Long-, medium- and short-term dynamics of soil acidity in an integrated crop–livestock system under different grazing intensities

Martins, Amanda Posselt; Cecagno, Diego; Borin, José Bernardo Moraes; Arnuti, Fernando; Lochmann, Sarah Hanauer; Anghinoni, Ibanor; Bissani, Carlos Alberto; Bayer, Cimélio; Carvalho, P. C. F.

doi:10.1007/s10705-015-9759-5

Cited by 22 publications

(19 citation statements)

References 27 publications

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“…This result indicates that when low rates of surface limestone are used for maize intercropped with palisade grass, the forage dry matter yield is also low in the winter/spring, consequently reducing the estimated meat production. In the subtropical Brazilian regions, the surface limestone (application or reapplication) in an integrated crop-livestock system (soybeanbeef cattle) also increased the forage dry matter yield [mix of black oat + Italian ryegrass (Lolium multiflorum)] and reduced the longterm soil acidification, with a higher base saturation and lower aluminum saturation, mainly in the grazed areas compared to the non-grazed areas (Martins et al, 2014a(Martins et al, , 2014b(Martins et al, , 2016.…”

Section: Forage Characteristics and Estimated Meat Productionmentioning

confidence: 99%

Annual crop rotation of tropical pastures with no-till soil as affected by lime surface application

Crusciol

Marques

Filho

et al. 2016

European Journal of Agronomy

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Soil acidity and low natural fertility are the main limiting factors for grain production in tropical regions such as the Brazilian Cerrado. The application of lime to the surface of no-till soil can improve plant nutrition, dry matter production, crop yields and revenue. The present study, conducted at the Lageado Experimental Farm in Botucatu, State of São Paulo, Brazil, is part of an ongoing research project initiated in 2002 to evaluate the long-term effects of the surface application of lime on the soil's chemical attributes, nutrition and kernel/grain yield of peanut (Arachis hypogaea), white oat (Avena sativa L.) and maize (Zea mays L.) intercropped with palisade grass (Urochloa brizantha cv. Marandu), as well as the forage dry matter yield of palisade grass in winter/spring, its crude protein concentration, estimated meat production, and revenue in a tropical region with a dry winter during four growing seasons. The experiment was designed in randomized blocks with four replications. The treatments consisted of four rates of lime application (0, 1000, 2000 and 4000 kg ha −1), performed in November 2004. The surface application of limestone to the studied tropical no-till soil was efficient in reducing soil acidity from the surface down to a depth of 0.60 m and resulted in greater availability of P and K at the soil surface. Ca and Mg availability in the soil also increased with the lime application rate, up to a depth of 0.60 m. Nutrient absorption was enhanced with liming, especially regarding the nutrient uptake of K, Ca and Mg by plants. Significant increases in the yield components and kernel/grain yields of peanut, white oat and maize were obtained through the surface application of limestone. The lime rates estimated to achieve the maximum grain yield, especially in white oat and maize, were very close to the rates necessary to increase the base saturation of a soil sample collected at a depth of 0-0.20 m to 70%, indicating that the surface liming of 2000 kg ha −1 is effective for the studied tropical no-till soil. This lime rate also increases the forage dry matter yield, crude protein concentration and estimated meat production during winter/spring in the maize-palisade grass intercropping, provides the highest total and mean net profit during the four growing seasons, and can improve the long-term sustainability of tropical agriculture in the Brazilian Cerrado.

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Section: Forage Characteristics and Estimated Meat Productionmentioning

confidence: 99%

Annual crop rotation of tropical pastures with no-till soil as affected by lime surface application

Crusciol

Marques

Filho

et al. 2016

European Journal of Agronomy

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“…However, in another study, leaves contained greater Ca than Mg, while stems had lower Ca than Mg (Laredo and Minson, 1975). Furthermore, in this study, differences in plant (soybean and pasture) Ca and Mg residue concentrations were moderate since grazing affects soil-exchangeable Ca and Mg contents, with lower contents under NG conditions (Martins et al, 2014;Martins et al, 2016). However, soil Ca and Mg contents were greater than the threshold values considered by the CQFS-RS/SC (2004), and, therefore, not likely limiting to plant nutrition.…”

