Rationale of the Economy of Soil Testing

Raij, Bernardo van; Cantarella, Heitor; Quaggio, J. A.

doi:10.1081/css-120014463

Cited by 16 publications

(16 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Two field experiments were conducted in the 2019-2020 season in Brazil with runner-type peanut cultivar Granoleico (InfoLEG, 2003) in Brazil. Sites were in adjacent fields near Regente Feijó in São Paulo State at 22˚13′9″ S, 51˚18′25″ W, 483 m elevation with sandy Arenic Hapludults soil of low fertility and much iron and aluminum oxides (Table 1) (Raij et al, 2001). One experiment in Brazil was on a site of terminated perennial degraded pasture of predominantly Urochloa [Urochloa decumbens (Stapf) R. Webster] (peanut following pasture).…”

Section: Characterization Of the Experimental Fieldsmentioning

confidence: 99%

Adjusting peanut plant density and potassium fertilization for different production environments

et al. 2023

View full text Add to dashboard Cite

Peanut pod yield and its response to fertilizer-K can be affected by the environment × plant density interaction. Research was conducted with the objective of determining peanut growth and yield response to planting density and fertilizer-K application under rainfed conditions in Brazil and irrigation in the United States.The effects of plant planting density and K fertilization were more frequent in rainfed areas, compared to irrigated environments. Peanut leaf area index (LAI) and dry matter accumulation (DM) increased with increasing plant density (mainly at 30 days after plant emergence-average increments of 70% and 80% for LAI and DM, respectively), whereas the stomatal conductance was decreased, mainly in rainfed fields. In low-K soil, the application of 50 kg ha −1 of K increased leaf K concentration (12% [Brazil], first-year area and 28% crop rotation area) and stomatal conductance in rainfed fields, resulting in greater yield (23% [1340 kg ha −1 ; Brazil], first-year area) at low plant density. In the irrigated fields, yield increased with plant densities up to 19 plants m −2 . For rainfed crops, plant density exceeding 11 plants m −2 resulted in lower yield in the area of adequate K content in the soil. Therefore, in rainfed fields, plant density must be low to assure peanuts response to K. In irrigated environments, high plant density is less detrimental to peanut yield, but no increase is observed with plant density greater than 19 plants m −2 . Additionally, there was no yield increase with the application of 50 kg ha −1 of K, in irrigated environments.

show abstract

Section: Characterization Of the Experimental Fieldsmentioning

confidence: 99%

Adjusting peanut plant density and potassium fertilization for different production environments

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Phosphorus is one of the most expensive and widely used major nutrients used in broadacre cropping in Australia (FIFA 2008) and globally (van Raij et al 2002). Therefore, there is a major economic benefit in developing a soil test capable of accurately predicting the P status of a soil, which in turn will facilitate efficient fertilisation strategies and reduce the risks of environmental pollution due to over fertilising.…”

Section: Introductionmentioning

confidence: 99%

Prediction of wheat response to an application of phosphorus under field conditions using diffusive gradients in thin-films (DGT) and extraction methods

et al. 2010

View full text Add to dashboard Cite

The ability of the Diffusive Gradients in Thin Films (DGT) technique and two other established testing methods (Colwell, resin) to predict wheat responsiveness to applied P from 35 field trials across southern Australia was investigated. Regression analysis of relative early dry matter production and grain yield responses demonstrated that the DGT method predicted plant responsiveness to applied P more accurately than Colwell P and resin P at sites where maximum yields were reached with P rates used (20 out of 35). The measured concentration in soils at the DGT surface, C DGT , explained 74% of the variation in response for both early dry matter and grain, compared to 7% for early dry matter and 35% for grain using the resin P method. No significant relationships could be obtained for Colwell P although modifying the Colwell test data using Phosphorus Buffering Index resulted in a correct response prediction for 11 of the 20 field sites compared to 18 for DGT and 14 for resin P. These observations suggest that the DGT technique can assess plant available P in soils with significantly greater accuracy than traditional soil P testing methods. The critical P threshold, expressed as C DGT , was 255 μg L −1 for early dry matter and 66 μg L −1 for grain.

show abstract

“…Soil correction and fertilization management followed the recommendations for sugarcane cultivation in Brazil (van Raij et al, 1997). The chemical characteristics of the soil were determined at depths of 0.00-0.25 and 0.25-0.50 m (van Raij et al, 2001), and the results and soil classification are shown in Table 1 (Soil Survey Staff, 2014).…”

Section: Site Descriptionmentioning

confidence: 99%

The frequency and phenological stage of foliar application of nutrients and biostimulant can increase sugarcane yield and biomass and bioenergy productions

Hervatin,

Prado Filho,

Momesso

et al. 2024

Crop Science

View full text Add to dashboard Cite

The impacts of sugarcane (Saccharum spp.) production include an extensive area of cultivation, high use of technology, and the generation of by‐products that must be utilized. Achieving higher productivity while reducing the expansion of cultivation is challenging. A potential strategy for increasing sugarcane yields and productivity is the foliar application of nutrients and biostimulants at different stages of sugarcane growth. The present study assessed the impact of the foliar application of nutrients (N, B, Cu, and Zn) and a growth regulator as biostimulant (indole butyric acid, gibberellic acid, and kinetin) on sugarcane metabolism, stalk and sugar production, and quality. Field experiments were performed at 17 sites during four growing seasons (2017–2018, 2018–2019, 2019–2020, and 2020–2021) using sugarcane with three harvest times (early, mid‐late, and late harvests). The treatments were as follows: (i) no foliar application of the biostimulant and nutrients (control), (ii) foliar application of the biostimulant and nutrients at the vegetative stage (VS) of sugarcane, (iii) foliar application of the biostimulant and nutrients at the maturation stage (MS) of sugarcane, and (iv) foliar application of the biostimulant and nutrients at both the vegetative and maturation stages (VMS). Foliar application did not increase ribulose 1,5‐bisphosphate carboxylase activity but increased phosphoenolpyruvate carboxylase activity and the activities of the antioxidant enzymes. Peroxidase and catalase activities were higher, >100% and 45%, respectively, in VMS, whereas superoxide dismutase activity increased by 54% in MS compared with control. Consistent with these results, sugarcane had low hydrogen peroxide and malondialdehyde contents in VMS. In addition, the plant biometric parameters were highest in VMS, which sugarcane produced 105, 92, and 86 Mg stalk h−1 in early, mid‐late, and late harvest seasons, respectively. In summary, the foliar application of the biostimulant and nutrients efficiently promoted the growth, productivity, and quality of early, mid‐late, and late harvest seasons. The positive effects of foliar application on the enzymatic and physiological responses of sugarcane can be achieved when applications are performed in both the VMS in all harvest seasons.

show abstract

Rationale of the Economy of Soil Testing

Cited by 16 publications

References 14 publications

Adjusting peanut plant density and potassium fertilization for different production environments

Adjusting peanut plant density and potassium fertilization for different production environments

Prediction of wheat response to an application of phosphorus under field conditions using diffusive gradients in thin-films (DGT) and extraction methods

The frequency and phenological stage of foliar application of nutrients and biostimulant can increase sugarcane yield and biomass and bioenergy productions

Contact Info

Product

Resources

About