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Lehmann, Johannes; Cravo, M. da S.; Macêdo, J. L. V. de; Moreira, Adônis; Schroth, Götz

doi:10.1023/a:1013320721048

Cited by 31 publications

(13 citation statements)

References 26 publications

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“…Soybean-based cropping systems usually had SMAF scores that fell between high and low values without being significantly different from either. Previously, addition of perennial crops increased N (Trifolium repens L.) (Bergkvist et al, 2003) and P (various crops) (Lehmann et al, 2001) availability; increased SOC, MBC, soil mesofauna population and structure (mixed perennial native and non-native species) (DuPont et al, 2014); and increased soil protein and aggregate stability (Agropyron cristatum [L.] Gaertn.) (Wright and Anderson, 2000).…”

Section: Discussionmentioning

confidence: 99%

Crop, Tillage, and Landscape Effects on Near‐Surface Soil Quality Indices in Indiana

Hammac

Stott

Karlen

et al. 2016

Soil Science Soc of Amer J

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Soil quality is a critical link between land management and water quality. We aimed to assess soil quality within the Cedar Creek Watershed, a pothole-dominated subwatershed within the St. Joseph River watershed that drains into the Western Lake Erie Basin in northeastern Indiana. The Soil Management Assessment framework (SMAf) with 10 soil quality indicators was used to assess inherent and dynamic soil and environmental characteristics across crop rotations, tillage practices, and landscape positions. Surface physical, chemical, and nutrient component indices were high, averaging 90, 93, and 98% of the optimum, respectively. Surface biology had the lowest component score, averaging 69% of the optimum. Crop rotation, tillage, and landscape position effects were assessed using ANOVA. Crop selection had a greater impact on soil quality than tillage, with perennial grass systems having higher values than corn (Zea mays L.) or soybean [Glycine max (L.) Merr.]. furthermore, soybean rotations often scored higher than corn rotations. uncultivated perennial grass systems had higher overall soil quality index (SQI) values and physical, chemical, and biological component values than no-till or chisel-disk systems. Chisel-disk effects on overall and component SQI values were generally not significantly different from no-till management except for a few physical indicators. Toe-slopes had higher physical, biological, and overall SQI values than summit positions but toe-slope values were not significantly different from those of mid-slope positions. This work highlights the positive effects of perennial grass systems, the negative effects of corn-based systems, and the neutral effects of tillage on soil quality.

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Section: Discussionmentioning

confidence: 99%

Crop, Tillage, and Landscape Effects on Near‐Surface Soil Quality Indices in Indiana

Hammac

Stott

Karlen

et al. 2016

Soil Science Soc of Amer J

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“…Pandey and Venkatesh (2007) found that homegarden produced 7.3 t ha −1 yr −1 litter that contained 6.4 kg ha −1 yr −1 P. The values were 4.9 t ha −1 yr −1 and 1.8 kg ha −1 yr −1 in the moist-evergreen forest, and 6.9 t ha −1 yr −1 and 2.8 kg ha −1 yr −1 in semi-evergreen forest. Trees are reported to increase plant-available soil P pool, but the amount of increase depends upon quality as well as quantity of organic material (litter) (Lehmann et al 2001). Litter in the homegarden contained more P probably due to greater contribution by the fruit trees, particularly the Syzyzium species, whose fruits homegardeners do not eat perhaps due to its wild nature.…”

Section: Discussionmentioning

confidence: 99%

“…Litter in the homegarden contained more P probably due to greater contribution by the fruit trees, particularly the Syzyzium species, whose fruits homegardeners do not eat perhaps due to its wild nature. Fruit trees are reported to invest more P resource into their fruits than the other tree crops (Lehmann et al 2001). Greater proportion of wood mass in the forests litters than homegarden could be another reason for the higher P in the homegarden soils.…”

Section: Discussionmentioning

confidence: 99%

“…The affinity of iron oxides and hydroxides for phosphorus (P) decreases availability of phosphorus to plants in acidic, highly weathered soils in humid tropics (Vitousek 1984;Jordan 1985;Herbert and Fownes 1995;Noemi et al 2006). Nevertheless, tall trees grow in rainforests and vigorous growth occurs in herbaceous vegetation during wet season in humid tropics (Pandey and Venkatesh 2007).…”

