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Category: Deficiencies & Other Nutrient Issues

Micronutrient Deficiencies in Plants: Identifying and Fixing Fe, Mn, Zn, Cu, and Mo

Yellowing leaves don't always mean a nitrogen problem. If new growth is turning yellow while the veins stay green, or your plant has basically stopped pushing new leaves, you might

Nutrient Mistakes Costing Growers Yield — And How to Stop Making Them

Yield lost to nutrient inefficiency is rarely lost all at once. It bleeds out over a cycle, hidden in compounding small errors that individually seem inconsequential. Running a proactive nutrient

Grow Diagnostics and Plant Health Testing for Cannabis

Unlock the full potential of your cannabis cultivation with Grow Diagnostics from Arvum. This in-depth guide explores how plant tissue and media testing provide actionable insights into nutrient deficiencies, toxicities,

Tomato Leaf Curl: Why Are My Plant Leaves Curling Up?

At one point or another, you’re going to walk into your grow room or garden and notice your tomato plant leaves curling up. You may not know exactly what is

Silica for Plants: Benefits, Forms & How to Use It

Silica is one of the most powerful plant supplements in controlled environment agriculture. Learn how silicon strengthens stems, thickens cell walls, boosts pest and disease resistance, and improves stress tolerance

Macronutrient Deficiencies in Plants: Identifying and Fixing N, P, K, Ca, Mg, and S Deficiencies

Learn all about plant nutrients, how they effect plants and how to diagnose nutrient deficiencies.

Boron Deficiency in Plants: How to Identify, Fix, and Prevent It

Boron is typically used with calcium, for the process of cell wall synthesis. It is also needed to create new plant cells in a process known as cell division. It

Sulfur For Plants: Deficiency, Toxicity, Sources, & More

Sulfur is classified as a secondary nutrient, but it is the fourth major nutrient necessary for plant health. Learn to diagnose and cure sulfur deficiency.

Calcium For Plants: Deficiency, Toxicity, Sources, & More

Calcium is oftentimes an underestimated nutrient that is very important to plant growth. Calcium plays a huge part in optimal plant health and nutrition.

Magnesium For Plants: Deficiency, Toxicity, Sources, & More

Magnesium deficiencies are often present in soil and water, and it becomes necessary to supplement with additional magnesium amendments.

Potassium For Plants: Deficiency, Toxicity, Sources, & More

Potassium is an essential macronutrient that is vital for optimal plant growth. Potassium deficiency can reduce resistance to bacteria and molds.

Phosphorus For Plants: Deficiency, Toxicity, Sources, & More

Second only to nitrogen, phosphorus is the most essential nutrient to guarantee optimal growth, health, and function of our plants. It is one of the key elements required for just