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You searched for: Journal name Soil Science Society of America journal Remove constraint Journal name: Soil Science Society of America journal Publication year rev 8028-1972 Remove constraint Publication year rev: 8028-1972 Source 1972 v.36 no.1 Remove constraint Source: 1972 v.36 no.1
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1. A Comparison of a Large-Seeded (NC2) and a Small-Seeded (Starr) Peanut (Arachis hypogaea L.) Cultivar as Affected by Levels of Calcium Added to the Fruit Zone

Author:
T. E. Slack; L. G. Morrill
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 87-90
ISSN:
0361-5995
Subject:
Arachis hypogaea; calcium; containers; cultivars; fruiting; fruits; greenhouse experimentation; peanuts; rooting; sand; seed development; seeds
Abstract:
... Several greenhouse experiments were conducted to compare various Ca treatments on selected vegetative and reproductive characteristics of Starr and NC2 peanuts. Calcium and K uptake and distribution characteristics in Starr and NC2 peanut plant parts were studied also. Starr and NC2 peanuts were grown in sand cultures with separated rooting and fruiting containers for direct comparisons. Starr and ...
DOI:
10.2136/sssaj1972.03615995003600010020x

2. Adsorption of Ametryne and Atrazine on an Oxisol, Montmorillonite, and Charcoal in Relation to pH and Solubility Effects

Author:
V. K. Yamane; R. E. Green
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 58-64
ISSN:
0361-5995
Subject:
Oxisols; adsorbents; adsorption; ametryn; atrazine; charcoal; montmorillonite; protonation; soil pH; solubility; sorption isotherms; temperature
Abstract:
... Adsorption of ametryne exceeded that of atrazine on soil and montmorillonite at both low and high pH. Ametryne (pKₐ ≅ 4.0) showed a greater increase in adsorption with decrease in pH than atrazine (pKₐ = 1.68). Addition of charcoal to soil masked the effect of soil pH on ametryne adsorption. Adsorption of ametryne on charcoal decreased at the low pH values conducive to ametryne protonation, demons ...
DOI:
10.2136/sssaj1972.03615995003600010013x

3. Calcium Fluoride Formation During Extraction of Calcareous Soils With Fluoride: II. Implications to the Bray P-1 Test

Author:
G. W. Smillie; J. K. Syers
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 25-30
ISSN:
0361-5995
Subject:
X-ray diffraction; aluminum; ammonium chloride; calcareous soils; calcite; calcium; calcium carbonate; fluorides; hydrochloric acid; iron; neutralization; sodium chloride; sodium hydroxide; soil horizons
Abstract:
... Calcium fluoride formed during a 1-min extraction of calcite (50-2 µm) with the Bray P-1 reagent (0.03M NH₄F/0.025N HCl) sorbed added P. Because of the problem in identifying minor components of a whole soil matrix by X-ray diffraction analysis, it was frequently difficult to positively identify CaF₂ in residues following a 1-min Bray P-1 extraction of calcareous soils; CaF₂ was, however, identifi ...
DOI:
10.2136/sssaj1972.03615995003600010005x

4. Calcium Fluoride Formation During Extraction of Calcareous Soils with Fluoride: I. Implications to Inorganic P Fractionation Schemes

Author:
J. K. Syers; G. W. Smillie; J. D. H. Williams
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 20-25
ISSN:
0361-5995
Subject:
aluminum; aragonite; calcareous soils; calcite; calcium; calcium carbonate; dolomite; fluorides; fractionation; hydrochloric acid; inorganic phosphorus; iron; magnesite; phosphorus fertilizers; sodium chloride; sodium hydroxide
Abstract:
... Added inorganic P sorbed during 0.5M NH₄F extraction of calcite or aragonite was recovered in subsequent citrate-dithionite-bicarbonate (CDB) and HCl extractions of the Williams et al. (1967) inorganic P fractionation scheme. The sorbed P was shown to be associated with CaF₂ formed by the replacement of CaCO₃ during the NH₄F extraction. Similar results were obtained for soils which contained calci ...
DOI:
10.2136/sssaj1972.03615995003600010004x

