Mitigation of the Gradient of Chemical Properties in the Rooting Zone of Dystrophic Oxisols by Gypsum and Lime Inputs under a No-Till System

Nora, Douglas Dalla; Amado, Telmo Jorge Carneiro; Nicoloso, Rodrigo da Silveira; Mazuco, Antonio Cesar Batista; Piccin, Marcieli

doi:10.1590/18069657rbcs20150541

Cited by 18 publications

(13 citation statements)

References 24 publications

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“…Without water deficiency, soybean had a low probability of responding to gypsum (37%), and the probability of crop yield increasing more than 5% in soils with Al saturation >40% was only 20% (Figure 9d). Effect on yield (%) Sávio et al, 2011Caires et al, 2016Minato et al, 2017Costa, 2015Oliveira and Paven, 1998Zandoná et al, 2015Caires et al, 2002Paulleti et al, 2014Michalovicz et al, 2014Vicensi et al, 2016Soratto and Crusciol, 2008aFreitas et al, 2017Meert, 2013Trindade, 2013Soratto and Crusciol 2008bCrusciol et al, 2016Dalla Nora et al, 2017aCaires et al, 1999Dalla Nora and Amado, 2013Sousa et al, 2010Costa and Crusciol, 2016Caires et al, 2004Fois et al, 2017Caires et al, 2011bMarques, 2008Caires et al, 2006Somavilla et al, 2016Tanaka, 2013Caires et al, 2003Arf et al, 2014Rampim et al, 2015Galleto, 2016Fontoura et al, 2018Marchesan et al, 2017Caires et al, 2011aNeis et al, 2010Rampin et al, 2011Soares, 2016Gelain et al, 2014Freitas et al, 2016Castañon et al, 2011Caires et al, 1998Leguizamón, 2017…”

Section: Probability Of a Positive Crop Response To Gypsummentioning

confidence: 99%

“…The ability of gypsum to alleviate the adverse effects of high Al saturation in the subsoil on plant growth was first observed in the late 1970s in Brazilian soils (Ritchey, Souza, Lobato, & Correa, 1980). Since then, gypsum has been recommended as a conditioner for NT soils with medium-to-high subsoil acidity in Brazil and Paraguay (Costa & Crusciol, 2016;Dalla Nora, Amado, Nicoloso, Mazuco, & Piccin, 2017a;Soratto & Crusciol, 2008a;Zandoná et al, 2015). Because gypsum releases no OH − ions and its soluble products consume no H + ions, it has a negligible effect on soil pH (Zocca and Penn, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, its solubility (2.5 g L −1 ) is roughly 150 times higher than that of limestone Marchesan et al, 2017). As a result, gypsum considerably increases the mobility of basic cations such as exchangeable Ca 2+ , Mg 2 , and K + associated with SO 4 2− ions in the subsoil mainly, thereby reducing the activity and toxicity of exchangeable Al 3+ and improving water and nutrient uptake by plants Dalla Nora et al, 2017a;Pauletti, Pierri, Ranzan, Barth, & Motta, 2014;Zoca & Penn, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…The response of crops to gypsum is controversial and ranges from substantial to slight increases in grain yield Costa & Crusciol, 2016;Dalla Nora & Amado, 2013;Dalla Nora et al, 2017a;Soratto & Crusciol, 2008a). Some studies have revealed no effect (Dalla Nora et al, 2017b;Fontoura et al, 2019;Marchesan et al, 2017) Core Ideas • Crop response to gypsum is more likely in subsoils with high Al saturation under drought.…”

Section: Introductionmentioning

confidence: 99%

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Does gypsum increase crop grain yield on no‐tilled acid soils? A meta‐analysis

et al. 2020

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Improving the chemical conditions for plant growth in the subsoil is especially difficult in no-till (NT) soil because of the low solubility of limestone. In this situation, gypsum may be recommended due to its ability to mobilize exchangeable Ca 2+ and other basic cations associated with SO 4 2− anions mainly in the soil profile, thereby alleviating Al toxicity. However, the response of crops to gypsum is contradictory and ranges from a substantial increase to a slight decrease in grain yield. In this work, a meta-analysis comprising 129 harvests of six different grain crops (930 observation pairs in all) was conducted to identify the conditions under which grain yield responds to gypsum and to establish criteria for optimal management of gypsum as an amendment for NT soils. Based on the results, cereals (maize [Zea mays L.], wheat [Triticum aestivum L.], white oat [Avena sativa L.], barley [Hordeum vulgare L.], and rice [Oryza sativa L.]) have a high probability (77-97%) of their grain yield being increased by gypsum application to soils, with Al saturation exceeding 5% in the 0.20to 0.40-m layer. The average increase in grain yield was 14 and 7% in crops growing in the presence and absence of water deficiency, respectively. A positive response of soybean [Glycine max (L.)Merr.] to gypsum was observed in water-deficient soils with Al saturation exceeding 10%. Under these conditions, the probability of a positive response of soybean was 88%, and the average yield increase was 12%. Therefore, gypsum application decreases Al toxicity to plants and increases crop grain yields as a result in NT soils with high Al saturation.

