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Articles 3001 - 3030 of 3818
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Mustang Daily, March 13, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, March 11, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, March 8, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, March 5, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Academic Senate - Agenda, 3/5/1991, Academic Senate
Academic Senate - Agenda, 3/5/1991, Academic Senate
Academic Senate Agendas
No abstract provided.
Mustang Daily, March 4, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, February 28, 1991
Mustang Daily, February 28, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
February 28, 1991 Cal Poly Report, Public Affairs Office
February 28, 1991 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
February 21, 1991 Cal Poly Report, Public Affairs Office
February 21, 1991 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Mustang Daily, February 20, 1991
Mustang Daily, February 20, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
February 14, 1991 Cal Poly Report, Public Affairs Office
February 14, 1991 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Mustang Daily, February 11, 1991
Mustang Daily, February 11, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
February 7, 1991 Cal Poly Report, Public Affairs Office
February 7, 1991 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Mustang Daily, February 6, 1991
Mustang Daily, February 6, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, February 1, 1991
Mustang Daily, February 1, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Soil Tests For Aluminum Toxicity In The Presence Of Organic Matter: Laboratory Development And Assessment, M. G. Whitten, G. S.P. Ritchie
Soil Tests For Aluminum Toxicity In The Presence Of Organic Matter: Laboratory Development And Assessment, M. G. Whitten, G. S.P. Ritchie
Food Science and Nutrition
Al toxicity in plants is related to the activity of Al3+ and Al-hydroxy monomers in the soil solution, whereas Al complexed with ligands such as fluoride (F), sulphate (SO42-), and oxalate is not toxic. Estimation of toxic Al relies on measurement of “labile”; Al after short contact times with colorimetric reagents or cation-exchange resins. However, shifts in equilibrium may result in non-toxic forms of Al reacting with the complexing agent or resin.
A series of laboratory experiments tested the degree to which labile Al is related to Al3+ in simplified media and compared methods of …
Mustang Daily, January 23, 1991
Mustang Daily, January 23, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, January 17, 1991
Mustang Daily, January 17, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, January 16, 1991
Mustang Daily, January 16, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Mustang Daily, January 14, 1991
Mustang Daily, January 14, 1991
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
January 10, 1991 Cal Poly Report, Public Affairs Office
January 10, 1991 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Calcium Chloride Extractable Cadmium As An Estimate Of Cadmium Uptake By Subterranean Clover, M. G. Whitten, G. S.P. Ritchie
Calcium Chloride Extractable Cadmium As An Estimate Of Cadmium Uptake By Subterranean Clover, M. G. Whitten, G. S.P. Ritchie
Food Science and Nutrition
Cadmium (Cd) may accumulate in soils which have been regularly fertilized with phosphate fertilizers which contain Cd originating in rock phosphate. Soil was taken from three sites in the wheatbelt of Western Australia which were estimated to have received different amounts of phosphate fertilizer over the past decade. The pH was adjusted with dilute HCl or CaCO3. No Cd was added experimentally. The concentration of Cd in the whole tops of Trifolium subterraneum cv Mt Barker grown in a glasshouse pot experiment increased from 0.2-0.8 µg g-1 dry wt at pH 6.6-6.9 (1:5 0.01 M CaCl …
Legacy, Kathleen Malley
Reply To Weir: Unnecessary Fear, Nutrition, And Vegetarianism, Steven F. Sapontzis
Reply To Weir: Unnecessary Fear, Nutrition, And Vegetarianism, Steven F. Sapontzis
Between the Species
No abstract provided.
A Comparison Of Soil Tests To Predict The Growth And Nodulation Of Subterranean Clover In Aluminium-Toxic Topsoils, M. G. Whitten, G. S.P. Ritchie
A Comparison Of Soil Tests To Predict The Growth And Nodulation Of Subterranean Clover In Aluminium-Toxic Topsoils, M. G. Whitten, G. S.P. Ritchie
Food Science and Nutrition
Total Al concentration or pH in 1∶5 10 mM CaCl2 extracts and exchangeable Al in 100 mM BaCl2 extracts cannot always distinguish between Al-toxic and Al-nontoxic topsoils. Our objectives were to compare the abilities of different measures of Al and pH in various extracts to predict the effects of acidity on growth and nodulation of subterranean clover. In a glasshouse experiment, Trifolium subterraneum L. cv. Mt Barker was grown in acidic soils from 3 sites in the Western Australian wheatbelt with different histories of phosphate fertilizer application. The pH was adjusted to give a range of …
A Soil Test For Aluminium Toxicity In Acidic Subsoils Of Yellow Earths In Western Australia, S. J. Carr, G. S.P. Ritchie, W. M. Porter
A Soil Test For Aluminium Toxicity In Acidic Subsoils Of Yellow Earths In Western Australia, S. J. Carr, G. S.P. Ritchie, W. M. Porter
Food Science and Nutrition
Many of the yellow earths in the Western Australian wheatbelt have naturally acidic subsoils which can reduce the yield of wheat grown on them. Current methods of assessing soil acidity cannot identify which soils have subsoil acidity severe enough to restrict wheat yields.
We conducted 53 field experiments at 34 sites in 5 regions over 3 years to determine the relationship between yield of wheat and several different indices for identifying subsoils with toxic concentrations of aluminium, Al. Initially, we identified that the concentration of aluminium, [Al], in the soil solution and in 1 : 5 0.005 M KCl extracts …
Unnecessary Pain, Nutrition, And Vegetarianism, Jack Weir
Unnecessary Pain, Nutrition, And Vegetarianism, Jack Weir
Between the Species
No abstract provided.
Response, Jack Weir
Odd Boy In, Jon Wynne- Tyson