ASHS Press Releases

American Society for Horticultural Science

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ASHS Press Releases
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Pretillage, postincorporation mulch deterioration measured in broccoli growing experiments

Scientists evaluated three potentially biodegradable plastic mulch products over two growing seasons of broccoli to determine deterioration before and after soil incorporation. Pretillage mulch deterioration was evaluated in both growing seasons by rating the percent visual deterioration. Postincorporation mulch deterioration was measured for 13 months at the end of the first growing season. Results showed that two of the mulches could be suitable alternatives to polyethylene mulch for broccoli production in the Pacific Northwest.

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Cases studies show WSNs used for both monitoring, controlling irrigation in container nurseries

A review examines three on-farm case studies of product development, deployment, and implementation of wireless sensor networks (WSN) as a means to increase irrigation efficiency in commercial horticulture operations. The report focuses on the use of capacitance-based soil moisture sensors to both monitor and control irrigation events, describing the implementation and use of soil moisture-based irrigation hardware and software developed as part of a U.S. Department of Agriculture Specialty Crops Research Initiative Project.

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Recommended concentrations of plant growth regulator can increase tiger lily production, transportability

Researchers evaluated the appropriate concentration of flurprimidol for 'Orange Tiger' tiger lily, and tested for residual effects of flurprimidol the following year. They found that flurprimidol used at optimal concentrations does not affect plant growth or flowering during the second season. The team also found differential responses to flurprimidol for three other tiger lily cultivars, and recommended that growers conduct preplant bulb soak trials to determine optimal concentrations before applying flurprimidol to an entire crop.

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Study finds irrigation control based on moisture sensor data substantially reduces production time, crop loss

Using data from experiments on gardenia production, researchers determined and applied benefits/costs formulas for assessing profitability of sensor-based irrigation systems. Results showed that sensor-controlled irrigation cut production time and crop losses by more than half. The researchers concluded that controlling irrigation using wireless sensor systems is likely to substantially increase profitability in greenhouse and nursery growing operations.

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Study finds mixed results for outreach workshops' effectiveness

Researchers studied the effectiveness of workshops designed to focus on residential water conservation using a sample of irrigation water use data for 57 workshop participants and 43 nonparticipants. Results indicated that the 2-hour workshops were effective in reducing attendees' irrigation water use; however, the effect was short lived. Results also showed that effects of workshop attendance depended on the household sample, and found that water use increased for some low-use workshop participants.

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