Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu The micronutrient boron is critical for production of cole crops (broccoli, cabbage, cauliflower, Brussels sprouts, kale, collards). Boron is naturally deficient in our sandy soils. and is also subject to leaching with… Continue Reading
Jarrod O. Miller, Extension Educator, Somerset County, MD; jarrod@umd.edu In many cropping systems micronutrients may be overlooked until a problem arises. These nutrients are needed in such small quantities that it often takes certain soil types (e.g. sandy) or conditions… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Apart from recommended NPK fertility programs, growers of cabbage, broccoli, cauliflower, Brussels sprouts, kale, and collards need to pay attention to sulfur, calcium, and boron in their cole crop fertility programs. In… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Long time growers of cole crops know that the micronutrient boron is critical for production. However, newer growers may be unaware of these requirements. Boron is also subject to leaching with rainfall,… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu We recently had a suspected case of boron toxicity in snap beans. Boron toxicity is common in western states where boron levels in soils or irrigation water are high. In the east,… Continue Reading
