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California Polytechnic State University, San Luis Obispo

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Split-Root Nutrition Of Sweetpotato In Hydroponic Systems, M. A. Sherif, P. A. Loretan, A. A. Trotman, D. G. Mortley, J. Y. Lu, Lauren C. Garner Jan 1995

Split-Root Nutrition Of Sweetpotato In Hydroponic Systems, M. A. Sherif, P. A. Loretan, A. A. Trotman, D. G. Mortley, J. Y. Lu, Lauren C. Garner

Horticulture and Crop Science

Nutrient film technique (NFT) and deep water culture (DWC) hydroponic systems were used in a split-root study of the effect of four treatments on sweetpotato yield, the translocation of assimilates, and microbial population count. ‘TU-155’ cuttings (15 cm) were prerooted for 30 days in sand using deionized water and a modified half-Hoagland (MHH) solution. After 30 days, the plants were removed, and the roots of each were cleaned and split evenly between two sides of a channel (each 15 cm deep by 15 cm wide by 1.2 m long), four plants per channel. Replicated treatments were: MHH/MHH; MHH/Air, MHH/deionized water …


Forms Of Cadmium In Sandy Soils After Amendment With Soils Of Higher Fixing Capacity, S. S. Mann, G. S. P. Ritchie Jan 1995

Forms Of Cadmium In Sandy Soils After Amendment With Soils Of Higher Fixing Capacity, S. S. Mann, G. S. P. Ritchie

Food Science and Nutrition

Most of the Cd applied through phosphatic fertilizers in sandy soils tends to stay in mobile forms (soluble or exchangeable) and hence the risk of it leaching to underground water or its uptake by plants is higher. A sequential extraction procedure was used to assess the efficacy of amending materials (soils containing inorganic or organic adsorption components) on the re-distribution of forms of Cd in a sandy soil. Amendment of the sandy soil with each of the three soils (yellow earth, lateritic podzolic and peaty sand) was generally effective in altering the more mobile or available forms of Cd to …


Effect Of Gypsum Application Rate And Leaching Regime On Wheat Growth In A Highly Acidic Subsoil, C. D.A. Mclay, G. S. P. Ritchie Jan 1995

Effect Of Gypsum Application Rate And Leaching Regime On Wheat Growth In A Highly Acidic Subsoil, C. D.A. Mclay, G. S. P. Ritchie

Food Science and Nutrition

A glasshouse experiment "was conducted to investigate gypsum application and leaching on the amelioration of" an aluminium (Al) toxic subsoil for wheat growth. Treatments included different rates of gypsum application and amount of leaching prior to wheat being grown. Wheat shoot growth increased when gypsum was applied in both the presence and absence of leaching, but growth was higher with leaching. Gypsum application led to a decrease in toxic Al as a result of a higher ionic strength and activity of AlSO4+ion pairs in the soil solution, and increased Al leached from the soil. Root growth may …


A Utilitarian Argument For Vegetarianism, Nicholas Dixon Jan 1995

A Utilitarian Argument For Vegetarianism, Nicholas Dixon

Between the Species

No abstract provided.


What Do Animals Care About?, Lilly-Marlene Russow Jan 1995

What Do Animals Care About?, Lilly-Marlene Russow

Between the Species

No abstract provided.


Soluble Aluminium In Acidic Soils: Principles And Practicalities, G. S.P. Ritchie Jan 1995

Soluble Aluminium In Acidic Soils: Principles And Practicalities, G. S.P. Ritchie

Food Science and Nutrition

Our ability to predict toxic quantities of aluminium (Al) in acidic soils is limited by our understanding of the interactions between different solid forms of Al in solution and our lack of knowledge of which form control soluble Al. This review briefly considers each type of solid form of Al, particularly from a kinetic point of view and discusses models that have been developed to predict release of Al from individual forms. More comprehensive models (i.e. more than one source or sink of Al) are then discussed as well as the interactions between different solid sources of Al.


December 2, 1994 Cal Poly Report, Public Affairs Office Dec 1994

December 2, 1994 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.


