{"type": "FeatureCollection", "features": [{"id": "10.1016/j.still.2007.06.008", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-29T16:17:13Z", "type": "Journal Article", "created": "2007-07-10", "title": "Improved Legume Tree Fallows And Tillage Effects On Structural Stability And Infiltration Rates Of A Kaolinitic Sandy Soil From Central Zimbabwe", "description": "Improved legume tree fallows have great potential to increase soil organic carbon (SOC), aggregate stability and soil infiltration rates during the fallowing phase. However, persistence of the residual effects of improved fallowing on SOC, aggregate stability and infiltration rates, under different tillage systems in Zimbabwe is not well documented. The relationships between SOC, aggregate stability and infiltration in fallow-maize rotation systems are also not well documented. We therefore evaluated effects of tillage on SOC. aggregate stability and infiltration rates of a kaolinitic sandy soil during the cropping phase of an improved fallow-maize rotation system. Plots that were under legume tree fallows (Sesbania sesban; Acacia angustissitna), natural fallow (NF) and under continuous maize during the previous 2 years were divided into conventional tillage (CT) and no-till (NT) subplots soon after fallow termination. and maize was cropped in all plots during the following two seasons. Aggregate stability was investigated using water stable macroaggregation index (I-ma) water dispersible clay (WDC) and using the mean weight diameter (MWD) after different wetting procedures. Infiltration rates were determined using simulated rainfall at intensity of 35 mm h(-1) on 1 m(2) Plots. Soil organic carbon was significantly higher (P <0.05) under fallows than continuous maize. For the 0-5 cm depth SOC was 11.0, 10.0, 9.4 and 6.6 g kg(-1) for A.angustissima, S. sesban, NF and continuous maize, respectively, at fallow termination. After 2 years of cropping SOC was 8.0. 7.0. 6.1 and 5.9 g kg(-1) under CT and 9.1 9.0, 8.0 and 6.0 g kg-1 under NT for A. angustissima, S. sesban, NF and continuous maize, respectively. Aggregate stability was significantly greater (P <0.05) under fallows than under continuous maize and also higher under NT than under CT. The macroaggregation index (I-ma) for the 0-5 cm depth was 466, 416, 515 and 301 for A. angustissima. S. sesban, NF and continuous maize, respectively at fallow termination, decreasing to 385, 274, 286 and 255 under CT and 438, 300. 325 and 270 under NT, for A. angustissima, S. sesban, NF and continuous maize, respectively, after 2 years of cropping. Percent WDC was also significantly lower (P <0.05) in fallows than in continuous maize, and for the 0-5 cm it was 11, 10, 8 and 17 for A. angustissima, S. sesban, NF and continuous maize, respectively at fallow termination. After 2 years of cropping WDC (%) was 12, 14 15 and 17 under CT and 10, 12, 12 and 16 under NT for A. angustissima, S. sesban, NF and continuous maize, respectively. MWD also showed significantly higher (P <0.05) aggregate stability in fallows than in continuous maize. Water infiltration rates were significantly greater under fallows than continuous maize but these declined significantly during the cropping phase in plots that had been fallowed. In October 2000, infiltration rates in the A. angustissitna and NF plots were above 35 mm h(-1) as no runoff was observed. Steady-state infiltration rates were 24 mm h-1 in S. sesban and 5 rum h-1 for continuous maize after 30 min of rainfall simulations. After 2 years of cropping infiltration rates remained above 35 mm h-1 in A. angustissima plots, but declined to 18 and 8 mm h(-1) for NF, CT and NT respectively and 12 rum h(-1) for S. sesban, CT and NT. It is concluded that legume tree fallows improved SOC, aggregate stability and infiltration rates, but these benefits accrued during fallowing dereased significantly after 2 years of cropping following the termination of fallows. The decrease in SOC and aggregate stability was higher under CT than NT. Coppicing fallows of A. angustissima were the best long-term fallow species when integrated with NT as improved soil physical properties were maintained beyond 2 years of post-fallow cropping. (c) 2007 Elsevier B.V. All rights reserved.", "keywords": ["2. Zero hunger", "crop-rotation", "water", "no-tillage", "04 agricultural and veterinary sciences", "15. Life on land", "maize", "aggregate-associated carbon", "6. Clean water", "conventional-tillage", "systems", "0401 agriculture", " forestry", " and fisheries", "physical-properties", "fertility management", "organic-matter"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2007.06.008"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2007.06.008", "name": "item", "description": "10.1016/j.still.2007.06.008", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2007.06.008"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-10-01T00:00:00Z"}}, {"id": "10.1016/j.still.2006.08.006", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-29T16:17:12Z", "type": "Journal Article", "created": "2006-09-27", "title": "Long-Term Impact Of Reduced Tillage And Residue Management On Soil Carbon Stabilization: Implications For Conservation Agriculture On Contrasting Soils", "description": "Residue retention and reduced tillage are both conservation agricultural management options that may enhance soil organic carbon (SOC) stabilization in tropical soils. Therefore, we evaluated the effects of long-term tillage and residue management on SOC dynamics in a Chromic Luvisol (red clay soil) and Areni-Gleyic Luvisol (sandy soil) in Zimbabwe. At the time of sampling the soils had been under conventional tillage (CT), mulch