5. Contributions of Clay and Organic Matter to the Cation Exchange Capacity of Maryland Soils

Author:
W. R. Wright; J. E. Foss
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 115-118
ISSN:
0361-5995
Subject:
A horizons; B horizons; C horizons; cation exchange capacity; cations; clay; coastal plain soils; coastal plains; organic matter; piedmont; prediction; regression analysis; Maryland
Abstract:
... Fifty-seven profiles representing 19 soil series from the three physiographic regions of Maryland were described and sampled. The relative contributions of clay and organic matter to total cation-exchange capacity (CEC) of various horizons were measured using multiple regression analysis. The independent variables were clay and organic matter, with the dependent variable being CEC by sum of cation ...
DOI:
10.2136/sssaj1972.03615995003600010027x

6. D-Chiro-Inositol Phosphate in a Forest Soil

Author:
Michael F. L'Annunziata; Wallace H. Fuller; David S. Brantley
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 183-184
ISSN:
0361-5995
Subject:
forest soils; isomers; moieties; myo-inositol; paper chromatography; phosphates; polarimetry
Abstract:
... The previously unidentified “D,L”-chiro-inositol phosphate (L'Annunziata and Fuller, 1971) of a Tucson forest soil was identified as the dextrorotatory D-chiro-inositol phosphate. An infrared spectrum of the inositol moiety was obtained as evidence for the chiro isomer, additional to the previously reported paper chromatographic Rf values (L'Annunziata and Fuller, 1971). A positive polarimetric op ...
DOI:
10.2136/sssaj1972.03615995003600010061x

7. Diffusion of Zinc in Soil: I. The Influence of Soil Moisture

Author:
D. D. Warncke; S. A. Barber
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 39-42
ISSN:
0361-5995
Subject:
cation exchange resins; diffusivity; paper; soil water; water content; zinc
Abstract:
... Effective Zn diffusion coefficients, Dₑ₍Zₙ₎, were determined at several soil moistures on six soils by allowing ⁶⁵Zn diffuse from the soil into cation exchange resin paper placed on the surface of the soil. At 13% volumetric moisture Dₑ₍Zₙ₎ values ranged from 10⁻¹¹ to 10⁻⁸ cm²/sec with the range narrowing as the soils approached moisture saturation. In five of six soils, the effect of increasing m ...
DOI:
10.2136/sssaj1972.03615995003600010008x

8. Ecology of Nematodes in Clarion-Webster Toposequences Associated With Glycine Max (L.) Merrill

Author:
J. W. Nyhan; L. R. Frederick; D. C. Norton
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 74-78
ISSN:
0361-5995
Subject:
Aphelenchus avenae; Glycine max; Helicotylenchus; Tylenchorhynchus; Tylenchus; barium; clay; dry matter accumulation; edaphic factors; factor analysis; field capacity; nitrogen content; potassium; silt; soil fertility; soil organic matter; soil pH; soil pore system; soil water; soluble salts; soybeans; toposequences; variance
Abstract:
... Toposequence variations in soil and plant properties were characterized and related to nematode populations associated with soybeans. The smallest populations of Aphelenchus avenae, Helicotylenchus pseudo-robustus, Tylenchorhynchus nudus, Tylenchus spp., and non-stylet-bearing nematodes occurred at the toeslope position within the toposequences. Increases in soil pH, soluble salts, percentages of ...
DOI:
10.2136/sssaj1972.03615995003600010017x

9. Effects of Snow Removal, Litter Removal and Soil Compaction on Soil Freezing and Thawing in a Minnesota Oak Stand

Author:
David B. Thorud; Donald P. Duncan
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 153-157
ISSN:
0361-5995
Subject:
air temperature; cold; freezing; frozen soils; hydrology; loamy sand soils; sandy loam soils; snow; snowpack; soil compaction; thawing; water content; Minnesota
Abstract:
... The depths of soil freezing and thawing were measured periodically with a Veihmeyer tube in snow removed, litter removed, compacted, compacted-snow removed, and undisturbed plots during the 1962–63 season near St. Paul, Minn. The soil was a sandy loam to a loamy sand with a high water content when the study began. Cold conditions and minimal snowfall resulted in deeply frozen soil throughout Minne ...
DOI:
10.2136/sssaj1972.03615995003600010035x

