Mobilidade de P, Cu e Zn em colunas de solo sob sistema de semeadura direta submetido às adubações mineral e orgânica

Bertol, Oromar João; Fey, Emerson; Favaretto, Nerilde; Lavoranti, Osmir José; Rizzi, Nivaldo Eduardo

doi:10.1590/s0100-06832010000600008

Cited by 19 publications

(22 citation statements)

References 29 publications

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“…and 3.0, 0.15 and 2.6 % of the total applied through NPK, respectively. These low values of P transferred via surface runoff in the different nutrient sources are similar to the results obtained by Bertol et al (2010), who observed P transfer via surface runoff of less than 15 % of the total applied and suggested that the P remains accumulated in the soil surface layer, as verified in the present study (Table 2) and in other studies (Adeli et al, 2008;Scherer et al, 2010;Ceretta et al, 2010a;Guardini et al, 2012a). Nevertheless, after successive manure applications, there is a tendency for saturation of adsorption sites of the reactive particles of the soil.…”

Section: P Transfer Via Surface Runoffsupporting

confidence: 88%

“…This shows that, especially for PL, using N contents for determining P rates might not be the best criterion. The reason is that, after successive manure applications, there was an accumulation of available P in the surface layers and migration in the soil profile, intensifying P transfer via surface runoff (Bertol et al, 2010;Ceretta et al, 2010b;Brennan et al, 2011;Kang et al, 2011) and leaching Girotto et al, 2013), which may cause eutrophication of surface and underground water bodies (Correll, 1998;Smith et al, 2007, Ceretta et al, 2010bHahn et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

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Available content, surface runoff and leaching of phosphorus forms in a typic hapludalf treated with organic and mineral nutrient sources

Lourenzi

Ceretta

Cerini

et al. 2014

Rev. Bras. Ciênc. Solo

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The application of animal manure to soil can increase phosphorus availability to plants and enhance transfer of the nutrient solution drained from the soil surface or leached into the soil profile. The aim of this study was to evaluate the effect of successive applications of organic and mineral nutrient sources on the available content, surface runoff and leaching of P forms in a Typic Hapludalf in no-tillage systems. Experiment 1 was set up in 2004 in the experimental area of UFSM, in Santa Maria (RS, Brazil). The treatments consisted of: control (without nutrient application) and application of pig slurry (PS), pig deep-litter (PL), cattle slurry (CS), and mineral fertilizers (NPK). The rates were determined to meet the N crop requirements of no-tillage black oat and maize, grown in the 2010/2011 growing season. The soil solution was collected after each event (rain + runoff or leaching) and the soluble, particulate and total P contents were measured. In November 2008, soil was collected in 2 cm intervals to a depth of 20 cm, in 5 cm intervals to a depth of 40 cm, and in 10 cm intervals to a depth of 70 cm. The soil was dried and ground, and P determined after extraction by anion exchange resin (AER). In experiment 2, samples collected from the Typic Hapludalf near experiment 1 were incubated for 20, 35, 58, 73 and 123 days after applying the following treatments: soil, soil + PS, soil + PL, soil + CS and soil + NPK. Thereafter, the soil was sampled and P was analyzed by AER. The applications of nutrient sources over the years led to an increase in available P and its migration in the soil profile. This led to P transfer via surface runoff and leaching, with the largest transfer being observed in PS and PL treatments, in which most P was applied. The soil available P and P transfer via surface runoff were correlated with the amounts applied, regardless of the P source. However, P transfer by leaching was not correlated with the applied nutrient amount, but rather with the solution amount leached in the soil profile.

