Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Each year we see cases of magnesium deficiency in vegetables. This is a common problem with tomatoes, but all vegetables are susceptible. Magnesium (Mg) is considered a secondary macroelement and is essential… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Cauliflower, cabbage, Brussels sprouts, Chinese cabbage (Napa cabbage) and lettuce are susceptible to tipburn. This problem can cause severe economic losses. Tipburn is a breakdown of plant tissue inside the head of… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Calcium Deficiency Calcium deficiency is most commonly seen as tipburn of cauliflower, cabbage, and Brussels sprouts. Chinese cabbage (Napa cabbage) is also susceptible to tipburn. This problem can cause severe economic losses.… Continue Reading
Amy Shober, Extension Nutrient Management and Environmental Quality Specialist, ashober@udel.edu; Jarrod O. Miller, Extension Agronomist, jarrod@udel.edu; Mark Reiter, Associate Professor and Extension Specialist, Soils and Nutrient Management, Virginia Tech, mreiter@vt.edu Soybean is susceptible to manganese (Mn) deficiency, especially when grown… Continue Reading
Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Growers will apply most (>90%) of their plant nutrients for vegetable crops as soil applications (preplant, sidedressed, fertigated) based on soil tests and crop nitrogen needs. To monitor vegetable nutrient status during… Continue Reading
