calcareous soil

calcareous soil

(kălkâr`ēəs), soil formed largely by the weathering of calcareous rocks and fossil shell beds. Different varieties usually contain chalk, marl, and limestone and frequently a large amount of phosphates. They are often very fertile, as in the case of the buckshot soils of the S United States. Sometimes calcareous soils are flinty, thin, and dry. They often form a large part of the soil of deserts, which may prove very fertile when sufficient moisture for crops is applied.

calcareous soil

[kal′ker·ē·əs ′sȯil]
(geology)
A soil containing accumulations of calcium and magnesium carbonate.
References in periodicals archive ?
Heleborus niger really needs calcareous soil and was commonly sighted here - the H orientalis needs acidic soils.
4] applied to an alkaline calcareous soil under aerobic conditions at high (35[degrees]C) and moderately warm (25[degrees]C) temperatures.
These results indicate that reducing the rate of urea hydrolysis and inhibiting nitrification with combined use of agrotain, nitropyrin in an alkaline calcareous soil is important to reduce N losses and N2O emission, improve fertilizer use efficiency of applied urea with maximum bioavailability to plants thus increase the yield of Maize crop.
TABLE 4: Sodium (SAR) and potassium adsorption ratio (PAR), threshold concentration (TEC) and cation concentrations in applied water leading to a 15% reduction in the saturated hydraulic conductivity of surface and subsurface layers in a calcareous soil from the Riverina region of Australia [Table omitted]
Impact of rock materials and biofertilizations on P and K availability for maize (Zea Maize) under calcareous soil conditions.
Zinc deficiency is related to soil pH and its value is very low in calcareous soil having high pH (Alloway 2008; Alam et al.
The effectiveness of crushed ore colemanite as B source for rice crop under flooded calcareous soil was evaluated in a glass house study.
It grows on bare, calcareous soil or mixed with bryophytes.
Micronutrient fertilization in sugarcane: effect of zinc and boron in calcareous soil.
Glomus mosseae contributed from 16-25% of total Zn uptake by maize growth in calcareous soil and from 52-65% of total Cu uptake by clover plants grown in the same soil [38].
From the results of these experiments, it was noted that applying bagasse charcoal to calcareous soil on the island was effective in improving water availability to crops, enhancing crop yields, and reducing nitrate leaching.
The EPL thicknesses on calcareous soils appear to be somewhat higher than on non-calcareous soil types.