10. Estimating Deep Drainage Between Irrigations

Author:
D. E. Miller; J. S. Aarstad
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 124-127
ISSN:
0361-5995
Subject:
drainage; evapotranspiration; irrigation; soil water; soil water content; water table
Abstract:
... This paper treats the situation, common in irrigation, in which the water table is deep enough to be ignored and applied water moves downward by drainage and is taken up by plants. When plants are transpiring, soil water content is reduced by both deep drainage and plant extraction. Drainage rates from a wetted depth of soil are related to the total water contained in that depth when there is no p ...
DOI:
10.2136/sssaj1972.03615995003600010029x

11. Fractionation of Cation Exchange Capacity for Assessing Soil and Water Sodicity

Author:
C. A. Bower; J. D. Rhoades
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 174-175
ISSN:
0361-5995
Subject:
arid zones; cation exchange capacity; equations; exchangeable sodium; fractionation; hydraulic conductivity; regression analysis; salt concentration; sodicity; vermiculite
Abstract:
... High vermiculite, arid zone soils whose cation exchange capacities (CEC) decrease more than 45% by K fixation have higher than usual regression coefficients for the relation between their exchangeable-sodium ratio (ESR) and sodium-adsorption ration (SAR). The regression coefficients are approximated by the equation: regression coefficient of ESR/SAR relation = (0.00043 × percentage decrease in CEC ...
DOI:
10.2136/sssaj1972.03615995003600010056x

12. Improvemet of a Solonetzic (Slick Spot) Soil by Deep Plowing, Subsoiling, and Amendments

Author:
W. W. Rasmussen; D. P. Moore; L. A. Alban
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 137-142
ISSN:
0361-5995
Subject:
Nyssa; Solonetz; crop yield; gypsum; irrigation; saline sodic soils; saline soils; silt loam soils; subsoiling; Oregon
Abstract:
... Soil improvement studies, including deep lowing, subsoiling and gypsum treatments, were conducted on an irrigated solonetzic soil association in southeastern Oregon. The unproductive saline-sodic (solonetz-like) soil tentatively classified as Malheur silt loam (with slick spots) and described as a Nadurargid, occurs in complexes with normally leached soils of the Nyssa and related soil series. The ...
DOI:
10.2136/sssaj1972.03615995003600010032x

13. Ion Selectivity in Three Soil Profiles as Influenced by Mineralogical Characteristics

Author:
L. W. Murdock; C. I. Rich
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 167-171
ISSN:
0361-5995
Subject:
absorption; acetates; adsorption; ammonium; ammonium acetate; clay; magnesium; mica; montmorillonite; rubidium; soil profiles; strontium; vermiculite
Abstract:
... Adsorption and release of Rb and Sr by the 2–0.2µ fraction from the horizons of three vermiculitic soils was influenced by mineralogical properties of the 2:1 layer clays present. The lowest Rb/Sr ratio for absorption of these two ions occurred in a clay containing montmorillonite. The Rb/Sr ratio tended to increase as the degree of mica to vermiculite alteration increased. The presence of hydroxy ...
DOI:
10.2136/sssaj1972.03615995003600010038x

14. Leaching of a Surface Layer of Sodium Chloride into Tile Drains in a Sand-Tank Model

Author:
J. Mulqueen; D. Kirkham
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 3-9
ISSN:
0361-5995
Subject:
drainage water; leaching; salinity; sand; sodium chloride; water table
Abstract:
... A series of experiments was conducted to study the leaching of NaCl through tile drains from a surface layer of salinized sand in a sand-tank model. The effects of two recharge rates, three salinities in the salted-sand layer, and three drain spacings were evaluated. Each experiment was conducted with a steady-state, arch-shaped water table maintained by recharge from a battery of capillary tubes ...
DOI:
10.2136/sssaj1972.03615995003600010001x

