Effects of companion crops and tillage on soil phosphorus in a Brazilian oxisol: a chemical and 31P NMR spectroscopy study

Eberhardt, Diogo Néia; Marchão, Robélio Leandro; Quiquampoix, Hervé; Guernevé, Christine Le; Ramaroson, Volaniaina H.; Sauvadet, Marie; Muraoka, Takashi; Becquer, Thierry

doi:10.1007/s11368-020-02817-7

Cited by 8 publications

(4 citation statements)

References 72 publications

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“…The liberation of nutrients from plant residues relies on the microbial activity of the soil and other aspects related to vegetal species, such as its composition in lignin, lignin:N, and C:N ratio (Ribeiro et al, 2018;Catuchi et al, 2019;Carvalho et al, 2023). Factors that regulate the decomposition process are essential in managing cover crops and the productivity of integrated systems (Eberhardt et al, 2021). Suppose different plant species may have a similar capacity to absorb nutrients.…”

Section: Discussionmentioning

confidence: 99%

Decomposition of sorghum, grass, and sorghum intercropped with grass and soybean performance in integrated systems in the Cerrado

Sodré Filho,

Carvalho,

Marchão

et al. 2024

Sci. agric. (Piracicaba, Braz.)

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Previous cultivation of sorghum (Sorghum bicolor), Congo grass (Urochloa ruziziensis), and palisade grass (Urochloa brizantha cv. 'Marandu') may influence soybean (Glycine max) agronomic performance. The present work evaluated the decomposition of sorghum, grass, and sorghum intercropped with grass in the off-season to improve soybean yield in integrated crop systems in the Brazilian Cerrado and their dry matter production. This study was conducted in Planaltina, DF, in Central-West Brazil, on a Typical Acrustox soil from Mar 2010 until Feb 2012. The experimental design was a randomized block, with six crop systems before soybean: fallowing, sorghum, palisade grass (alone or intercropped with sorghum), and Congo grass (alone or intercropped with sorghum) with four replicates.Soybean agronomic performance, the crop systems' dry mass, and its decomposition rate were estimated over two years. Higher soybean grain yields were observed in cropping systems including Congo grass alone (3,349 kg ha -1 ) or intercropped with sorghum (3,317 kg ha -1 ). Sorghum intercropped with palisade grass produced 18,702 kg ha -1 of dry matter and 64.9 % (on average) of soil coverage during the soybean cycle. However, the highest lignin content was observed in sorghum intercropped with Congo grass (5.1 % on average).The results indicate that the cultivation of Congo grass, either alone or intercropped with sorghum, improves the agronomic performance of soybean in succession, compared to sorghum alone or palisade grass (alone or intercropped with sorghum). The intercropped systems provided the best nutrient efficiency use aiming at sustainable agriculture in the Cerrado region.

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Section: Discussionmentioning

confidence: 99%

Decomposition of sorghum, grass, and sorghum intercropped with grass and soybean performance in integrated systems in the Cerrado

Sodré Filho,

Carvalho,

Marchão

et al. 2024

Sci. agric. (Piracicaba, Braz.)

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“…Intercropping systems favor C accumulation in the soil profile [7][8][9] and make nutrient cycling more effective, mainly with regard to N [5], which improves the productivity of agricultural systems and soil quality [10]. When grasses such as brachiaria are planted, soil health is improved, nutrient use and cycling efficiency are intensified, soil protection is Plants 2024, 13, 835 2 of 13 enhanced and the socio-economic contribution is increased [11].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of Carbon and Soil Enzyme Activities under Arabica Coffee Intercropped with Brachiaria decumbens in the Brazilian Cerrado

