Acúmulo de matéria seca e nutrientes em soja, como variável do potencial produtivo

Kurihara, C. H.; Venegas, Víctor Hugo Álvarez; Neves, Júlio César Lima; Novais, Roberto Ferreira

doi:10.1590/s0034-737x2013000500013

Cited by 29 publications

(18 citation statements)

References 8 publications

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“…(Bender et al, 2015). These results are greater than those found by Bender et al (2015), but similar to those published by Flannery (1986) and proposed for modern soybean cultivars (Kurihara et al, 2013).…”

Section: Plant Phosphorus Uptakesupporting

confidence: 88%

Deep Banding Increases Phosphorus Removal by Soybean Grown under No‐Tillage Production Systems

et al. 2017

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Phosphorus fertilizer placement can have signifi cant agronomic and environmental implications in long-term no-till (NT) systems. Th e objective of this study was to evaluate soybean [Glycine max (L.) Merr.] response to P fertilizer placement strategies under long-term NT management. A fi eld study was performed near Nao-Me-Toque-RS (Location 1) and Sao Sepe-RS (Location 2), southern Brazil, during the 2014/2015 growing season. Th e experimental design was a randomized complete block with three replications. Triple superphosphate was applied using fi ve strategies: (i) strip tillage with deep band (ST-DB); (ii) strip tillage with band-applied 5 by 5 cm (ST-B); (iii) no-till with broadcast (NT-BR); (iv) no-till with band-applied 5 by 5 cm (NT-B); (v) and no-till with surface band (NT-SB). Plant height, dry weight, and P uptake were evaluated at 20, 40, 60, and 80 d aft er emergence (DAE) as well as P removed and grain yield at harvest. Th e ST-B application promoted greater plant height, dry weight, and P uptake at 80 DAE. However, ST-DB showed the greatest P removal compared to other treatments. Also, greater yields were obtained for ST-DB and NT-BR. Soil sampling aft er harvest showed that ST-DB increased soil test P levels by 19 and 11% at the 15-to 25-cm layer for Locations 1 and 2, respectively. While NT-BR increased soil test P by 43 and 36% at the 0-to 5-cm layer for Locations 1 and 2, respectively. Deep band P fertilizer placement maintained or increased soybean yield and P use under long-term NT in tropical soils.

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Section: Plant Phosphorus Uptakesupporting

confidence: 88%

Deep Banding Increases Phosphorus Removal by Soybean Grown under No‐Tillage Production Systems

et al. 2017

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“…The overall average S uptake was 11.9 kg ha-1 and was highest for cultivar CD-2737 (21 kg ha -1 ). These findings were in agreement with Kurihara et al (2013), who studied ten soybean cultivars at 28 commercial farms in the state of Mato Grosso do Sul. However, plant nutrient use efficiency has increased with genetic improvement and varies widely between different soybean cultivars, especially those with different growth habits (Bender et al, 2015;Gaspar et al, 2017, Balboa et al, 2018.…”

Section: Resultssupporting

confidence: 91%

“…Because nutrients were not limiting for plant growth, the potential of each different soybean cultivar for nutrient uptake, translocation, and conversion into biomass could be observed. Kurihara et al (2013) concluded that the amounts of nutrients accumulated in soybean stage R6 were similar to those calculated from the leaf analysis (R2). In the present study, all nutrient concentrations were within the adequate range for the interpretation of concentrations obtained in the leaf analysis.…”

Section: Resultssupporting

confidence: 52%

Yield and Nutrient Uptake of Soybean Cultivars Under Intensive Cropping Systems

Bortolon¹,

Bortolon²,

Camargo³

et al. 2018

JAS

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Sustainable agricultural systems are necessary to improve soybean [Glycine max (L.) Merr.] seed yield and to increase nutrient use efficiency. Intensification of agricultural systems is an important tool to increase farmers’ profitability in the Cerrado region (Brazil), where soybean is rotated with corn in the same growing season. However, this intensification requires soybean cultivar with short growing periods which is achieved by indeterminate soybean cultivars. There is a lack of information regarding the nutrient uptake by soybean cultivars under intensive agricultural systems in the Cerrado. We sought to investigate soybean biomass production and soybean seed yield of determinate and indeterminate soybean cultivars. We also aimed to quantify the amounts of nutrients taken up by soybean biomass and seeds. Field research was conducted to evaluate 17 soybean cultivars commonly grown by farmers, and we considered the determinate and indeterminate soybean growth habit. Nutrient uptake and aboveground soybean biomass were higher under shorter soybean growth and development cycles. Nitrogen, phosphorus and potassium extraction in modern cultivars was higher than in cultivars used in past decades. Nutrient use efficiency was higher in determinate soybean cultivars than in indeterminate soybean cultivars.

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“…Soybean cultivation provides low dry matter contribution to the soil surface (Embrapa-Empresa Brasileira de Pesquisa Agropecuária 2014), ranging from 4.81 to 2.81 Mg ha −1 , consisting of stems, petiole, trifoliate leaves, and pods (Kurihara et al 2013).…”

Section: Soil Incubationmentioning

confidence: 99%

For how long does the quality and quantity of residues in the soil affect the carbon compartments and CO2-C emissions?

et al. 2016

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Purpose The mineralization/immobilization of nutrients from the crop residues is correlated with the quality of the plant material and carbon compartments in the recalcitrant and labile soil fractions. The objective of this study was to correlate the quality and quantity of crop residues incubated in the soil with carbon compartments and CO 2 -C emission, using multivariate analysis. Materials and methods The experiment was conducted in factorial 4 + 2 + 5 with three replicates, referring to three types of residues (control, sugarcane, Brachiaria, and soybean), and two contributions of the crop residues in constant rate, CR (10 Mg ha −1 residue), and agronomic rate, AR (20, 8, and 5 Mg ha −1 residue, respectively, for sugarcane, soybean, and Brachiaria), evaluated five times (1, 3, 6, 12, and 48 days after incubation). At each time, we determined the CO 2 -C emission, nitrogen and organic carbon in the soil, and the residues. In addition, the microbial biomass and water-soluble, labile, and humic substance carbons fractionated into fulvic acids, humic acids and humin were quantified.Results and discussion Higher CO 2 -C emissions occurred in the soil with added residue ranging from 0.5 to 1.1 g CO 2 -C m −2 h −1 in the first 6 days of incubation, and there was a positive correlation with the less labile organic soil fractions as well as residue type. In the final period, after 12 days of soil incubation, there was a higher relation of CO 2 -C emission with carbon humin. The sugarcane and soybean residue (20 Mg ha −1 ) promoted higher CO 2 -C emission and the reduction of carbon residue. The addition of residue contributed to an 82.32 % increase in the emission of CO 2 -C, being more significant in the residue with higher nitrogen availability. Conclusions This study shows that the quality and quantity of residue added to soil affects the carbon sequestration and CO 2 -C emission. In the first 6 days of incubation, there was a higher CO 2 -C emission ratio which correlates with the less stable soil carbon compartments as well as residue. In the final period of incubation, there is no effect of quality and quantity of residue added to soil on the CO 2 -C emission.

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Acúmulo de matéria seca e nutrientes em soja, como variável do potencial produtivo

Cited by 29 publications

References 8 publications

Deep Banding Increases Phosphorus Removal by Soybean Grown under No‐Tillage Production Systems

Deep Banding Increases Phosphorus Removal by Soybean Grown under No‐Tillage Production Systems

Yield and Nutrient Uptake of Soybean Cultivars Under Intensive Cropping Systems

For how long does the quality and quantity of residues in the soil affect the carbon compartments and CO2-C emissions?

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