Indicators of soil quality in the implantation of no-till system with winter crops

Nogueira, Marco Antônio; Telles, Tiago Santos; Fagotti, Dáfila dos Santos Lima; Brito, Osmar Rodrigues; Prete, Cássio Egídio Cavenaghi; Guimarães, María de Fátima

doi:10.1590/s1806-66902014000500014

Cited by 4 publications

(5 citation statements)

References 28 publications

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“…The qmic reflects the availability of C substrates for soil microorganisms and C turn over in soil. This ratio will increase or decrease for a time as the input of organic matter in soil increases or decreases (Nogueira et al 2014). In line with Bohme and Bohme (2006), this ratio also increases with the decomposability of soil organic matter.…”

Section: Microbial Biomass Carbon (Mbc) and Microbial Quotient (Qmic)mentioning

confidence: 99%

Assessment of soil organic carbon stocks and fractions under different agroforestry systems in subtropical hill agroecosystems of north-east India

et al. 2015

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Soil total organic carbon (TOC) is not sensitive enough to measure the short and medium term changes due to land use change practices, and thus meaningful fractions of soil organic carbon (SOC) should be measured. The objective of this study was to evaluate four agroforestry systems (AFSs) in order to test the hypothesis that agroforestry systems promote an increase in the soil organic carbon stocks and fractions, thus improving soil quality. For this, four 26 years old agroforestry systems consisting of multipurpose tree species (MPTs) (Michelia oblonga Wall, Parkia roxburghii G. Don, Alnus nepalensis D. Don, and Pinus kesiya Royle ex-Gordon) maintained at ICAR Research Complex, Umiam, Meghalaya, India were tested and compared with control plot for SOC stocks, microbial biomass carbon (MBC), readily oxidizable carbon (ROC), non-labile carbon (C NL ), particulate organic carbon (POC), and carbon management index (CMI). The soil samples were collected at five depths: 0-15, 15-30, 30-45, 45-60, and 60-75 cm. The TOC, POC, ROC, C NL and MBC in soils of agroforestry land use, on average, increased significantly by 26.3, 60.1, 27.1, 46.4 and 34 %, respectively in relative to control plot. However, the AFS consisting A. nepalensis recorded the highest mean SOC stocks (60.2 Mg ha -1 ), TOC (3.60 g 100 g -1 ), POC (5.42 g kg -1 ), ROC (10.16 g kg -1 ) and MBC (548 mg kg -1 ) than other AFSs. Furthermore, the CMI was highest under A. nepalensis (129.6) followed by M. oblonga (119.4), whereas P. kesiya showed the lowest value (91.1). The SOC stocks and fractions were, on average, 35.3 and 70 %, respectively higher in upper soil layer (0-15 cm) compared to subsurface soil layers (15-75 cm) in all the AFSs. The strong and positive correlation (P \ 0.05) between labile soil carbon fractions with TOC (r = 0.680** for POC; r = 0.683** for ROC and r = 0.758** for MBC) indicates that the changes in TOC content of soils is mainly influenced by the labile C pools and are the sensitive indicators of soil quality improvements. The AFSs, A. nepalensis in particular, can, therefore, be recommended as an alternative soil management strategy for food production, and for the maintenance of soil quality and agricultural sustainability

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Section: Microbial Biomass Carbon (Mbc) and Microbial Quotient (Qmic)mentioning

confidence: 99%

Assessment of soil organic carbon stocks and fractions under different agroforestry systems in subtropical hill agroecosystems of north-east India

et al. 2015

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“…Exemplos mais práticos de seleção de frações desta microbiota adaptadas a diferentes condições ambientais podem ser observados na agricultura em geral. O metabolismo microbiano do solo é amplamente alterado em função das condições impostas por sistemas de manejo (conservacionista ou convencional) (NOGUEIRA et al, 2014;BINI et al, 2014;SANTOS et al, 2015,), uso de resíduos na agricultura (chorume, lodo de esgoto, vinhaça, agroquímicos) (CARDOSO et al, , 2013SANTOS et al, 2013;NAKATANI et al, 2011;MARTINEZ et al 2010) e mudanças no uso da terra (BINI et al, 2013c;FAGOTTI et al, 2012). Especificamente, esses procedimentos adotados modificam alguns parâmetros do solo, como potencial redox, temperatura, tipo de substrato orgânico (matéria orgânica), pH e umidade.…”

Section: A Moldagem Do Metabolismo Microbiano Pela Atividade Agrícola...unclassified

Microbiologia do solo

Cardoso

Andreote

2020

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“…The main problems resulting from double cropping include increased incidence and resistance of pests and diseases 3 , weed infestation 4 , reduced soil fertility, especially of organic matter 5 , 6 , soil compaction 7 and soil loss due to water erosion 8 . In addition, climate change, together with droughts and abrupt temperature changes, has increased the production risks in double-crop systems 9 , 10 , as they become less resistant to environmental shocks and more susceptible to production losses.…”

Section: Introductionmentioning

confidence: 99%

The diversification of species in crop rotation increases the profitability of grain production systems

Volsi

Higashi

Bordin

et al. 2022

Sci Rep

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Crop rotation with species diversification contributes to the control of pests, diseases and weeds and improves soil fertility and conservation, which can lead to increased profitability in grain production systems. The objectives of this study were to determine whether grain production systems that employ crop rotation with species diversification are more productive and profitable than double-cropping rotations without diversification and to analyze the revenues and production costs of these cropping systems. An experiment was conducted in a region with subtropical climate between the crop years of 2014–2015 and 2019–2020. The experiment consisted of a randomized block design with six treatments and four replicates. The treatments consisted of six grain production systems, including five rotations with varied levels of species diversification and a corn–soybean rotation without species diversification, all under no-tillage. Productivity, revenue, production cost and profit indicators were analyzed. Productivity was compared by Duncan’s test (p ≤ 0.05). The grain production systems with species diversification showed better productivity and profitability than the corn–soybean system. The profit of the systems with species diversification was on average 37% higher than that of the system with corn–soybean rotation. In summary, grain production systems that employ crop rotation with species diversification showed higher productivity and profitability than the corn–soybean rotation without species diversification.

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Indicators of soil quality in the implantation of no-till system with winter crops

Cited by 4 publications

References 28 publications

Assessment of soil organic carbon stocks and fractions under different agroforestry systems in subtropical hill agroecosystems of north-east India

Assessment of soil organic carbon stocks and fractions under different agroforestry systems in subtropical hill agroecosystems of north-east India

Microbiologia do solo

The diversification of species in crop rotation increases the profitability of grain production systems

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