ripping (MR), clean ripping (CR) and tied ridging (TR) for 9 years. Soil was fully dispersed and separated into 212\u20132000 mm (coarse sand), 53\u2013212 mm (fine sand), 20\u201353 mm (coarse silt), 5\u201320 mm (fine silt) and 0\u20135 mm (clay) size fractions. The whole soil and size fractions were analyzed for C content. Conventional tillage treatments had the least amount of SOC, with 14.9 mg C g \ufffd 1 soil and 4.2 mg C g \ufffd 1 soil for the red clay and sandy soils, respectively. The highest SOC content was 6.8 mg C g \ufffd 1 soil in the sandy soil under MR, whereas for the red clay soil, TR had the highest SOC content of 20.4 mg C g \ufffd 1 soil. Organic C in the size fractions increased with decreasing size of the fractions. In both soils, the smallest response to management was observed in the clay size fractions, confirming that this size fraction is the most stable. The coarse sand-size fraction was most responsive to management in the sandy soil where MR had 42% more organic C than CR, suggesting that SOC contents of this fraction are predominantly controlled by amounts of C input. In contrast, the fine sand fraction was the most responsive fraction in the red clay soil with a 66% greater C content in the TR than CT. This result suggests that tillage disturbance is the dominant factor reducing C stabilization in a clayey soil, probably by reducing C stabilization within microaggregates. In conclusion, developing viable conservation agriculture practices to optimize SOC contents and long-term agroecosystem sustainability should prioritize the maintenance of C inputs (e.g. residue retention) to coarse textured soils, but should focus on the reduction of SOC decomposition (e.g. through reduced tillage) in fine textured soils. # 2006 Elsevier B.V. All rights reserved.", "keywords": ["organic-matter dynamics", "Soil management", "Conservation agriculture", "Residue management", "no-tillage", "continuous cultivation", "sudano-sahelian conditions", "loam soil", "Tropical agroecosystems", "Tillage", "Agricultural ecosystems", "conventional-tillage", "Field Scale", "Conservation tillage", "2. Zero hunger", "Tropical zones", "Soil organic matter", "microbial biomass", "Particulate organic matter (pom)", "Soil organic carbon", "04 agricultural and veterinary sciences", "15. Life on land", "6. Clean water", "crop residue", "fractions", "0401 agriculture", " forestry", " and fisheries", "manure application"]}, "links": [{"href": "https://doi.org/10.1016/j.still.2006.08.006"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20and%20Tillage%20Research", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.still.2006.08.006", "name": "item", "description": "10.1016/j.still.2006.08.006", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.still.2006.08.006"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2007-06-01T00:00:00Z"}}, {"id": "10.1080/00103624.2013.790406", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-29T16:18:14Z", "type": "Journal Article", "created": "2013-04-16", "title": "Influence Of Soil Management And Crop Rotation On Physical Properties In A Long-Term Experiment In Parana, Brazil", "description": "This work aims to evaluate the soil physical properties affected by cover crop rotation and soil management in a long-term experiment in southern Brazil. The experiment was established in 1986, with treatments combining six winter treatments and two tillage systems (conventional and no tillage). Bulk density, porosity, aggregate-size class distribution, and organic carbon content of the aggregates were determined at six depths. Bulk density was not affected by tillage systems and winter treatments. The soil disturbance by plowing enhanced the macroporosity, decreased the microporosity, and promoted the formation of smaller aggregate size, in comparison to no tillage. Apart from the soil management, all winter species increased the greater aggregate-size classes, mean weight diameter, geometric mean diameter, and aggregate stability index compared to the fallow treatments. At the no-till treatments, the greater part of sequestered carbon into the soil was stored into the lower and bigger soil aggregates.", "keywords": ["STABILIZATION", "[SDV]Life Sciences [q-bio]", "cover crop", "AGGREGATE", "PARTICULATE", "ORGANIC-MATTER DYNAMICS", "630", "CARBON", "soil organic matter", "Farm nutrient management", "CONSERVATION TILLAGE", "Conservation tillage", "2. Zero hunger", "CULTIVATED SOILS", "04 agricultural and veterinary sciences", "15. Life on land", "sustainability", "Soil tillage", "6. Clean water", "[SDV] Life Sciences [q-bio]", "Crop combinations and interactions", "subtropical soil", "0401 agriculture", " forestry", " and fisheries", "NO-TILLAGE", "CONVENTIONAL-TILLAGE", "FRACTIONS"]}, "links": [{"href": "https://doi.org/10.1080/00103624.2013.790406"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Communications%20in%20Soil%20Science%20and%20Plant%20Analysis", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1080/00103624.2013.790406", "name": "item", "description": "10.1080/00103624.2013.790406", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1080/00103624.2013.790406"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2013-07-20T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=conventional-tillage&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=conventional-tillage&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=conventional-tillage&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=conventional-tillage&offset=3", "hreflang": "en-US"}], "numberMatched": 3, "numberReturned": 3, "distributedFeatures": [], "timeStamp": "2026-05-30T09:10:29.533175Z"}