scispace - formally typeset
Search or ask a question
Topic

Field capacity

About: Field capacity is a research topic. Over the lifetime, 6776 publications have been published within this topic receiving 165134 citations.


Papers
More filters
Book
01 Jan 1998
TL;DR: In this article, the authors present a basic relationship between water and soil properties, including the properties of water in relation to porous media, properties of soil structure and aggregation, and the potential of Soil Water.
Abstract: Basic Relationships: General Physical Characteristics of Soils. Properties of Water in Relation to Porous Media. The Solid Phase: Particle Sizes and Specific Surface. Nature and Behavior of Clay. Soil Structure and Aggregation. The Liquid Phase: Content and Potential of Soil Water. Flow of Water in Saturated Soil. Flow of Water in Unsaturated Soil. Movement of Solutes and Soil Salinity. The Gaseous Phase: Content and Composition of Soil Air. Movement and Exchange of Gases in the Soil Composite Phenomena: Soil Temperature and Heat Flow. Soil Dynamics: Stress, Strain, and Strength. The Field Water Cycle: Entry of Water into Soil. Surface Runoff and Water Erosion. Redistribution of Water in Soil. Groundwater Drainage and Pollution. Evaporation From Bare Soil and Wind Erosion. Soil-Plant-Water Relations: Uptake of Soil Moisture by Plants. Water Balance and Energy Balance in The Field. Irrigation and Water-Use Efficiency. Appendices: Spatial Variability. Applications of Soil Physics to Remediation of Hazardous Waste Sites. Representing the Land Surface in Global Climate Models. Bibliography. Index.

2,194 citations

Journal ArticleDOI
TL;DR: In this article, a pot trial was carried out to investigate the effect of biochar produced from greenwaste by pyrolysis on the yield of radish and the soil quality of an Alfisol.
Abstract: A pot trial was carried out to investigate the effect of biochar produced from greenwaste by pyrolysis on the yield of radish (Raphanus sativus var. Long Scarlet) and the soil quality of an Alfisol. Three rates of biochar (10, 50 and 100 t/ha) with and without additional nitrogen application (100 kg N/ha) were investigated. The soil used in the pot trial was a hardsetting Alfisol (Chromosol) (0–0.1 m) with a long history of cropping. In the absence of N fertiliser, application of biochar to the soil did not increase radish yield even at the highest rate of 100 t/ha. However, a significant biochar × nitrogen fertiliser interaction was observed, in that higher yield increases were observed with increasing rates of biochar application in the presence of N fertiliser, highlighting the role of biochar in improving N fertiliser use efficiency of the plant. For example, additional increase in DM of radish in the presence of N fertiliser varied from 95% in the nil biochar control to 266% in the 100 t/ha biochar-amended soils. A slight but significant reduction in dry matter production of radish was observed when biochar was applied at 10 t/ha but the cause is unclear and requires further investigation. Significant changes in soil quality including increases in pH, organic carbon, and exchangeable cations as well as reduction in tensile strength were observed at higher rates of biochar application (>50 t/ha). Particularly interesting are the improvements in soil physical properties of this hardsetting soil in terms of reduction in tensile strength and increases in field capacity.

1,682 citations

Book
14 Mar 1982
TL;DR: In this article, the task of Soil Physics is addressed and the basic relationships of soil physics are discussed, including texture, particle size distribution, specific surface, and specific surface properties.
Abstract: Basic Relationships. The task of Soil Physics. General Physical Characteristics of Soils. The Solid Phase. Texture, Particle Size Distribution, and Specific Surface. Soil Structure and Aggregation. The Liquid Phase. Soil Water: Content and Potential. Flow of Water in Saturated Soil. Flow of Water in Unsaturated Soil. The Gaseous Phase. Soil Air and Aeration. Composite Properties and Behavior. Soil Temperature and Hear Flow. Soil Compaction and Consolidation. Tillage and Soil Structure Management. The Field--Water Cycle and Its Management. Infiltration and Surface Runoff. Internal Drainage and Redistribution Following Infiltration. Groundwater Drainage. Evaporation from Bare-Surface Soils. Uptake of Soil Moisture by Plants. Water Balance and Energy Balance in the Field. Bibliography. Index.

1,358 citations

Journal ArticleDOI
TL;DR: In this paper, the potential of using ERS scatterometer data for soil moisture monitoring over the Ukraine is investigated and a simple method is developed to relate the surface estimates with the profile soil moisture content.

1,072 citations

Journal ArticleDOI
TL;DR: In this article, a simple and convenient HCl-fumigation method to remove inorganic carbonates from soil was proposed, where soil samples are weighed in Ag-foil capsules, arranged on a microtiter plate, wetted with water to approximately field capacity, and placed in a desiccator containing a beaker with concentrated 12 M HCl.
Abstract: The use of 13 C natural abundance (δ 13 C) to follow C input to soil has gained widespread acceptance. However, inorganic C present in the soil as carbonates will interfere with the measurement of soil organic 13 C unless removed or excluded from measurement. We report a simple and convenient HCl-fumigation method to remove inorganic C from soil. Soil samples are weighed in Ag-foil capsules, arranged on a microtiter plate, wetted with water to approximately field capacity, and placed in a desiccator containing a beaker with concentrated (12 M) HCl. The carbonates are released as CO 2 by the acid treatment in 6 to 8 h. The soil samples are then dried at 60°C prior to isotope determination. The advantages of the HCl-fumigation method to remove inorganic C from the soil are that: (i) no water soluble C will be lost from the soil; (ii) a large number of samples can be processed simultaneously; (iii) the removal of inorganic C is rapid and complete; and (iv) the method could also be used to determine both organic and inorganic C content in the soil. A potential disadvantage, however, is that the HCl fumigation changed the 15 N natural abundance of soil N.

999 citations


Network Information
Related Topics (5)
Soil water
97.8K papers, 2.9M citations
91% related
Soil organic matter
39.8K papers, 1.5M citations
91% related
Water content
49.8K papers, 1.1M citations
87% related
Surface runoff
45.1K papers, 1.1M citations
85% related
Organic matter
45.5K papers, 1.6M citations
81% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202358
2022110
2021182
2020198
2019199
2018217