Micro 400

Copper, Iron, Manganese, Zinc Micronutrient Fertilizer

Micro 400 is a micronutrient fertilizer designed to correct micronutrient deficiencies in soil and stimulate plant growth. Micro 400 contains copper, iron, manganese and zinc. It is easy to apply and safe to use with other nutrient programs. Micro 400, unlike its sister fertilizer product Micro 500, does not contain boron, so it is ideal for plants that are sensitive to this nutrient. This liquid micronutrient fertilizer can also be applied with other micronutrients and macronutrients, so you don’t have to make a special trip to apply the nutrients that are ideal for your crops.

Product Benefits

  • Corrects deficiencies that can stunt crop growth
  • Supports chlorophyll production and improves leaf growth
  • Can improve micro- and macronutrient utilization
  • Can improve yield and crop quality
  • Improves micronutrient profile in soil for greater longevity
  • Easy to apply

Micronutrient Fertilizer

Micronutrients are sometimes overlooked in favor of macronutrients, however micronutrients are essential to healthy plant growth. Without micronutrients, essential processes become more difficult and the plant’s growth can be stunted. Giving plants the right amount of micronutrients at the right time can also be a challenge. Micro 400 micronutrient fertilizer uses Nutriq Technology for controlled release. This technology provides a steady supply of copper, iron, manganese and zinc, and reduces the concentration of micronutrients required. This means you can apply copper, iron, manganese and zinc fertilizer safely without affecting the soil’s nutrient balance.

Feeding your plants and maintaining the nutrient profile of your soil doesn’t have to be a time-consuming task. This copper, iron, manganese and zinc fertilizer is designed to be easy to apply. You do not have to make a special trip to apply Micro 400. This micronutrient fertilizer can be applied with other liquid macronutrients or crop protection products. In this way, you can correct deficiencies and feed your plants without adding time or work.

Copper, Iron, Manganese, Zinc Fertilizer

Copper, iron, manganese and zinc are four of the micronutrients that are essential to plant processes. Overlooking these micronutrients often results in deficiencies, which can damage plant leaves, stalks, and root systems, and minimize growth. Micronutrient deficiencies can cause growth abnormalities and misshapen fruit, seeds, tubers, and leaves. This ultimately impacts the quality of the yield, but it can also impact the quantity. Without the right amount of micronutrients, the plant’s cell growth will slow.

Micro 400 is a copper, iron, manganese and zinc fertilizer that provides the small, but stable amount of micronutrients plants need to continually maintain strong cell growth. This allows the plant’s essential processes to thrive, including energy transfer throughout the plant and protein synthesis, which are needed to grow and develop all parts of the plant, but especially the flowers, fruits, seeds, and tubers needed for a high-quality harvest. Whether you are working with row crops, fruit trees, or vines, Micro 400 can provide the essential copper, iron, manganese and zinc your plants need for strong, healthy growth.

Are Iron and Zinc Good for Plants?

Just like iron and zinc are essential for humans to stay healthy, iron and zinc are also essential for plants. Iron and zinc, as well as manganese and copper, aren’t required in large amounts, but plants require these nutrients to produce chlorophyll. When soil is deficient in these nutrients, it stunts chlorophyll production and prevents plants from reaching maximum growth potential. This in turn reduces fruit, seed, and tuber growth, which ultimately reduces yield. Micro 400 corrects deficiencies through the measured release of these essential micronutrients.

What do these micronutrients actually do for plants? Iron is important in the production of many plant enzymes which help plants transfer energy, fix nitrogen, and create lignin, a complex polymer that forms the tissues of plants. Zinc is also essential for the metabolic processes in plants, including respiration, photosynthesis, and nitrogen fixation. Manganese is important for the activation of metabolic processes, especially photosynthesis. It’s also important for seed germination and the initial growth of the plant. Copper works as a catalyst for several growth processes, and it is important for the production of vitamin A and proteins.

Are My Plants Deficient in Micronutrients?

Detecting micronutrient deficiencies can be difficult, as many micronutrient deficiencies appear in plants in similar ways. You may notice yellow or brown coloration, leaf curling or burning, stunted growth, or abnormalities in fruits, seeds, stalks or tubers. A tissue or soil test can help you determine the micronutrient profile of your soil, and show whether any micronutrient deficiencies are to blame for abnormal or stunted growth.

Composition Guarantee Analysis

Copper (Cu) 0.25%
0.25% Water Soluble Copper (Cu)
Iron (Fe) 0.37%
0.37% Water Soluble Iron (Fe)
Manganese (Mn) 1.20%
1.20% Water Manganese (Mn)
Zinc (Zn) 1.80%
0.07% Water Soluble Zinc (Zn)

Micro 400™ is derived from copper sulfate, ferrous sulfate, manganese sulfate, and zinc sulfate. Note that this product does not contain boron, making it safe to use on crops that are sensitive to boron. To choose the best application method and amount to correct deficiencies or stimulate growth, contact an AgroLiquid agronomist.

Have us design a custom nutrition plan for you

An AgroLiquid nutrition plan is dependent on your location, climate, soil conditions, and goals with your crop. All of our tailored programs start with reviewing your soil samples with one of our expert agronomists. After our analysis, our team will provide you with a couple options that will help you meet your goals on a budget that won’t break the bank.

AgroLiquid Scientific Advancements

Just like people, plants also require micronutrients to grow properly. Micronutrients are essential to photosynthesis, which supports every structure in the plant. We’ve carefully studied micronutrient use of various crops, and developed optimal micronutrient fertilizer programs for each one. Our fertilizers can be used to fix deficiencies that are damaging leaf, stalk, root, and bud growth, or they can be used proactively to stimulate production.

Nutriq Technology

This bonds with your nutrients and creates a protective layer that makes up to 80% more of your nutrients available to plants. It sounds like magic, but it’s just science.

Application strategies for Micro 400™

Planter placement

Foliar application



Have a specific crop problem you’re trying to solve?

AgroLiquid was founded because there wasn’t a nutritional product that was solving our fertilizer needs; after 35 years of development and research, our chemists, biologists, and agronomists continue to innovate and create the best products on the market. If you have a specific crop problem, ask one of our agronomists and we’ll help you solve it!

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