Monitoring Changes in the Chemical Properties of an Oxisol Under Long-Term No-Tillage Management in Subtropical Brazil

Guimarães, M. F.; Fonseca, Inês Cristina de Batista; Brossard, Michel; Portella, Cibele M. R.; Brito, Osmar Rodrigues; Ritchie, Jerry C.

doi:10.1097/ss.0b013e31817739fb

Cited by 3 publications

(4 citation statements)

References 18 publications

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“…No influence of P application on root length of corn was found in the layers 10-20, 20-30, 30-40 and 40-50 cm (Figure 1). The lack of response to P levels in the deeper layers demonstrates the low mobility of phosphate ions in the soil profile, because of its strong adsorption to clay particles (Guimarães et al, 2008).…”

Section: Resultsmentioning

confidence: 99%

No-till corn performance in response to P and fertilization modes

Sá

Briedis

Ferreira³

2013

Rev. Ceres

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No-tillage systems provide soil changes that affect nutrient dynamics, hence, changing rates and forms of fertilizer application. This study aimed to evaluate the effect of phosphorus (P) and modes of nitrogen (N) and P application in corn under long-term no-tillage in a clayey Oxisol. Two experiments were carried out in the same experimental area and in the same year, in a randomized blocks design with four replications. In experiment I, the treatments consisted of five doses of phosphorus (0, 40, 80, 120 and 160 kg ha-1 of P2O5) applied in the sowing furrow. In experiment II, the treatments consisted of the N and P application modes (topdressing, in the sowing furrow and control - without N and P). Experiment I evaluated the root length, P uptake and grain yield and, the Experiment II, the firing height and yield. The P rates provided linear increases in root length in the 0-10 cm layer, P uptake and grain production. The different modes of application provided differences in the firing height and corn yield. The control treatment (0 kg ha-1 of N and P) provided the highest firing height, superior than those of topdressing and application in the furrow, which were not significantly different. The topdress application of N and P provided an increase in corn yield that exceeded 16 and 42% of the application in the furrow and the control, respectively. Thus, the results confirmed that increasing rates of P2O5, in soil with high initial P content, influence positively corn production factors, but with little significant responses, and the topdress application of N and P on soil with high P content, without water restriction, provided increased grain yield in relation to the application in the furrow.

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Section: Resultsmentioning

confidence: 99%

No-till corn performance in response to P and fertilization modes

Sá

Briedis

Ferreira³

2013

Rev. Ceres

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“…Numerous studies have described the spatial distribution of soil properties and provide a theoretical basis for further improving regional soil management policies according to their findings of studies, especially soil pH, soil organic matter (OM), soil available potassium (AK), soil available phosphorus (AP), and soil total nitrogen (TN) [14]. For example, Bertin Takoutsing et al (2017) [15] provided sensible advice for soil management in the Cameroon region by analyzing the spatial correlation of soil properties such as soil organic matter, soil nitrogen, soil pH, and soil phosphorus; Guimaraes at al. (2008) [16] measured Organic C, exchangeable calcium, magnesium, potassium, extractable phosphate, and soil pH to assess annual changes in soil chemical properties.…”

Section: Introductionmentioning

confidence: 99%

“…For example, Bertin Takoutsing et al (2017) [15] provided sensible advice for soil management in the Cameroon region by analyzing the spatial correlation of soil properties such as soil organic matter, soil nitrogen, soil pH, and soil phosphorus; Guimaraes at al. (2008) [16] measured Organic C, exchangeable calcium, magnesium, potassium, extractable phosphate, and soil pH to assess annual changes in soil chemical properties. Although other studies have explored the drivers of change in soil properties using correlation analysis, principal component analysis, and regression analysis based on spatial and temporal patterns of soils, the spatial heterogeneity of regional soil properties has been ignored [17,18].…”

Section: Introductionmentioning

confidence: 99%

Temporal and Spatial Changes and Driving Forces of Soil Properties in Subtropical Mountainous Areas from 2017 to 2020: A Case Study of Baokang County, Hubei Province, China

