Hydroponic vegetable growers are searching for ways to increase on-farm reuse of nutrient solutions and to reduce discharge into the environment ( Shannon and Grieve, 2000 ). Discharge wastes both water and fertilizer, pollutes the environment, and
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Yuan Li, Joseph Heckman, Andrew Wyenandt, Neil Mattson, Edward Durner, and A.J. Both
grown hydroponically at a constant air temperature of 23 °C. Materials and Methods Two greenhouse experiments were conducted to evaluate the effects of Si amendments on hydroponically grown basil. Expt. 1 was initiated on 18 Mar. 2018, and Expt. 2 was
Fernanda Trientini and Paul R. Fisher
( Resh, 2013 ); however, significant technical knowledge is required to successfully manage hydroponic recirculating solutions ( Resh, 2015 ; Savvas et al., 2013 ). In commercial production and research, complex methods are used to prepare, deliver, and
Martin P.N. Gent
under low light conditions in winter ( Blom-Zandstra, 1989 ). High light lowers nitrate, but it can also reduce leaf quality. Tipburn, caused by a localized calcium deficiency, often occurs in hydroponic lettuce grown under high light or supplemental
Iryna Andrenko, Thayne Montague, Cynthia McKenney, and Russell Plowman
. 1. Flowers of ( A ) Gaura villosa , ( B ) Xanthisma texanum , and ( C ) Ipomopsis rubra . Materials and Methods Plant materials, preparation of salinity experiment, and growing conditions. Hydroponic experiments were conducted during Spring 2017
R. Lowe and D. Donnelly
Minituber production was investigated using ex vitro `Norland' plantlets in a rockwool-based hydroponic system. Productivity was evaluated for 12- and 16-h photoperiod pre-treatment, planting density (two, four, and six plantlets/slab), vertical or horizontal orientation, pinching, and hilling. Total yield differences did not result from photoperiod pre-treatments, but 12-h pre-treatment increased the number of minitubers in the desirable 10- to 40-g size range. Increased planting density reduced yield per plant but caused small increases in yield per slab. Planting orientation, pinching, or hilling had no effect on overall fresh weight yield, number, or size distribution. Short photoperiod pre-treatment, and planting densities of four to six plantlets/slab, oriented vertically, are recommended.
Carl E. Niedziela Jr., Mary A. Depa, Paul V. Nelson, Daniel H. Willits, Mary M. Peet, David A. Dickey, and Nancy C. Mingis
the April to May and January to March experiments and 550, 830, and 1100 μmol·m −2 ·s −1 in the November to December experiment). There were two replications within each target PPF level. Experimental units were 42-L hydroponic tanks (72 in total
Samuel E. Wortman, Michael S. Douglass, and Jeffrey D. Kindhart
, both of these challenges can be at least partially addressed by growing strawberries in a hydroponic system within high tunnels. Hydroponic production, through the use of nutrient solution or soilless substrates as growing media, eliminates weed
R.I. Wilkinson and B. Hanger
1 Research Officer. 2 Hydroponic Consultant, P.O. Box 212, Monbulk, Victoria (Australia). The cost of publishing this paper was defrayed in part by the payment of page charges. Under postal regulations, this paper therefore must be herebv
Shannon M. Coleman, Bledar Bisha, Steven E. Newman, Marisa Bunning, and Lawrence D. Goodridge
Hydroponic greenhouse production has increased in recent years to help meet the demand for year-round fresh produce availability. The Economic Research Service (ERS) of the United States Department of Agriculture (USDA) has also reported a rise in