2019
DOI: 10.5539/jas.v11n5p58
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Production and Decomposition of Cover Crop Residues and Associations With Soil Organic Fractions

Abstract: 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 addit… Show more

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Cited by 17 publications
(3 citation statements)
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“…For corn and soybean grown under natural conditions in the same region and growing season, DW production for PM, SG and SH was 6.0 to 14.0, 7.0 to 12.0 and 4.0 to 9.0 t/ha, respectively, providing good soil coverage and Horticultura Brasileira, v. 41, 2023 No-till broccoli production using different cover crop residues and nitrogen doses protection (Torres et al, 2015;Collier et al, 2018;Mazetto Júnior et al, 2019).…”
Section: Resultsmentioning
confidence: 99%
“…For corn and soybean grown under natural conditions in the same region and growing season, DW production for PM, SG and SH was 6.0 to 14.0, 7.0 to 12.0 and 4.0 to 9.0 t/ha, respectively, providing good soil coverage and Horticultura Brasileira, v. 41, 2023 No-till broccoli production using different cover crop residues and nitrogen doses protection (Torres et al, 2015;Collier et al, 2018;Mazetto Júnior et al, 2019).…”
Section: Resultsmentioning
confidence: 99%
“…Por otra parte, resultan llamativas las diferencias entre tratamientos observadas en la profundidad de 20-40 cm, ya que en el corto plazo se espera observar efectos mayores en los primeros 5 a 10 cm de suelo (Beltrán et al, 2018;Duval et al, 2016;Mazetto Júnior et al, 2019). Sin embargo, en BEL se observaron efectos en la capa de 20-40 cm en el contenido de huminas, COPg, COM y COS tras dos años de ensayo, sugiriendo la importancia de las raíces en el ciclo del COS. Varios autores coinciden en que los residuos de las raíces y principalmente los exudados de las raíces vivas son más importantes en la transformación, estabilización y desestabilización del COS que los residuos de la biomasa aérea de las plantas (Dijkstra et al, 2020;Liang et al, 2022;McDaniel et al, 2014;Rasse et al, 2005;Sokol et al, 2018).…”
Section: Bellocqunclassified
“…La mayoría de los trabajos reportan que los cambios inducidos por los CC son observables, o bien son de mayor magnitud en los primeros 5 o 10 cm del perfil del suelo (Beltrán et al, 2018;Duval et al, 2016;Mazetto Júnior et al, 2019). Esto se debe a que es en la capa más superficial del suelo donde ingresa la mayor cantidad de residuos, si bien la principal fuente de COS son los residuos provenientes de las raíces (Basile-Doelsch et al, 2020;Rasse et al, 2005).…”
Section: Introductionunclassified