de Sousa,

de Carvalho,

Ramos

et al. 2024

Plants

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The change in land use in the Brazilian Cerrado modifies the dynamics of soil organic matter (SOM) and, consequently, carbon (C) stocks and their fractions and soil enzyme activities. This study evaluated the effect of brachiaria (Brachiaria decumbens Stapf.) intercropped with Arabica coffee (Coffea arabica L.) on the stock and fractions of soil carbon and enzyme activities. The experiment was arranged in a completely randomized block design with three replications and treatments in a factorial design. The first factor consisted of coffee with or without intercropped brachiaria, the second of Arabica coffee cultivars (‘I.P.R.103’ and ‘I.P.R.99’) and the third factor of the point of soil sampling (under the canopy (UC) and in inter-rows (I)). Soil was sampled in layers of 0–10, 10–20, 20–30, 30–40, 40–60 and 60–80 cm. Soil from the 0–10 cm layer was also used to analyze enzymatic activity. Significant effects of coffee intercropped with brachiaria were confirmed for particulate organic carbon (POC), with highest contents in the 0–10 and 20–30 cm layers (9.62 and 6.48 g kg−1, respectively), and for soil enzymes (280.83 and 180.3 μg p-nitrophenol g−1 for arylsulfatase and β-glucosidase, respectively).

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“…Intercropping crops and pasture systems have been widely recommended for the Cerrado region in Central Brazil, as an alternative to problems caused by monoculture based on soybean (Glycine max L.), especially for improving soil quality (Crusciol et al, 2015), and nutrient efficiency use (Eberhardt et al, 2021). In this context, it is essential to understand the behavior of the intercropped species, especially when using sorghum (Sorghum bicolor (L.) Moench) with Urochloa, for there is no consensus on their development under off-season intercroppings in the Cerrado.…”

Section: Introductionmentioning

confidence: 99%

Intercropping sorghum and grasses during off-season in Brazilian Cerrado

Filho¹,

Marchão

Carmona

et al. 2022

Sci. agric. (Piracicaba, Braz.)

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Sorghum (Sorghum bicolor (L.) Moench) may be harmlessly intercropped with Urochloa species during the off-season in the Brazilian Cerrado. At the end of the sorghum cycle, forages can be used for straw production for soybean (Glycine max L.) as the summer crop. This study aimed to evaluate sorghum cultivated during the off-season, intercropped with palisade grass (Urochloa brizantha cv. 'Marandu' (Hochst. ex A. Rich). R. D. Webster) and Congo grass (Urochloa ruziziensis (R. Germ. and Evrard) Crins) in two row spacings (0.5 and 0.7 m) for their effect on plant growth, dry mass production, sorghum yield and soybean grain yield.The experiment was a randomized block design: a 3 × 2 factorial scheme, with three levels of intercropping (palisade grass, Congo grass or sole cropping) and two levels of row spacing (0.5 or 0.7 m) with four replicates. Several physiological growth indexes were estimated from 10 to 60 days after emergence (DAE), including dry matter production and sorghum agronomic performance. Sorghum accumulated 0.22 g of dry matter d -1 at 10 to 60 DAE, and was not affected by intercropping. The dry mass gain of forages (0.04 g d -1 on average) was not affected by sorghum either. Higher sorghum grain yield (2,922 kg ha -1 ) was observed under the 0.5-m row spacing when compared to the 0.7-m spacing. The results indicate that palisade or Congo grass may be used as companion crops for sorghum with no grain yield loss, be it to improve soybean grain yield, soil cover or integrated crop systems, aiming at sustainable intensification.

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Effects of companion crops and tillage on soil phosphorus in a Brazilian oxisol: a chemical and 31P NMR spectroscopy study

Cited by 8 publications

References 72 publications

Decomposition of sorghum, grass, and sorghum intercropped with grass and soybean performance in integrated systems in the Cerrado

Decomposition of sorghum, grass, and sorghum intercropped with grass and soybean performance in integrated systems in the Cerrado

Dynamics of Carbon and Soil Enzyme Activities under Arabica Coffee Intercropped with Brachiaria decumbens in the Brazilian Cerrado

Intercropping sorghum and grasses during off-season in Brazilian Cerrado

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