Section: Resultsmentioning

confidence: 48%

Calcium and Magnesium Released from Residues in an Integrated Crop-Livestock System under Different Grazing Intensities

Assmann

Martins

Anghinoni

et al. 2017

Rev. Bras. Ciênc. Solo

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Under integrated crop-livestock production systems (ICLS), plant and animal residues are important nutrient stocks for plant growth. Grazing management, by affecting the numbers of both plants and animals and the quality of residues, will influence nutrient release rates. The objective of this study was to evaluate the impact of grazing intensity on Ca and Mg release from pasture, dung, and soybean residues in a long-term no-till integrated soybean-cattle system. The experiment was established in May 2001 in a Latossolo Vermelho Distroférrico (Rhodic Hapludox). Treatments were a gradient of grazing intensity, determined by managing a black oat + Italian ryegrass pasture at 10, 20, 30, and 40 cm grazing height and no-grazing (NG), followed by soybean cropping. Ca and Mg release rates were determined in two entire cycles (2009/11). Moderate grazing (20 and 30 cm sward height) led to greater Ca and Mg release rates from pasture and dung residues, with low average half-life values (13 and 3 days for Ca and 16 and 6 days for Mg for pasture and dung, respectively). Grazing compared with NG resulted in greater Ca and Mg release from pasture and dung residues. Grazing intensity did not affect Ca and Mg release rates or amounts from soybean residues, but Ca and Mg release rates were greater from soybean leaves than from stems. Although moderate grazing intensities produce higher quality residues and higher calcium and magnesium release rates, a higher total nutrient amount is released by light grazing intensity and no-grazing, determined by higher residue production. Grazing intensity is, then, important for nutrient dynamics in the soil-plant-animal continuum.

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“…The study was carried out at the Espinilho Farm (28 • 56 S, 54 • 20 W, 425 m above sea level), which is located in the municipality of São Miguel das Missões, Rio Grande do Sul State, southern Brazil, as part of a long-term no-till integrated crop-livestock system experiment. The region has a humid subtropical climate (Cfa) according to Köppen's classification with an average annual air temperature of 19 • C and precipitation of 1850 mm [27]. During the study period, the accumulated rainfall was 838 mm and the average air temperature was 15 • C [28].…”

Section: Study Areamentioning

confidence: 99%

Spatiotemporal Distribution of Cattle Dung Patches in a Subtropical Soybean-Beef System under Different Grazing Intensities in Winter

et al. 2020

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Cattle dung distribution in pastoral ecosystems is uneven and affects nutrient availability to plants. Thus, identifying its spatiotemporal patterns is crucial to understanding the mechanisms underlying the system functioning. We aimed to characterize the spatiotemporal distribution of dung patches in mixed black oat (Avena strigosa Schreb.) and Italian ryegrass (Lolium multiflorum Lam.) pastures grazed at different intensities (sward heights of 0.1, 0.2, 0.3 and 0.4 m) in the winter stocking period of an integrated soybean-beef system in southern Brazil. All dung patches were located and georeferenced every 20 days. Dung distribution was analyzed using Thiessen polygons and semivariogram analysis. The spatial pattern of dung deposition was virtually similar over time but created distinct patterns in paddocks managed at different grazing intensities. Dung patch density was greater close to attraction points, resting and socialization areas regardless of grazing intensity. Lighter grazing intensities presented stronger spatial patterns with increased dung density in those areas, but those patterns weakened with increasing grazing intensity. Dung patches covered 0.4%, 0.9%, 1.1% and 1.5% of the area in paddocks managed at 0.4, 0.3, 0.2 and 0.1 m sward heights, respectively. Geostatistics proved useful for identifying spatial patterns in integrated crop-livestock systems and will potentially support further investigations.

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Long-, medium- and short-term dynamics of soil acidity in an integrated crop–livestock system under different grazing intensities

Cited by 22 publications

References 27 publications

Annual crop rotation of tropical pastures with no-till soil as affected by lime surface application

Annual crop rotation of tropical pastures with no-till soil as affected by lime surface application

Calcium and Magnesium Released from Residues in an Integrated Crop-Livestock System under Different Grazing Intensities

Spatiotemporal Distribution of Cattle Dung Patches in a Subtropical Soybean-Beef System under Different Grazing Intensities in Winter

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