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Section: P Transfer Via Surface Runoffsupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Available content, surface runoff and leaching of phosphorus forms in a typic hapludalf treated with organic and mineral nutrient sources

Lourenzi

Ceretta

Cerini

et al. 2014

Rev. Bras. Ciênc. Solo

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“…Silva et al (2003), evaluating extractors for quantification of Zn and Cu in soils planted to soybean in the State of Parana, Brazil, observed available Zn contents ranging from 0 to 10 mg dm -3 after extraction by Mehlich-1. Just as Cu, Zn tends to accumulate in the surface layer of the soil, due to low mobility in the soil profile (Bertol et al, 2010). Therefore, in general, they exhibit low leaching potential.…”

Section: Soilmentioning

confidence: 99%

Heavy Metals and Micronutrients in the Soil and Grapevine Under Different Irrigation Strategies

Oliveira

Lima

Salviano

et al. 2015

Rev. Bras. Ciênc. Solo

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Soils under natural conditions have heavy metals in variable concentrations and there may be an increase in these elements as a result of the agricultural practices adopted. Transport of heavy metals in soil mainly occurs in forms dissolved in the soil solution or associated with solid particles, water being their main means of transport. In this context, the aim of this study was to evaluate the heavy metal and micronutrient content in the soil and in the grapevine plant and fruit under different irrigation strategies. The experiment was carried out in Petrolina, PE, Brazil. The treatments consisted of three irrigation strategies: full irrigation (FI), regulated deficit irrigation (RDI), and deficit irrigation (DI). During the period of grape maturation, soil samples were collected at the depths of 0-10, 10-20, 20-40, 40-60, and 60-80 cm. In addition, leaves were collected at the time of ripening of the bunches, and berries were collected at harvest. Thus, the heavy metal and micronutrient contents were determined in the soil, leaves, and berries. The heavy metal and micronutrient contents in the soil showed a stochastic pattern in relation to the different irrigation strategies. The different irrigation strategies did not affect the heavy metal and micronutrient contents in the vine leaves, and they were below the contents considered toxic to the plant. In contrast, the greater availability of water in the FI treatment favored a greater Cu content in the grape, which may be a risk to vines, causing instability and turbidity. Thus, adoption of deficit irrigation is recommended so as to avoid compromising the stability of tropical wines of the Brazilian Northeast.

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“…Swine wastewater (SW) and mineral fertilization (MF) promoted significant differences in the contents of K + , Ca +2 and Mg +2 . The content of K + increased proportionally to the applied SW doses, which can be explained by the fact that this element is relatively mobile in the water-soil-plant system, contributing and facilitating its transfer to plants (Bertol et al, 2010).…”

Section: Resultsmentioning

confidence: 98%

Soybean nutritional status and seed physiological quality with swine wastewater

Passarin

Sampaio

Rosa

et al. 2016

Rev. bras. eng. agríc. ambient.

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Swine wastewater application is a practice that can become viable in agriculture, for minimizing fertilization costs and improving soil conditions. Therefore, it is essential to establish criteria that define appropriate application doses from the agronomic and environmental perspectives. The objective of this study was to evaluate the effects of swine wastewater doses associated with mineral fertilization on soybean nutritional status and physiological quality of seed. The experiment was conducted in the agricultural year of 2010/2011, using twenty-four drainage lysimeters in randomized block design in 4 x 2 factorial scheme, with four swine wastewater doses (0, 100, 200 and 300 m3 ha-1) applied before sowing, associated with presence and absence of mineral fertilization, in three replicates. Leaves at the flowering stage were collected for determinations of N, P, K+, Ca+2, Mg+2, Cu+2, Zn+2, Mn and Fe. Symptoms of toxicity and nutritional deficiency were observed in the crop. Furthermore, higher doses of swine wastewater caused lower physiological quality in soybean seeds.

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Mobilidade de P, Cu e Zn em colunas de solo sob sistema de semeadura direta submetido às adubações mineral e orgânica

Cited by 19 publications

References 29 publications

Available content, surface runoff and leaching of phosphorus forms in a typic hapludalf treated with organic and mineral nutrient sources

Available content, surface runoff and leaching of phosphorus forms in a typic hapludalf treated with organic and mineral nutrient sources

Heavy Metals and Micronutrients in the Soil and Grapevine Under Different Irrigation Strategies

Soybean nutritional status and seed physiological quality with swine wastewater

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