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

pH

Before Laying Plastic, Check the Soil pH

April 16, 2021cmanneri

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu Mid-April is when plastic mulch laying starts for many of our summer crops. Each year we see problems with low bed pH under plastic mulch. This can result in a range of… Continue Reading →

Vegetable Crops 29:4, 31:3, cantaloupe, pH, plasticulture, vegetable crop management

Minimum Soil pH for Vegetables

April 16, 2021cmanneri

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu The following are minimum pHs for various vegetable crops. Crop Min. pH Cucumbers, cantaloupes, squash, pumpkins 5.8 Watermelons 5.5 Tomatoes, peppers, and eggplant 5.8 Cole crops (broccoli, cabbage, cauliflower, Brussels sprouts, kale,… Continue Reading →

Vegetable Crops 29:4, 31:3, pH, vegetable crop management

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

Low pH and Nutrient Deficiencies in Vegetables

May 10, 2019cmanneri

Gordon Johnson, Extension Vegetable & Fruit Specialist; gcjohn@udel.edu As soil pH drops, availability of magnesium and calcium declines while manganese availability increases, often to toxic levels. Below pH of 5.2, the chemistry of the soil changes and aluminum is released… Continue Reading →

Vegetable Crops 27:7, nutrient deficiency, pH, 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

Post navigation

← Older Articles

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