Mustang Daily, November 17, 1994 Nov 1994

Mustang Daily, November 17, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


Mustang Daily, November 10, 1994 Nov 1994

Mustang Daily, November 10, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


Mustang Daily, November 7, 1994 Nov 1994

Mustang Daily, November 7, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


November 4, 1994 Cal Poly Report, Public Affairs Office Nov 1994

November 4, 1994 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.


Mustang Daily, October 31, 1994 Oct 1994

Mustang Daily, October 31, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


October 28, 1994 Cal Poly Report, Public Affairs Office Oct 1994

October 28, 1994 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.


Mustang Daily, October 13, 1994 Oct 1994

Mustang Daily, October 13, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


October 7, 1994 Cal Poly Report, Public Affairs Office Oct 1994

October 7, 1994 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.


Mustang Daily, October 6, 1994 Oct 1994

Mustang Daily, October 6, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


Mustang Daily, October 5, 1994 Oct 1994

Mustang Daily, October 5, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


Animal Science Stock Report: Fall 1994, Animal Science Department, California Polytechnic State University - San Luis Obispo Oct 1994

Animal Science Stock Report: Fall 1994, Animal Science Department, California Polytechnic State University - San Luis Obispo

Stock Report

No abstract provided.


Mustang Daily, September 30, 1994 Sep 1994

Mustang Daily, September 30, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


Mustang Daily, September 22, 1994 Sep 1994

Mustang Daily, September 22, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


Mustang Daily, September 12, 1994 Sep 1994

Mustang Daily, September 12, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


September 2, 1994 Cal Poly Report, Public Affairs Office Sep 1994

September 2, 1994 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.


Summer Mustang, August 11, 1994 Aug 1994

Summer Mustang, August 11, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


Summer Mustang, July 21, 1994 Jul 1994

Summer Mustang, July 21, 1994

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.


Process To Remove Cholesterol From Dairy Products, Thomas Richardson, Rafael Jiménez-Flores Jul 1994

Process To Remove Cholesterol From Dairy Products, Thomas Richardson, Rafael Jiménez-Flores

Dairy Science

The present invention relates to a process for the removal of cholesterol from a processed or unprocessed dairy product, which process comprises: (a) obtaining a processed or unprocessed dairy product containing cholesterol (b) contacting the dairy product at a temperature of between about 35° and 80° C. with an amount of saponin effective to bind up to about 90% of the cholesterol present in the dairy product; (c) contacting a temperature of between about 35° and 80° C the cholesterol: saponin with an effective amount of diatomaceous earth; (d) separating the insoluble cholesterol: saponin/diatomaceous earth by filtration or centrifugation; and …


Paradigm Shifts, Scientific Revolutions And The Moral Justification Of Experimentation On Nonhuman Animals, Judith A. Boss, Alyssa V. Boss Jul 1994

Paradigm Shifts, Scientific Revolutions And The Moral Justification Of Experimentation On Nonhuman Animals, Judith A. Boss, Alyssa V. Boss

Between the Species

No abstract provided.


Living Mulches Suppress Aphids In Broccoli, Michael J. Costello, Miguel A. Altieri Jul 1994

Living Mulches Suppress Aphids In Broccoli, Michael J. Costello, Miguel A. Altieri

Horticulture and Crop Science

A living mulch combines an annual crop with a cover crop to provide pest control and soil protection. Results of a study in the Salinas Valley show cabbage aphid infestation can be lowered on broccoli grown in living mulches compared to clean cultivation, possible because light reflectance patterns are less attractive to incoming aphids. Early and intense mowing of the cover crop and adequate irrigation maintained broccoli yield in living mulches relative to clean cultivation. Lack of specialized equipment is the main limitation to the commercial application of living mulches at this time.


June 24, 1994 Cal Poly Report, Public Affairs Office Jun 1994

June 24, 1994 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.


June 10, 1994 Cal Poly Report, Public Affairs Office Jun 1994

June 10, 1994 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.


June 3, 1994 Cal Poly Report, Public Affairs Office Jun 1994

June 3, 1994 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.