Greenhouse Glazing

Many greenhouse growers, both new and old, have a lot of questions on what are the best options for covering their greenhouse. This short video by Dr. Gene Giacomelli (Professor of Agricultural and Biosystems Engineering and Controlled Environment Agriculture at the University of Arizona.) and Dr A.J. Booth (Extension Specialist in Horticultural Engineering, Energy, Hydroponics […]

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Pythium root rot on hydroponically grown basil and spinach

by Neil Mattson for eGro (https://e-gro.org/pdf/E301.pdf) Waterborne diseases that infect roots are a common production issue in hydroponic production. Several species of the water mold, Pythium, attack greenhouse crops. Basil and spinach are susceptible to economically devastating levels of Pythium root infection in hydroponics. In this article we will present symptoms of Pythium infection and management strategies. […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 9-2

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and has moved to The Ohio State University this summer. Week 9-2: GH environment 2 This is the final week! For this week, we will have two lectures understanding […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 9-1

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and has moved to The Ohio State University this summer. Week 9-1: GH environment 1 This is the final week! For this week, we will have two lectures understanding […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 8-3

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and has moved to The Ohio State University this summer. Week 8-3: Sink Source 2 For this week, my lecture starts with some basics of plant physiology, water relation and sink-source […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 8-2

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and has moved to The Ohio State University this summer. Week 8-2: Sink Source 1 For this week, my lecture starts with some basics of plant physiology, water relation and […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 8-1

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and has moved to The Ohio State University this summer. Week 8-1: Water relation For this week, my lecture starts with some basics of plant physiology, water relation and sink-source relationship. These lectures include […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 7-2

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and has moved to The Ohio State University this summer. Week 7-2: Substrate Over the past six weeks, you became familiar with those aerial environments affecting plant growth (photosynthesis and development) and most importantly their […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 7-1

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and has moved to The Ohio State University this summer. Week 7-1: Plant nutrition Over the past six weeks, you became familiar with those aerial environments affecting plant growth (photosynthesis and development) and most […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 6-2

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and has moved to The Ohio State University this summer. Week 6-2: Canopy environment 2 This week, your “system” of interest expands from a single leaf to a whole plant canopy (community). Canopy refers […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 6-1

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and has moved to The Ohio State University this summer. Week 6-1: Canopy environment 1 This week, your “system” of interest expands from a single leaf to a whole plant canopy (community). […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 5-3

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and is moving to The Ohio State University this summer. Week 5-3: Energy balance 2 This week, you will complete the “Plant Responses to Environmental Conditions” by taking the last lecture on humidity. […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 5-2

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and is moving to The Ohio State University this summer. Week 5-2: Energy balance 1 This week, you will complete the “Plant Responses to Environmental Conditions” by taking the last lecture on humidity. […]

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CEAC Greenhouse Plant Physiology and Technology Course – Week 5-1

Urban Ag News proud to feature Dr. Chieri Kubota’s class on Greenhouse Plant Physiology and Technology. Dr. Kubota was a professor at the University of Arizona and is moving to The Ohio State University this summer. Week 5-1: Humidity This week, you will complete the “Plant Responses to Environmental Conditions” by taking the last lecture on humidity. Then we […]

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