Yong

et al. 2022

Land

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Understanding the mechanism of regional soil chemical property changes is crucial for guiding precise farming and further alleviating poverty in mountainous areas. Our aims were to monitor the temporal and spatial changes in the soil chemical property in subtropical mountainous areas and explore the effect of human activities, soil and topographic factors on the changes. In this study, a total of 332 soil samples were collected from 2017 to 2020 in Baokang County, subtropical mountainous area in central China. We analyzed the soil pH, soil organic matter (OM), soil available phosphorus (AP), soil available potassium (AK), soil total nitrogen (TN) and used Kriging interpolation to draw the map of spatial distribution of soil chemical properties in Baokang County from 2017 to 2020. The geographical detector was used to explore the driving forces of soil chemical property change over the years of research. The results show that: 1) from 2017 to 2020, soil pH, soil OM, and soil AP in Baokang County was increasing from north to south and the value of three chemical properties showed a slight decreasing trend. Soil AK showed an increasing trend, with higher values in Longping and Xiema towns and relatively lower values in Guoduwan, and soil TN was at a high level with large spatial variation. 2) The human activities, soil and topographic factors all affect soil properties in Baokang. In human activities, the cropping system and crop yield were strong explanatory factors for the changes in soil chemical properties, especially for AK and AP. The q values of all the indicators in the soil factor were relatively high, which displays that all indicators we selected affected the changes in soil properties. Soil OM and soil TN were the factors that affected each other with the greatest driving force, as were soil AP and soil AK. The driving force of DEM was greater among the topographic factors (slope, topographic relief and DEM), and its effect on five soil chemical properties showed that AK>AP>OM>TN>pH. 3) The interactions between each two factors showed a two-factor-enhanced relation, indicating that multiple factors form the soil properties of Baokang County. The findings of this study offer some scientific basis and suggestions for local government to control soil quality and economic development.

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“…The legume family has been widely used as green manure due to the capacity to fix N 2 , the high contents of N-containing organic compounds and the generally fairly deep, well-branched root system that can reach the deeper soil layers (Cardoso et al, 2006;Guimarães et al, 2008). Thus, in the systemic and holistic context of assessing the effects of livestock farming, the diversification of root systems plays a fundamental role.…”

Section: Introductionmentioning

confidence: 99%

Morphostructural characterization of soil conventionally tilled with mechanized and animal traction with and without cover crop

Ralisch

Almeida

Silva

et al. 2010

Rev. Bras. Ciênc. Solo

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SUMMARYThe structural stability and restructuring ability of a soil are related to the methods of crop management and soil preparation. A recommended strategy to reduce the effects of soil preparation is to use crop rotation and cover crops that help conserve and restore the soil structure. The aim of this study was to evaluate and quantify the homogeneous morphological units in soil under conventional mechanized tillage and animal traction, as well as to assess the effect on the soil structure of intercropping with jack bean (Canavalia ensiformis L.). Profiles were analyzed in April of 2006, in five counties in the Southern-Central region of Paraná State (Brazil), on family farms producing maize (Zea mays L.), sometimes intercropped with jack bean. The current structures in the crop profile were analyzed using Geographic Information Systems (GIS) and subsequently principal component analysis (PCA) to generate statistics. Morphostructural soil analysis showed a predominance of compact units in areas of high-intensity cultivation under mechanized traction. The cover crop did not improve the structure of the soil with low porosity and compact units that hamper the root system growth. In areas exposed to animal traction, a predominance of cracked units was observed, where roots grew around the clods and along the gaps between them.Index terms: soil tillage, cultural profile, morphological homogeneous units, structural recovering.(

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Monitoring Changes in the Chemical Properties of an Oxisol Under Long-Term No-Tillage Management in Subtropical Brazil

Cited by 3 publications

References 18 publications

No-till corn performance in response to P and fertilization modes

No-till corn performance in response to P and fertilization modes

Temporal and Spatial Changes and Driving Forces of Soil Properties in Subtropical Mountainous Areas from 2017 to 2020: A Case Study of Baokang County, Hubei Province, China

Morphostructural characterization of soil conventionally tilled with mechanized and animal traction with and without cover crop

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