Section: Introductionmentioning

confidence: 99%

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Plant available phosphorus in homegarden and native forest soils under high rainfall in an equatorial humid tropics

Pandey

Srivastava

2008

Plant Soil

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Though the affinity of iron oxides and hydroxides for phosphorus (P) is thought to limit growth and productivity of plants on iron-rich acidic soils in humid tropical climate, tall trees are found in tropical rainforests, and vigorous growth occurs in herbaceous vegetation in the humid tropical climate of the Andamans. Our study reports how high rainfall influences Bray and Kurtz P-1 extractable P, water filled pore space (WFPS), microbial biomass carbon (MB-C) and phosphorus (MB-P) in the gravelly-sandy-loamy soils in three major land use systems: moist-evergreen forest, semi-evergreen forest and homegarden, in the equatorial humid tropical climate of South Andaman island of India. In addition, an ex-situ experiment investigated how labile carbon (glucose) under different soil-water regimes [25% field capacity (FC) and 100% FC] affected the P in the soils under the land use systems. WFPS, across the land use systems, was more than two times higher during the high rainfall than dry spell (72-80 hr after the high rainfall). The extractable P, across the land use systems, increased about 5 to 6 fold during the high rainfall than dry spell. The increase was the highest in the homegarden and lowest in moist-evergreen forest. The extractable P was positively correlated with the WFPS. MB-C and MB-P were lower during the high rainfall than dry spell in all the land use systems. In the ex-situ experiment, the extractable P increased 1.4 to 1.7 fold more in water (100% FC) + glucose than water (100% FC) alone treatment. Water at 25% FC did not increase the extractable P in the soils under all the land use systems. After cessation of the high rainfall, WFPS declined quickly within 2-hr in the upper layer (0-5 cm) of the soils. These indicate that the high rainfall together with labile carbon increases the extractable P through anaerobiosis, whereas, quick decline in the WFPS (0-5 cm) following cessation of the high rainfall helps its uptake by plants and microflora.

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“…Perennialization can improve P availability and recycling by reducing P losses and increasing the presence of plant-available P (Patty et al, 1997;Lehmann et al, 2001;Crews and Brookes, 2014). There are many different mechanisms by which this occurs.…”

Section: Phosphorus Availability and Retentionmentioning

confidence: 99%

Restoring Soil Fertility on Degraded Lands to Meet Food, Fuel, and Climate Security Needs via Perennialization

Mosier

Córdova

Robertson

2021

Front. Sustain. Food Syst.

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A continuously growing pressure to increase food, fiber, and fuel production to meet worldwide demand and achieve zero hunger has put severe pressure on soil resources. Abandoned, degraded, and marginal lands with significant agricultural constraints—many still used for agricultural production—result from inappropriately intensive management, insufficient attention to soil conservation, and climate change. Continued use for agricultural production will often require ever more external inputs such as fertilizers and herbicides, further exacerbating soil degradation and impeding nutrient recycling and retention. Growing evidence suggests that degraded lands have a large potential for restoration, perhaps most effectively via perennial cropping systems that can simultaneously provide additional ecosystem services. Here we synthesize the advantages of and potentials for using perennial vegetation to restore soil fertility on degraded croplands, by summarizing the principal mechanisms underpinning soil carbon stabilization and nitrogen and phosphorus availability and retention. We illustrate restoration potentials with example systems that deliver climate mitigation (cellulosic bioenergy), animal production (intensive rotational grazing), and biodiversity conservation (natural ecological succession). Perennialization has substantial promise for restoring fertility to degraded croplands, helping to meet future food security needs.

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Cited by 31 publications

References 26 publications

Crop, Tillage, and Landscape Effects on Near‐Surface Soil Quality Indices in Indiana

Crop, Tillage, and Landscape Effects on Near‐Surface Soil Quality Indices in Indiana

Plant available phosphorus in homegarden and native forest soils under high rainfall in an equatorial humid tropics

Restoring Soil Fertility on Degraded Lands to Meet Food, Fuel, and Climate Security Needs via Perennialization

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