Nitrogen Fertilization on Pearl Millet and Guinea Grass: Phytomass Decomposition, Cellulose, Lignin, and Nutrients Release

Soratto, Rogério Peres; Costa, Cláudio Hideo Martins da; Crusciol, Carlos Alexandre Costa; Neto, J. F. Teixeira; Moro, Edemar

doi:10.1080/00103624.2019.1631327

Cited by 6 publications

(7 citation statements)

References 25 publications

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“…Soratto et al . (2019) evaluated the nitrogen content of Mombaça guinea grass and reported amounts that surpassed 95.3 kg/ha.…”

Section: Discussionmentioning

confidence: 99%

“…A study by Costa et al (2015) on the nutrient contents and decomposition rate of the biomass of forage plants showed that Xaraes palisadegrass accumulated 81.3 kg/ha of N; which this amount was similar to that obtained in the current study, which was 83.0 kg/ha at time point zero. Soratto et al (2019) evaluated the nitrogen content of Mombaça guinea grass and reported amounts that surpassed 95.3 kg/ha.…”

Section: Aspects Of Mulch Biomass and Nutrient Cyclingmentioning

confidence: 99%

“…Brachiaria species are considered the primary species for the production of mulch biomass, with the potential to accumulate and release nutrients into the soil for subsequent crops (Flávio Neto et al ., 2015; Costa et al ., 2016; Costa et al ., 2017). However, with the emergence of new Panicum maximum cultivars, the Mombaça guinea grass (Soratto et al ., 2019) and Tamani guinea grass (Machado et al ., 2017) have been increasingly used in integrated systems, with positive results.…”

Section: Introductionmentioning

confidence: 99%

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Brachiaria and Panicum maximum in an integrated crop–livestock system and a second-crop maize system in succession with soybean

et al. 2020

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Owing to its contribution to the maintenance of carbon stocks, soil nitrogen and nutrient cycling for subsequent crops, the integrated systems become increasingly important for agricultural conservation. Thus, the objective of this study was to evaluate the biomass production of and total nutrient in Brachiaria spp. and Panicum maximum forage grasses used as mulch and soybean yields in an integrated crop–livestock system and second-crop maize succession system. The treatments consisted of the following cropping systems: Xaraes palisadegrass intercropped with soybean, Congo grass intercropped with soybean, Mombaça guinea grass intercropped with soybean, Tamani guinea grass intercropped with soybean and a soybean/maize succession system. The forage grasses were established during the soybean R6–R7 stage. Compared with Congo grass, Xaraes palisadegrass, Mombaça guinea grass and Tamani guinea grass produced more biomass and equivalent amounts of fertilizer returned to the soil and resulted in greater nutrient cycling, indicating the benefits of these grasses for use as mulch in integrated production systems. Maize had a greater C/N ratio, but the forage grasses also exhibited high potential by protecting the soil until the end of the soybean development cycle. The use of an integrated crop–livestock system combined with a forage cropping system provided greater soil nutrient cycling than the maize cropping system did, which resulted in increased soybean yields, thus contributing to the sustainability of agricultural systems.

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“…Soratto et al . (2019) evaluated the nitrogen content of Mombaça guinea grass and reported amounts that surpassed 95.3 kg/ha.…”

Section: Discussionmentioning

confidence: 99%

Section: Aspects Of Mulch Biomass and Nutrient Cyclingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Brachiaria and Panicum maximum in an integrated crop–livestock system and a second-crop maize system in succession with soybean

et al. 2020

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“…But, their ability to biologically fix N is of particular interest, although they usually produce less biomass (Paul et al, 2020) and have lower NUE than grasses (Rao, 2001). Additionally, because they have low C:N ratio, the intense soil microbial activity in the tropics accelerates residue decomposition, as opposed to the more recalcitrant residues of grasses, which provides longer periods of soil cover (Gerlach et al, 2019;Soratto et al, 2019). However, it should be noted that intercropping legume with Urochloa species may increase its benefits to the system (Fisher et al, 1994;Costa et al, 2012).…”

Section: Urochloa In Tropical and Subtropical Conservation Agriculturementioning

confidence: 99%

Urochloa in Tropical Agroecosystems

Baptistella¹,

Andrade

Favarin³

et al. 2020

Front. Sustain. Food Syst.

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Increasing biodiversity is an important issue in more secure and sustainable agriculture. Diversified systems are more resilient to climate change, environmental stresses and enhance soil health, nutrient cycling and nutrient use efficiency. In tropical agroecosystems, cover crops and intercrops are an alternative toward a more diverse and sustainable production. Urochloa spp. (syn. Brachiaria spp.) are perennial grasses, known for their high biomass production. They are commonly used as cover and companion crops in conservation agriculture in the tropics and the residues left in the field after cutting protect the soil and provide nutrient to the next crop cycle or intercropped culture. Urochloa species roots are vigorous, abundant and deep, as opposed to the more shallow and scarce roots of common crops. These traits contribute to carbon sequestration, soil organic matter stabilization and nutrient cycling. Urochloa roots also improve soil physical characteristics and influence soil nutrient dynamics, reducing nutrient losses and enhancing cycling, what is key to achieve greater nutrient use efficiency in agriculture. For instance, Urochloa root exudates can reduce nitrogen losses by denitrification and leaching through a process called biological nitrification inhibition; root exudates can mobilize recalcitrant phosphorus from soils and make it available for plant uptake; the deep roots of these grasses have the potential to recover nutrients that are virtually lost away from the root zone of other crops. This review compiles scientific progress regarding the introduction of Urochloa in agroecosystems, mainly on the aspects related to the contribution to more secure and sustainable agriculture.

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“…Decomposition dynamics of plant residues in tropical regions is essential due to the high temperatures that greatly accelerate this process (Muniz et al, 2021). The quantity of plant residues left on the soil -and its quality -must be considered when choosing the integrated crop systems since they influence the process of decomposition (Catuchi et al, 2019;Carvalho et al, 2023), improve soil physical and biological conditions, as well as facilitate nutrient cycling (Soares et al, 2019;Soratto et al, 2019).…”

Section: Introductionmentioning

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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Nitrogen Fertilization on Pearl Millet and Guinea Grass: Phytomass Decomposition, Cellulose, Lignin, and Nutrients Release

Cited by 6 publications

References 25 publications

Brachiaria and Panicum maximum in an integrated crop–livestock system and a second-crop maize system in succession with soybean

Brachiaria and Panicum maximum in an integrated crop–livestock system and a second-crop maize system in succession with soybean

Urochloa in Tropical Agroecosystems

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

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