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Section: Probability Of a Positive Crop Response To Gypsummentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Does gypsum increase crop grain yield on no‐tilled acid soils? A meta‐analysis

et al. 2020

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“…Caires et al (2016) observed a decrease of only 13% in Al saturation in the layer from 0.4 to 0.6 m in a very clayey soil after the surface application of 15,000 kg•ha -1 of PG, which corresponded to 20 × clay content. In four no-till long term experiments, Nora et al (2017) also observed Cotton is considered highly sensitive to Al, with a critical ECEC saturation of 10% (Fageria et al 1988). Howard and Adams (1965) argue that the absolute content of Ca limiting the growth of primary cotton roots varies according to the soil type, so the value of Ca relative to the total cations would be more stable, becoming a more appropriate indicator.…”

Section: Discussionmentioning

confidence: 89%

Gypsum application, soil fertility and cotton root growth

et al. 2019

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Since there is no consensus on phosphogypsum (PG) rates to be used in agriculture, a better understanding of its effects on the soil solution is needed. Cotton root growth was evaluated as related to Al and Ca activity in soil solution affected by PG. The experiment was carried out in rhizotrons filled with 30•dm -3 of soil. PG rates were estimated by multiplying the soil clay content by 0.0, 1.5, 3.0, 6.0 and 12.0, and it was mixed to the sub-soil.In the upper soil layer, limestone was applied. After 90 days, samples were taken for analysis, and cotton was planted. After 27 days, plants were harvested. PG increased soil pH and decreased Al content and activity. Without PG, dissolved organic carbon concentration was high in the soil solution, which explains the predominance of carbon Al-complexed with PG application. From 1,680 kg•ha -1 of PG (corresponding to 6 × clay content), sulphur and calcium had the highest concentrations, increasing the SO 4 Al-complexed. Cotton root length decreased in the upper layer and increased in the subsoil up to 2,324 kg•ha -1 (corresponding to 8.3 × clay content) of PG. Cotton root growth is better related with soil properties than with soil solution attributes, and the present recommendations for PG use based on soil clay content underestimate the rate to be applied.

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Base cation saturation ratios vs. sufficiency level of nutrients: A false dichotomy in practice

et al. 2021

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Base cation saturation ratio (BCSR) or "soil balancing" is a soil management philosophy which strives to maintain targeted base cation saturation percentages in soil.Despite lack of Land Grant University (LGU) endorsement for decades, BCSR is widely practiced by many farmers in the United States, particularly in the organic farming community. Here, we explore BCSR persistence and present a framework around BCSR that reflects how it is conceived and practiced on working farms, with a key premise that BCSR practitioners typically use both LGU-endorsed sufficiency level of available nutrients (SLAN) and BCSR in a hybrid approach. Drawing on (a) a survey of LGU soil fertility scientists' perspectives on BCSR, (b) decades of published literature on impacts of lime and gypsum application, (c) soil test data from organic corn fields in a four-state region of the Midwest, and (d) a large state-wide soil test dataset from Ohio, we examined and tested five unique hypotheses about BCSR. We provide evidence to support the following statements: (a) published peerreviewed literature on BCSR is limited and dated, (b) there is widespread agreement among soil fertility scientists that BCSR is not a legitimate practice of soil management, (c) studies of lime and gypsum application on soils can lend insight into the efficacy of BCSR, and (d) in many soils, managing soil acidity will also balance soils in BCSR ideal saturation percentages. Collectively, we summarize key findings from our interdisciplinary effort to provide an updated overview and a more nuanced perspective of BCSR in practice. INTRODUCTIONBase cation saturation ratio (BCSR) or "soil balancing" is a soil management philosophy which strives to maintain targeted base cation saturation percentages in soil, typically 60-

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Mitigation of the Gradient of Chemical Properties in the Rooting Zone of Dystrophic Oxisols by Gypsum and Lime Inputs under a No-Till System

Cited by 18 publications

References 24 publications

Does gypsum increase crop grain yield on no‐tilled acid soils? A meta‐analysis

Does gypsum increase crop grain yield on no‐tilled acid soils? A meta‐analysis

Gypsum application, soil fertility and cotton root growth

Base cation saturation ratios vs. sufficiency level of nutrients: A false dichotomy in practice

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