Physical Properties of Soils Affected by the Use of Agricultural Waste

Candel, María Belén Almendro; Lucas, Ignacio Gómez; Pedreño, José Navarro; Zorpas, Antonis A.

doi:10.5772/intechopen.77993

Cited by 43 publications

(34 citation statements)

References 79 publications

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“…Furthermore, catch crop biomass beneficially affected soil enzymes, whose activity is positively correlated with soil organic matter content. After catch crops are introduced into agronomic practices, the soil compaction decreases by about 18%-20% (in the 5-10 cm layer) [6,31]. Organic matter increases soil porosity and promotes macropore formation.…”

Section: Discussionmentioning

confidence: 99%

“…Succession planting (including cover cropping) generally modifies to a small extent soil physical properties. Soil physical properties are of great importance for agricultural production and sustainable use of agricultural land [6] because they are fundamental for some essential chemical and enzymatic processes occurring in soil or can even be a determining factor in this respect. For instance, water infiltration, soil aeration, and root penetration are all determined by soil structure [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…Soil physical properties are of great importance for agricultural production and sustainable use of agricultural land [6] because they are fundamental for some essential chemical and enzymatic processes occurring in soil or can even be a determining factor in this respect. For instance, water infiltration, soil aeration, and root penetration are all determined by soil structure [6,7]. Catch crops (organic matter) incorporated into soil increase soil C and N content and soil moisture content [8].…”

Section: Introductionmentioning

confidence: 99%

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The Effects of Catch Crops and Tillage Systems on Selected Physical Properties and Enzymatic Activity of Loess Soil in a Spring Wheat Monoculture

2020

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This study was aimed at comparing physical soil quality parameters and soil enzymatic activity in a three-year spring wheat monoculture affected by the incorporation of biomass of selected catch crops into the soil using two systems of tillage (conventional plough tillage and conservation tillage). We tested the suitability of the following catch crop plants: white mustard, lacy phacelia, and mixed legumes (faba bean + spring vetch) and compared these to the control treatment. This research was carried out in the period 2014–2016 in Czesławice (central Lublin region, Poland). Catch crops promoted improved soil structure, soil particle-size distribution, soil bulk density, and soil moisture content. Tillage systems had a smaller impact on the soil physical parameters. Plough tillage contributed to improved soil moisture content in a deeper layer (15–20 cm). On the other hand, the above-mentioned tillage system influenced adversely soil compaction and bulk density. Catch crops caused an improvement in the soil particle size distribution, resulting in a higher percentage of the finer soil fractions. Moreover, the catch crops positively affected soil bulk density and soil compaction. The study has proven that enzymatic tests are good indicators to discriminate between soil sites under study in dependence on the catch crop and tillage system. Conservation tillage significantly stimulated the activities of the studied enzymes, especially in the topsoil layers. A particularly wide range of dehydrogenase and urease activity was obtained in the soil sown with the white mustard catch crop. The other catch crops (lacy phacelia and faba bean + spring vetch) also stimulated enzymatic activity. The obtained results show the positive role of catch crops and conservation tillage in bringing about positive changes occurring in the soil environment.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Effects of Catch Crops and Tillage Systems on Selected Physical Properties and Enzymatic Activity of Loess Soil in a Spring Wheat Monoculture

2020

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“…Then K s can be estimated by fitting hydraulic conductivity and capillary potential data sets into Equation (2). By using this approach, we can only get a snapshot of the soil properties at one time instant, however, soil properties do slowly change over time due to agricultural activities [34]. While the experiments can be repeated to get parameter estimates at different times, it is very time consuming and expensive, especially when the investigated field is large and has various soil types over the field.…”

Section: System Description and Problem Formulationmentioning

confidence: 99%

Parameter and State Estimation of One-Dimensional Infiltration Processes: A Simultaneous Approach

et al. 2020

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The Richards equation plays an important role in the study of agro-hydrological systems. It models the water movement in soil in the vadose zone, which is driven by capillary and gravitational forces. Its states (capillary potential) and parameters (hydraulic conductivity, saturated and residual soil moistures and van Genuchten-Mualem parameters) are essential for the accuracy of mathematical modeling, yet difficult to obtain experimentally. In this work, an estimation approach is developed to estimate the parameters and states of Richards equation simultaneously. In the proposed approach, parameter identifiability and sensitivity analysis are used to determine the most important parameters for estimation purpose. Three common estimation schemes (extended Kalman filter, ensemble Kalman filter and moving horizon estimation) are investigated. The estimation performance is compared and analyzed based on extensive simulations.

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“…Soil acts as a biochemical reactor of organic matter and carbon store [18]. In fact, SOC usually comes from the turnover of plant and animal residues in natural ecosystems while in agricultural ecosystems, the addition of amendments and wastes is important [19]. For the reasons commented above and the complexity of the soils, understanding soil and plant interactions, soil-plant system, natural and agricultural systems, is basic to achieve the target of soil carbon accumulation.…”

Section: Introductionmentioning

confidence: 99%

The Increase of Soil Organic Matter Reduces Global Warming, Myth or Reality?

Pedreño¹,

Candel²,

Zorpas³

2020

Preprint

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The soil has lost organic matter in the past centuries. Adding organic matter to soils is one of the management practices applied to recover the levels of soil carbon of the past. Is it a good practice to reduce global warming? In fact, one of the practices promoted to combat climate change is increasing soil organic matter. However, the addition of organic residues to the soil could facilitate the liberation of CO2 and wastes could also have no positive effects on soil properties. In this sense, what it is important is: a) to know which is the expected effect of the organic matter added to the soil; b) how this application alters the soil processes; c) which are the management practices that should be applied; d) how much is the real amount of carbon sequester by the soil and; e) the balance at short and long period after the application of the organic matter. The adequate strategy should be to favour the increment of biologically stabilized soil organic matter considering medium and long time. However, it is necessary to adapt the strategies to the local environmental conditions.

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Physical Properties of Soils Affected by the Use of Agricultural Waste

Cited by 43 publications

References 79 publications

The Effects of Catch Crops and Tillage Systems on Selected Physical Properties and Enzymatic Activity of Loess Soil in a Spring Wheat Monoculture

The Effects of Catch Crops and Tillage Systems on Selected Physical Properties and Enzymatic Activity of Loess Soil in a Spring Wheat Monoculture

Parameter and State Estimation of One-Dimensional Infiltration Processes: A Simultaneous Approach

The Increase of Soil Organic Matter Reduces Global Warming, Myth or Reality?

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