Mineral Amendments - Zinc Sulfate

Zinc Sulfate - Mineral Amendment

Essential Micronutrient for Crop Health and Enzyme Activation

Zinc Sulfate is a highly soluble mineral amendment used to correct zinc deficiencies in soil and plants. Zinc is a vital micronutrient involved in enzyme function, hormone balance, and chlorophyll production. Deficiencies can lead to stunted growth, leaf distortion, delayed maturity, and poor fruit set-especially in fruit trees, corn, and legumes. Zinc Sulfate is ideal for use in vegetable gardens, orchards, row crops, vineyards, and mineral balancing in regenerative soil systems.

Key Characteristics

• Corrects Zinc Deficiencies in Soil and Crops
  Zinc is critical for plant metabolism, particularly for growth hormones and protein synthesis. Deficiency often shows as interveinal chlorosis, pale or rosetted leaves, and weak fruit development. Zinc Sulfate provides immediate, plant-available zinc to reverse symptoms and prevent yield loss.

• How to Use in Soil or Foliar Programs

  • Soil application: 1-2 lbs per 1,000 sq ft (or 10-20 lbs per acre) depending on soil test results.

  • Foliar spray: Mix 1-2 teaspoons per gallon of water and apply in early morning or late afternoon.

  • Compost additive: Add a small amount (1-2 tablespoons per cubic foot) to compost or compost tea to enhance mineral content.

  • Frequency: Apply 1-2 times per season or as recommended by a soil test.

• Supports Key Crops Prone to Zinc Deficiency
  Especially useful in high pH or calcareous soils where zinc availability is limited. Beneficial for:

  • Corn, beans, peas, and alfalfa

  • Citrus, apples, grapes, and stone fruits

  • Tomatoes, peppers, eggplants, and cucurbits

  • Berries and other perennial fruits

• Improves Nutrient Efficiency and Plant Vigor
  Zinc is necessary for the proper functioning of enzymes and for phosphorus mobility in plants. Supplementing zinc can improve overall nutrient efficiency, increase resilience to environmental stress, and enhance root development and fruit quality.

• Safe and Compatible with Organic Practices
  Though not inherently "organic,€� zinc sulfate is commonly approved by certifiers when used responsibly and in conjunction with soil testing. Always verify with your certifier.

Product Details

• Type: Mineral amendment (Zinc Sulfate Monohydrate or Heptahydrate)

• Elemental Zinc: ~35% (monohydrate) or ~22% (heptahydrate)

• Primary Use: Correcting zinc deficiency, enzyme activation, chlorophyll synthesis

• Application Method: Soil incorporation, foliar spray, compost additive

• Recommended Rate: 1-2 lbs per 1,000 sq ft or as guided by soil test

• Use Frequency: 1-2x per season; more frequent in high pH soils

• Best For: Row crops, vegetables, fruit trees, perennials

• Packaging: Available in small bags and bulk quantities

Zinc Sulfate is a precise and effective tool for remineralizing soils and supporting crop metabolism. When used based on soil testing, it can dramatically improve plant growth, nutrient use efficiency, and harvest quality.