Agronomic performance of soybean grown in succession to winter cover crops

Krenchinski, Fábio Henrique; Cesco, V.J.S.; Rodrigues, Daniel; Albrecht, Leandro Paiola; Wobeto, Katle Samaya; Albrecht, Alfredo Júnior Paiola

doi:10.1590/s0100-204x2018000800005

Cited by 13 publications

(12 citation statements)

References 15 publications

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“…IAC-Fava larga), Crotalaria juncea and Crotalaria spectabilis. The cover plants studied presented good potential for soil conservation, due to the permanence of residues on the surface, except for Mucuna aterrima and Crotalaria spectabilis.Soil management practices such as no-tillage (NT), crop rotation and use of cover crops are important techniques which can maintain and/or promote yield gains and soil quality with less environmental impact (Krenchinski et al, 2018;Pavinato et al, 2017). However, these techniques are not adapted to the soil and climate conditions of the Cerrado in south Piauí, with poor results for NT, especially regarding the formation of straw, which is an essential factor for the good performance of this system.…”

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confidence: 99%

Dry Mass Accumulation, Nutrients and Decomposition of Cover Plants

Sousa¹,

Medeiros²,

Lacerda³

et al. 2019

JAS

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The use of cover crops is an important strategy for soil management in the Brazilian Cerrado to improve no-tillage (NT) systems. For this, it is necessary know the potential of cover crop species for biomass production, nutrient cycling, and persistence of residues on the soil surface in soils and climatic conditions of this biome. Thus, the experiment was developed to evaluate the agronomic potential of cover crops cultivated on an Oxisol (Latossolo Amarelo) in the Cerrado of Piauí, Brazil. The experiment was conducted from January 2015 to July 2016. The experimental design was in randomized blocks with 11 treatments and four replicates. The treatments consisted of single and intercropped cover species. The evaluations were: dry mass production, nutritional composition of the plants, nutrient accumulation by dry mass produced and decomposition rate of the dry mass produced for each treatment. The higher dry matter production was obtained with Crotalaria juncea, Cajanus cajan (cv. IAC-Fava larga), Pennisetum glaucum and Brachiaria ruziziensis. The lower dry matter production was obtained with Mucuna aterrima, and mix of Crotalaria spectabilis + Pennisetum glaucum. The higher nutrients accumulation in the plants occurred for Cajanus cajan (cv. IAC-Fava larga), Crotalaria juncea and Crotalaria spectabilis. The cover plants studied presented good potential for soil conservation, due to the permanence of residues on the surface, except for Mucuna aterrima and Crotalaria spectabilis.

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confidence: 99%

Dry Mass Accumulation, Nutrients and Decomposition of Cover Plants

Sousa¹,

Medeiros²,

Lacerda³

et al. 2019

JAS

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“…Regarding the effect of cover plants on the economic interest ones, Lima et al (2012a), observed that when using a cover cocktail (black oat, forage turnip and common vetch) the emergence speed index of soybean seedlings was higher, providing more vigorous seedlings. With better-performing seedlings, the yield may benefit, as reported by Krenchinski et al (2018), which showed an increase in soybean (Glycine max) production when using cover cropping, pointing out the potential of the black oat and the forage turnip.…”

Section: Introductionmentioning

confidence: 80%

Performance of cover and corn plants in different mechanical and biological management associations

Spliethoff

Rampim

Pott

2019

Agraria

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Countless cases of the no-tillage system in compacted layers are seen, making the adoption of management practices that improve the soil physical quality necessary. In this context, this study aimed to verify the influence of mechanical and biological management on the morphophysiological characters and yield of the corn crop and dry matter of cover crops cultivated in an Oxisol. The experiment was conducted at FAZESC, Farm School of the State University of the Central West-UNICENTRO, Guarapuava-PR, in an Oxisol with a very clayey texture. The used experimental design was of completely randomized blocks with split-split plots, with the following evaluated factors: with or without scarification in the plots, sowing with double disc or seed boot in the subplots and soil cover crops (black oat succeeded by the mixture composed by black oat, forage turnip, blue lupine, rye and common vetch; turnip succeeded by the consortium black oat + forage turnip; and fallow) in the sub-subplots. Dry matter production of soil covers, as well as morphophysiological attributes and corn crop yield were evaluated. Soil scarification did not affect corn yield, regardless of the used soil cover or furrowing system at sowing. Seeding done with seed boot limited the corn yield when associated to the soil cover with black oat and soil management with scarification. Soil cover has an effect on the stability and yield of the corn crop, with the fallow being the most productive instability. The mixture of toppings and the black oat + forage turnip had a high potential of dry matter production.

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“…The forage radish (Raphanus sativus L.) and vetch (Vicia sativa L.) are forage species considered important for cultivation during winter in southern Brazil, especially to cover and protect soil with plants, plant residues in notillage systems, and as weed suppressors (Cutti et al, 2016;Krenchinski et al, 2018). The forage radish is mainly used due to its fast growth, low nutrient demand, high tolerance to climatic adversities, and pivotal root system, which increases soil exploration and may improve soil physical conditions, in addition to presenting an intense nutrient cycling rate, with easy availability to the crop in succession (Cardoso et al, 2014;Krenchinski et al, 2018). As for the vetch, it is widely used because of its considerable nitrogen fixation capacity and rapid availability to next crops, which is illustrated by the fact that it can provide more than 200 kg of nitrogen per hectare (Restovich et al, 2012).…”

Section: Introductionmentioning

confidence: 99%