15. Nitrogen and Phosphorous Content of Water from Tile Drains at Two Levels of Management and Fertilization

Author:
P. J. Zwerman; Thomas Greweling; S. D. Klausner; D. J. Lathwell
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 134-137
ISSN:
0361-5995
Subject:
ammonium; ammonium nitrate; drainage water; nitrogen; orthophosphates; phosphorus; phosphorus content; silt loam soils; superphosphate
Abstract:
... Average annual rates of 243.2 kg/ha N and 31.5 kg/ha P were applied as high rates of fertilization. Eighty-six kg/ha of N and 12.2 kg/ha of P were applied as moderate rates of fertilization. Ammonium nitrate was used as the N source while 46% superphosphate was the P source. The soil was an association of Lima and Kendaia silt loam. (Glossoboric Hapludolf and Aeric Haplaquent fine loamy, mixed, me ...
DOI:
10.2136/sssaj1972.03615995003600010031x

16. The Effect of Temperature on the Ion Activity Product (Al) (OH)3 and its Relation to Lime Potential and Degree of Base Saturation

Author:
S. Shah Singh
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 47-50
ISSN:
0361-5995
Subject:
aluminum hydroxide; base saturation; clay; equations; temperature
Abstract:
... Equations are derived for the relation between corrected lime potential (CLP) and degree of base saturation for temperatures 15, 25, and 35C. The effect of temperature on the activity of Al(OH)₃ in solution and on the exchange constant is discussed. It is shown that there is a significant effect of temperature on the relation between CLP and percent base saturation. The CLP values decreased 0.15 u ...
DOI:
10.2136/sssaj1972.03615995003600010010x

17. The Morphology and Genesis of Some Alpine Soils in British Columbia, Canada: I. Morphology, Classification, and Genesis

Author:
J. I. Sneddon; L. M. Lavkulich; L. Farstad
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 100-104
ISSN:
0361-5995
Subject:
Spodosols; loamy sand soils; silt loam soils; volcanic ash; British Columbia
Abstract:
... Five soils occurring in alpine regions of British Columbia, Canada, were described. The soils were found to have silt loam to loamy sand textures. Four of the soils met the morphological requirements of the Spodosol order. Dark surface mineral horizons occurred at four sites; two of these qualified as umbric epipedons. Volcanic ash was found in the vicinity of some sites. The soils were classified ...
DOI:
10.2136/sssaj1972.03615995003600010024x

18. The Morphology and Genesis of Some Alpine Soils in British Columbia, Canada: II. Physical, Chemical, and Mineralogical Determinations and Genesis

Author:
J. I. Sneddon; L. M. Lavkulich; L. Farstad
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 104-110
ISSN:
0361-5995
Subject:
Cyperaceae; Spodosols; aluminum; carbon; clay; forbs; grasses; iron; leaching; loamy sand soils; minerals; organic matter; silt; silt loam soils; soil properties; spodic horizons; volcanic ash; weathering; British Columbia
Abstract:
... The results of selected physical, chemical, and mineralogical analyses, carried out on five soils occurring in three alpine regions in British Columbia, Canada, are presented and discussed. An evaluation of the genesis of these soils is made in relation to the analytical results and to the literature. The soils have developed on relatively young post-Pleistocene parent materials and are gravelly a ...
DOI:
10.2136/sssaj1972.03615995003600010025x

19. The Use of Anion Exchange Resin for Determining Available Soil Molybdenum

Author:
H. S. Bhella; M. D. Dawson
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 177-179
ISSN:
0361-5995
Subject:
anion exchange resins; colorimetry; hills; molybdenum; soil pH; thiocyanates; Oregon
Abstract:
... An anion exchange resin (Dowex I-X4) was used to extract soil Mo from 30 western Oregon hill soils of varying development and derived from different parent materials. The values of Mo extracted by the anion resin increased with soil pH and were reproducible using the thiocyanate colorimetric procedure. Soil Mo so obtained was found to be correlated with plant Mo, plant N, and soil pH. ...
DOI:
10.2136/sssaj1972.03615995003600010058x

20. Training and Employment of Professional Agronomists

Author:
J. L. Ahlrichs; Committee
Source:
Soil Science Society of America journal 1972 v.36 no.1 pp. 184-194
ISSN:
0361-5995
Subject:
agronomists; decision making; soil; water resources
Abstract:
... Summary and ConclusionIt may be said that this report strives to provide direction for certain reorientations of soil science water research that will yield the kinds of data needed by the Soil Science Society of America for making decisions on the proper allocation, use, and development of water resources. In generating the data needed for making water decisions, soil science will likely move bey ...
DOI:
10.2136/sssaj1972.03615995003600010041x