Soil Chemical Attributes and Corn Productivity Grown on Legume Stubble in Agroforestry Systems

Collier, Leonardo Santos; Arruda, Everton Martins; Campos, Luiz Fernandes Cardoso; Nunes, José Nilton Vieira

doi:10.1590/1983-21252018v31n203rc

Cited by 16 publications

(9 citation statements)

References 18 publications

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“…In addition to the C/N ratio, lignin, polyphenol and chemical composition are factors that affect the decomposition rate in cover crops (Lima Filho et al 2014). These characteristics along with the stage of development at desiccation time (Padovan et al, 2015) and the climatic conditions during the evaluated period (Collier et al, 2018) show the ability of each species to maintain the cover on the soil.…”

Section: Resultsmentioning

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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Section: Resultsmentioning

confidence: 99%

Dry Mass Accumulation, Nutrients and Decomposition of Cover Plants

Sousa¹,

Medeiros²,

Lacerda³

et al. 2019

JAS

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“…The lower production of DM of the signal grass is probably related to the fact that the plant has a longer vegetative cycle than the SH and PM (Collier et al, 2018), which was evident when managed, SH and PM were in full bloom, while the SG was still at the beginning of flowering.…”

Section: Resultsmentioning

confidence: 99%

Green and sweet corn grown under different cover crops and phases of the no-tillage system

Nunes

Fávaro

Charlo

et al. 2022

Rev. bras. eng. agríc. ambient.

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Special corn is cultivated all year conventionally round; however, its productivity increases when grown under a no-tillage system (NTS). This study aimed to evaluate the agronomic performance of sweet and green corn cultivated under residues of different cover crops and the NTS implantation stages. Two experiments were carried out in the randomized block design, with four replications, in each of the three areas. The experiments consisted of evaluating the sweet and green corn, simultaneously, in three areas at different stages of development of NTS: initial (1 year), transition (7 years), and consolidation (19 years) with six types of cover crops: Signal grass (SG), Pearl millet (PM), Sunn hemp (SH), a mixture of SG + SH, SG + PM, and PM + SH. The dry matter (DM) production of the cover crops, the productivity of husked and unhusked ears, straw, and grain yield were evaluated. The SH had the highest dry mass production among the studied cover crops in all phases of the NTS. The phase of the NTS did not influence the productivity of ears with or without husk in green corn. The cultivation of sweet corn in transition and consolidation areas of the NTS showed better yields when compared to the initial phase of the system.

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“…In the harvest of 2008/09 and 2009/10, Pacheco et al (2013) observed T½ life of 42 (165%) and 111 (435%) days for brachiaria, 63 (223%) and 108 (382%) days for millet, and 44 (113%) and 130 (334%) days for brachiaria + pigeonpea, respectively. Collier et al (2018) observed T½ life of 57 (245%) days for sunn hemp when it was cultivated for 170 days. These results prove that the residue decomposition from the cover crops evaluated are decreased and present great T½ life on soil, when compared to the results observed in the irrigated area of this study.…”

Section: Discussmentioning

confidence: 95%

“…This great rate of decomposition of the brachiaria residues can be justified by the low temperature variation and elevated humidity conditions that occurred during this period of the year, in addition to the daily irrigation for vegetable production, which accelerates the decomposition process, as evidenced by Torres et al (2015), Assis et al (2016), Pacheco et al (2017), andCollier et al (2018).…”

Section: Discussmentioning

confidence: 97%

Production and Decomposition of Cover Crop Residues and Associations With Soil Organic Fractions

Júnior¹,

Torres²,

Costa³

et al. 2019

JAS

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The decomposition of plant residues, the changes in the total organic carbon (TOC) and the fractions of soil organic matter (SOM) occur differently in irrigated areas. The objective of this study was to quantify the biomass production, the decomposition of cover crops residues and relate them with the changes n the content and fractions of SOM in an irrigated area of vegetable crops. Six types of cover crop treatments were evaluated: brachiaria (B); sunn hemp (S); millet (M); B + S; B + M; S + M, plus an additional treatment (native area), with 4 repetitions. The production of fresh (FB) and dry biomass (DB), the rate of plant residue decomposition, TOC, SOM fractions and the coefficient of SOM (QSOM) were quantified. It was observed that the greatest and the lowest volume of crop residues were from the B and S cover crop, respectively. The cover crops in monoculture presented great decomposition rates and short half-life when compared to mixtures of cover crop. The TOC and QSOM were great in the 0 to 0.05 m soil layer, and in the M + S cover crop mixture, when compared to the 0.05 to 0.1 m soil layer and to other cover crops. Among the SOM fractions, the humin predominated in the most superficial soil layer (0 to 0.05 m).

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Soil Chemical Attributes and Corn Productivity Grown on Legume Stubble in Agroforestry Systems

Cited by 16 publications

References 18 publications

Dry Mass Accumulation, Nutrients and Decomposition of Cover Plants

Dry Mass Accumulation, Nutrients and Decomposition of Cover Plants

Green and sweet corn grown under different cover crops and phases of the no-tillage system

Production and Decomposition of Cover Crop Residues and Associations With Soil Organic Fractions

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