Influence of Sugarcane Cropping on the Quality of an Oxisol and an Inceptisol in Mauritius

Cheong, L. R. Ng; Kwong, K. F. Ng Kee; Koon, P.D. Ah; Preez, C. C. du

doi:10.1080/00103621003721403

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…The aggregate class > 2.00 mm in CTc4 and CTc8 showed a lower stability in the 0.00-0.05 m layer when compared to CT and, consequently, the aggregate class < 2.00 mm in CTc4 was inversely proportional when compared to the class > 2.00 m in the same layer (Table 2). Cheong et al (2010) observed that soil management carried out by using agricultural machinery and implements and the absence of cover crop cultivation provided a lower percentage of aggregates larger than 2 mm and WMD in the 0.05-0.10 m layer. According to Martins et al (2010), the absence of soil cover exposes aggregates to external disrupting forces such as rainfall and agricultural management.…”

Section: Discussionmentioning

confidence: 94%

“…In general, compaction process promotes an increased soil density and soil penetration resistance, reducing macroporosity, aeration, and infiltration and storage of water in the soil (Lipiec et al, 2012;Cortez et al, 2014;Deperon Júnior et al, 2016). However, the way and intensity of this process depend on soil type, management, and climate, reflecting mainly on soil water content (Cheong et al, 2010) since there are moisture bands that make the soil more or less susceptible to compaction (Michelon et al, 2009).…”

Section: Researchmentioning

confidence: 99%

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Changes in the physical properties of an Amazonian Inceptisol induced by tractor traffic

Gomes

Bergamin

Silva

et al. 2019

Chil. j. agric. res.

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With agricultural expansion in Amazonian regions, studies are needed to verify the effect of mechanization on the soils of the regions. This study aimed to assess soil physical attributes under different compaction conditions induced by tractor traffic on a soil of southern Amazonas State, Brazil. Treatments consisted of three compaction levels: conventional soil tillage without additional compaction (CT) and conventional soil tillage with additional compaction with four (CTc4) and eight tractor passes (CTc8). An intense increase in soil aggregate diameter was observed in the superficial soil layer (0.00-0.05 m) from four tractor passes, decreasing in the successive soil layers (0.05-0.20 m). Soil density increased up to a depth of 0.10 m. The reduced macroporosity and soil moisture on the soil surface (0.00-0.05 m) did not significantly alter soil microporosity in the different treatments. For the macroporosity, the 0.00-0.05 m layer was the most impaired, with a reduction of more than 50% for the treatments submitted to compaction (CTc4 and CTc8). The penetration resistance for the 0.00-0.05 m layer was increased by more than 150% between the treatment without compaction (CT = 0.88 MPa) and compaction (CTc4 = 2.25 MPa; CTc8 = 2.50 MPa). These results show a greater caution in the agricultural machinery management in Amazonian soils, which may be aggravated due to the intense water regime in the region.

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Section: Discussionmentioning

confidence: 94%

Section: Researchmentioning

confidence: 99%

Changes in the physical properties of an Amazonian Inceptisol induced by tractor traffic

Gomes

Bergamin

Silva

et al. 2019

Chil. j. agric. res.

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Impact of successive sugarcane harvests and trash management practices on soil microbiological properties

Pupin

Nahas

2011

Soil Res.

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Sugarcane culture is replanted after five–eight successive harvests and intensely fertilised and mechanised. The influence on bacteria (total, nitrifying, denitrifying), fungi, microbial biomass-C, and dynamic processes (respiratory activity, N mineralisation, potential nitrification, P-solubilising activity) and enzymatic activities (dehydrogenase, urease, phosphatase) was studied for six successive harvests of the crop. The straw of the second and third harvest was burned. Soil microbial counts and activities were reduced after successive harvests. Fungi counts, N mineralisation, potential nitrification, and the P-solubilising, urease, and phosphatase activities decreased gradually from the first harvest to the third, increased again after the fourth, and then decreased again. Total, nitrifying, and denitrifying bacteria and fungi counts decreased, on average, 55, 22, 17, and 77%, respectively, in the sixth harvest in relation to the first. Reductions also occurred in microbial biomass-C (43%), respiratory activity (39%), N mineralisation (35%), potential nitrification (40%), and P-solubilising activity (35%). Reductions were observed in dehydrogenase (58%) and urease (36%) activities, but not in phosphatase activity. Successive sugarcane harvests may significantly influence microbial populations and activities, with harmful consequences to the C, N, and P cycles, and may decrease crop productivity.

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Changes in the properties of Fijian Oxisols over 30 years of sugarcane cultivation

Morrison

Gawander

2016

Soil Res.

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Sugarcane production plateaued in Fiji at ~4 million tonnes annually (average ~55 t/ha) during the latter part of the 1980s but, in recent years, despite the continuing release of high yielding varieties, the total production has decreased to under 3 million tonnes (average ~45 t/ha). This study was initiated to study the changes in the properties of Oxisols following sugarcane cultivation to ascertain whether yield declines were due to degradation of soil biophysical and chemical properties. The study lasted from 1978 (when the soils were first cleared for agriculture) to 2009. Soil (0–15, 30–40 and 70–80 cm) properties including pH, organic carbon, cation exchange capacity, water retention, bulk density, phosphate retention and exchangeable bases were monitored. The observed topsoil changes could generally be related to changes in organic matter and associated ion exchange properties. The major changes occurred in the first three years after clearing, but some changes continued for many years. Subsoil samples (30–40 cm) showed an increase in organic carbon after cane cultivation, probably due to soil mixing during land preparation, organic matter movement during cropping and decay of sugarcane roots. At 70–80 cm, small but significant increases in organic carbon were observed along with small decreases in pH. Overall, these changes indicate that careful management of topsoils is essential for maintaining soil fertility and hence sugarcane productivity on these highly weathered soils.

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Influence of Sugarcane Cropping on the Quality of an Oxisol and an Inceptisol in Mauritius

Cited by 5 publications

References 11 publications

Changes in the physical properties of an Amazonian Inceptisol induced by tractor traffic

Changes in the physical properties of an Amazonian Inceptisol induced by tractor traffic

Impact of successive sugarcane harvests and trash management practices on soil microbiological properties

Changes in the properties of Fijian Oxisols over 30 years of sugarcane cultivation

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