported in the literature due to the higher degree of weathering of acidic soil. We tested this hypothesis in the cultivated rice fields of Karnataka State, India, which exhibit gradients of pH and climate. Method. Two hundred surface soil samples were collected from rice fields representing nine of the ten agro-climatic zones (ACZs) defined for Karnataka. We analyzed the Si extracted by calcium chloride (Si CC) and the Si extracted by acetate-acetic acid (Si AA) as PAS indicators. The samples were analyzed for particle size distribution, pH, electrical conductivity and cation exchange capacity. Forty subsamples were selected for mineralogical and chemical analysis. Results. PCA of the 200 samples showed that PAS indicators and pH were positively correlated. Si AA was also positively correlated with electric conductivity (EC), CEC, and the silt fraction and negatively correlated with the sand fraction. A separation of the data arbitrarily made at pH 7.5 showed that below 7.5, the correlation between PAS indicators and pH was better than considering the whole 200 samples. The distribution of Si AA with pH matched the curve of adsorbed Si given in the literature. Soils characterized by low pH and high contents of sand, SiO 2 , Zr and Hf, showed a higher degree of weathering. They were preferentially located along the coast, where the rainfall is the most abundant. The depletion of PAS indicators was also in good agreement with the predominance of kaolinite instead of smectite, which characterizes a higher degree of desilication. Conclusion. We demonstrated that the correlation between pH and PAS indicators is explained by natural Si depletion (weathering intensity) and the effect of Si adsorption. We suggest that at pH values up to 7.5, pH can be used as a proxy for PAS in similar types of pedo-climatic conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

pH as a proxy for estimating plant-available Si? A case study in rice fields in Karnataka (South India)

et al. 2018

View full text Add to dashboard Cite

show abstract

“…However, acetic acid can lead to misinterpretation of Si availability. The extraction of Si with the acetic acid solution occurs at very low pH values (1.0 -2.0), which can super estimate Si availability by dissolving unavailable Si forms in the soil (Crusciol et al, 2018). In the present study, CaCl 2 had a higher correlation with Si concentration in plants (0.97, p < 0.01) than acetic acid (0.91, p < 0.05) (Figure 2).…”

Section: Correlation Between Si Concentration In Plants and Soil Si Ementioning

confidence: 45%

“…Sugarcane in this part of the country is grown mainly on sandy soils. These soils are characterized by low cation exchange capacity (CEC), water retention, natural fertility, and organic matter, and deficient soil soluble Si contents (Crusciol et al, 2018). Thus, sugarcane cultivated on these depleted-Si soils can benefit from Si fertilization.…”

Section: Introductionmentioning

confidence: 99%

Biomass and concentration of nutrients and silicon in sugarcane grown on soil fertilized with diatomite

Oliva

Nascimento

Silva

et al. 2020

Agraria

View full text Add to dashboard Cite

Silicon (Si) plays an important role in sugarcane, but there is a gap of information regarding the potential of diatomite as a Si fertilizer to this crop. Here, we assessed the effects of five rates (equivalents to 75; 150; 225; 300 and 375 kg ha-1 Si) of a diatomite-based fertilizer on the biomass yield and concentration of nutrients and Si in sugarcane plants grown on a sandy soil. The efficiency of the extractants acetic acid and calcium chloride in predicting Si uptake was also assessed. Results showed that diatomite was efficient in supplying available Si in the soil and increased Si concentration in the plant. The addition of diatomite significantly increased the available contents of P, K, Mn, Cu, and the cationic exchangeable capacity of the soil. The concentrations of N, P, Mn, Cu, and Zn in shoots were elevated, suggesting that the fertilizer can play a role in the efficient use of nutrients by sugarcane. The extractant 0.01 mol L-1 CaCl 2 was better correlated with Si concentration in plants than 0.5 mol L-1 acetic acid. Therefore, CaCl 2 is the recommended extractant to estimate Si availability because of its higher efficiency and lower cost.

show abstract

“…The Si benefits are more frequent in hyperaccumulator crops [32,33], which contain SiO 2 concentrations above 5% of shoot dry matter [70,71]. In addition, the Si-increased benefits and yields were associated with proline and total sugar accumulation under biotic and abiotic stress conditions [26,65,72]. Silicon use was reported to increase rice [73], maize [74], sugar cane [75], wheat [37,76], sorghum [77], sunflower [78], peanut, soybean, and common bean [79] yields.…”

Section: Discussionmentioning

confidence: 99%

Assessing Forms of Application of Azospirillum brasilense Associated with Silicon Use on Wheat

et al. 2019

View full text Add to dashboard Cite

The use of biological techniques such as plant growth-promoting bacteria (PGPB) can represent a sustainable alternative for cereal growth in tropical areas. Research showing the potential for management practices which optimize PGPB inoculation is of utmost importance. This research was developed to investigate the potential use of Azospirillum brasilense in wheat cropping systems, as well as to assess the potential synergistic interactions between the beneficial use of silicon (Si), principally under abiotic and biotic conditions, and A. brasilense forms of application and how they impact crop development and wheat yield. The study was set up in a Rhodic Hapludox under a no-till system. The experimental design was a completely randomized block design with four replicates arranged in a factorial scheme with four inoculation forms (control, seed, groove, and leaf) and two soil acidity corrective sources (Ca and Mg silicate as Si source and dolomitic limestone). Seed inoculation was more effective in promoting wheat growth and development, with higher yield, showing an increase of 26.7% in wheat grain yield. Calcium and magnesium silicate application associated with foliar inoculation and without A. brasilense inoculation can increase wheat grain yield.

show abstract

Methods and extractants to evaluate silicon availability for sugarcane

Cited by 32 publications

References 55 publications

pH as a proxy for estimating plant-available Si? A case study in rice fields in Karnataka (South India)

pH as a proxy for estimating plant-available Si? A case study in rice fields in Karnataka (South India)

Biomass and concentration of nutrients and silicon in sugarcane grown on soil fertilized with diatomite

Assessing Forms of Application of Azospirillum brasilense Associated with Silicon Use on Wheat

Contact Info

Product

Resources

About