Effects of soil aeration, legume residue, and soil texture on transformations of macro- and micronutrients in soils. [Vicia villosa]

Journal Article · Sat Feb 01 00:00:00 EST 1992 · Soil Science; (United States)

DOI:https://doi.org/10.1097/00010694-199202000-00003· OSTI ID:7115001

Walters, D T; Doran, J W ^[1]; Aulakh, M S ^[2]

---

1. Univ. of Nebraska, Lincoln (United States)
2. Punjab Agricultural Univ. (India)

Soil aeration is an important factor controlling microbial activity, nutrient availability, and plant root growth. The authors investigated the effect of hairy vetch (Vicia villosa) addition to well aerated (60% water-filled pore space (WFPS)) and poorly aerated (90% WFPS) soils of varying texture on transformations of C, N, P, K, Ca, Mg, S, Zn, Mn, Fe, and Cu for a 30-d period. The results of this study imply that incorporation of easily decomposable residue may supply substantial amounts of nutrients to growing plants. Where soils remain wet for > 10 d, residues may create intensive reducing conditions and a several fold increase in available Fe, Mn, Cu, and P. Conversely, DTPA extractable Fe, Mn, and Cu can vary greatly within a few weeks depending on soil aeration status, residue management, time of sampling, and soil texture and may lead to erroneous indices of nutrient availability to plants.

• OSTI ID: 7115001
• Journal Information: Soil Science; (United States), Vol. 153:2; ISSN 0038-075X
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
LEGUMINOSAE
DECOMPOSITION
NUTRIENTS
BIOLOGICAL AVAILABILITY
SOILS
AERATION
AGRICULTURAL WASTES
CALCIUM
CARBON
COPPER
IRON
MAGNESIUM
MANGANESE
NITROGEN
PHOSPHORUS
PHYSICAL PROPERTIES
PLANT GROWTH
POTASSIUM
RESIDUES
SULFUR
TEXTURE
ZINC
ALKALI METALS
ALKALINE EARTH METALS
CHEMICAL REACTIONS
ELEMENTS
GROWTH
MAGNOLIOPHYTA
MAGNOLIOPSIDA
METALS
NONMETALS
ORGANIC WASTES
PLANTS
TRANSITION ELEMENTS
WASTES
540210* - Environment
Terrestrial- Basic Studies- (1990-)