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Singh, S

Donaldson, A

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Authors

Sullivan, D

Peachey, R.E

Donaldson, A

Lukas, S

Singh, S

Topics

Nutrient Management of Horticultural Crops

Invited Oral Presentation

Type

Oral

Year

2021

2025

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Filter results2 paper(s) found.
1. Refining Nitrogen Management for Organic Broccoli Production Specialty organic fertilizers used in organic vegetable production are expensive. So, from environmental and economic perspectives, growers want to maximize nitrogen (N) fertilizer use efficiency by the crop. This research was conducted to (1) determine sufficient N fertilizer rates for organic broccoli, (2) evaluate the efficacy of a specialty organic fertilizer (feather meal; 12-0-0), and (3) confirm the effectiveness of midseason soil nitrate analyses (0-30 cm) in determining appropriate sidedress... D. Sullivan, R.E. Peachey, A. Donaldson Download paper
2. Management Techniques to Optimize Soil pH in Organic Highbush Blueberry A 3-year study was established in eastern Oregon, USA, in a new organic planting of ‘Duke’ northern highbush blueberry (NHB) to evaluate soil acidification methods. Six techniques of applying elemental sulfur (S) prills, with or without additional acidification of irrigation water were tested. Treatments consisted of: 1) a grower standard of soil incorporated S prills at 1700 kg·ha-1 applied 8 months pre-plant; 2) 8-weeks of fertigation totaling 150 kg·ha-1... S. Lukas, S. Singh

Filter results2 paper(s) found.

1. Refining Nitrogen Management for Organic Broccoli Production

Specialty organic fertilizers used in organic vegetable production are expensive. So, from environmental and economic perspectives, growers want to maximize nitrogen (N) fertilizer use efficiency by the crop. This research was conducted to (1) determine sufficient N fertilizer rates for organic broccoli, (2) evaluate the efficacy of a specialty organic fertilizer (feather meal; 12-0-0), and (3) confirm the effectiveness of midseason soil nitrate analyses (0-30 cm) in determining appropriate sidedress... D. Sullivan, R.E. Peachey, A. Donaldson

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2. Management Techniques to Optimize Soil pH in Organic Highbush Blueberry

A 3-year study was established in eastern Oregon, USA, in a new organic planting of ‘Duke’ northern highbush blueberry (NHB) to evaluate soil acidification methods. Six techniques of applying elemental sulfur (S) prills, with or without additional acidification of irrigation water were tested. Treatments consisted of: 1) a grower standard of soil incorporated S prills at 1700 kg·ha-1 applied 8 months pre-plant; 2) 8-weeks of fertigation totaling 150 kg·ha-1... S. Lukas, S. Singh