University of Delaware
Weekly Crop Update
  • UD Cooperative Extension Home
Weekly Crop Update
from UD Cooperative Extension
Menu Close
  • Current Issue
  • About WCU
  • Issue & Weather Archive
  • Subscribe

magnesium

Magnesium Deficiencies in Vegetables

June 4, 2021kgyoung

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 →

Vegetable Crops 29:11, magnesium, micronutrient deficiency

Nutrient Deficiencies and Toxicities Related to pH, Ca and Mg

June 12, 2020ahoggard

Jarrod O. Miller, Extension Agronomist, jarrod@udel.edu and Cory Whaley, Sussex Co. Extension Ag Agent; whaley@udel.edu We are observing a range of deficiency issues this year in corn, many of which have similar symptoms. Last week we had some images of… Continue Reading →

Agronomic Crops 28:13, calcium, field corn, magnesium, pH

Foliar Fertilization for Vegetable Crops

May 1, 2020Emmalea Garver Ernest

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 →

Vegetable Crops 28:7, magnesium, micronutrient deficiency, potassium, vegetable crop nutrients

Magnesium Deficiencies in Vegetables Revisited

May 10, 2019cmanneri

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu We have seen several cases of magnesium deficiency in vegetables already in 2019. Magnesium (Mg) is considered a secondary macro-element and is essential for plant growth. It is a component of chlorophyll,… Continue Reading →

Vegetable Crops 27:7, magnesium, nutrient deficiency, vegetable crop nutrients

Manganese Toxicity in Cantaloupes

July 20, 2018Emmalea Garver Ernest

Jerry Brust, IPM Vegetable Specialist, University of Maryland; jbrust@umd.edu Growers, especially on the Eastern Shore, may already be seeing leaf symptoms on their cantaloupe plants that are often misdiagnosed as a foliar disease. However, these leaf symptoms described below indicate… Continue Reading →

Vegetable Crops 26:17, cantaloupe, magnesium, manganese, micronutrient deficiency, pH

Additional Resources

  • Cooperative Extension Home
  • Commercial Vegetable Production Recommendations
  • Insect Sampling and Action Thresholds
  • Insect Trapping Programs
  • Integrated Weed Management
  • Extension Vegetable & Fruit Program
  • UD Extension Factsheets
  • DEOS Weather Station Data
  • NEWA Weather & Models

Join us on social media!

 

 

Admin

  • Log in
  • Entries RSS
  • Comments RSS
  • WordPress at UD
© 2023 Weekly Crop Update. All rights reserved.
Fashionista by aThemes
UD
  • Go to the UD twitter page (external link)>
  • Go to the UD facebook page (external link)>
  • Go to the UD instagram page (external link)>
  • Go to the UD youtube page (external link)>
  • Go to the UD pintrest page (external link)>
  • Go to the UD linkedin page (external link)>
  • ©   University of Delaware
  • Comments
  • Legal Notices
  • Accessibility Notice