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Nutrient Management for Onions in the Pacific Northwest

This publication is designed to assist growers and crop advisors in producing a high-quality crop while protecting the environment from excess nutrients. Contains information on how onions grow; timing and amount of crop nutrient uptake; keys to managing nitrogen efficiently; ways to monitor crop N status during the growing season; how to assess the need for P, K, S, and micronutrient fertilization; fertilizer sources and application methods; and how to assess the need for lime on sandy soils in the Columbia Basin.

PNW 546    Published February 2001    28 pages
Reviewed:
March 2016