
Sub-micronized calcium for better quality crops
Delivering the right amount of calcium at the right time
A crop’s demand for available calcium spikes to a high level at the onset of fruit, tuber, nut or bulb formation. A calcium deficiency at this point in development results in dividing cells being unable to stay bound together. This causes problems like hollow heart in potatoes, blossom end rot in tomatoes, and poor storability.
ENCOURAGE® NANOCAL® is a readily available, soil-applied calcium supplement that dramatically improves fruit and tuber quality. Unlike typical calcium additives with particle sizes up to 80 microns, NANOCAL is milled to less than one micron.
NANOCAL’s improved calcium uptake benefits include:
- Increased firmness in fruit or flesh
- Better uniformity of maturity
- Increased yield and coloring
- Reduction in calcium deficiency-based physiological disorders
- Improved shelf life and storability
- Soil Health
- ENCOURAGE NANOCAL
- Calcium increases by crop
Soil Health
Growers have always known the value of calcium in producing healthy crops. However, the challenge has been how to deliver enough readily available calcium to fruits and tubers at the right time in their development. Maintaining calcium levels with a comprehensive soil fertility program is important but may not provide the level of available calcium demanded by a developing crop.
The only way to prevent insufficient calcium in the developing produce is to increase the concentration of soluble calcium in the soil immediately surrounding the crop’s root system.
NANOCAL is a liquid, soil-applied product with calcium particles milled to less than 1 micron in size. This micronized particle size addresses some of the shortcomings of larger sized particles found in other calcium sources.
NANOCAL is formulated to be applied at bloom in fruits and vegetables and hook initiation in potatoes so the sub-micron particles are available to the developing crop. This timing takes the guess work out of whether there is enough calcium available when demand skyrockets during the critical period of cell division in the crop’s development.
We guarantee that when you choose Oro Agri products for your operation, you can GROW WITH CONFIDENCE.
ENCOURAGE NANOCAL
The one-micron-sized calcium found in NANOCAL provides roots a denser field of calcium particle for uptake. Unlike other calcium additives that are far too big to be readily absorbed, NANOCAL’s unique nano-sized calcium carbonate allows the immediate movement into the meristematic region of growing roots for superior fruit and tuber development.
NANOCAL’s 1-micron size is small enough to be immediately taken up by plants.
Foliar-applied calcium will not translocate to roots.
The movement of calcium is primarily through a plant’s transpiration system. For the plant to grow, a steady supply of calcium and water must be supplied by the root system. NANOCAL prevents calcium deficiency by delivering a high concentration of soluble calcium in the soil immediately surrounding the plant’s root system.
Soil-applied NANOCAL calcium particles are immediately available to developing tubers or fruit.
Soil flocculation for improved growing conditions.
An additional benefit of NANOCAL is soil structure improvement. After disassociation from the calcium carbonate molecule in the soil, the positively charged calcium ions bond to the negatively charged clay particles, which opens up pore space for better water and oxygen penetration and reduced resistance to root growth.
Flocculation Before / After
The only calcium supplement with TransXylem™ technology.
The proprietary TransXylem™ technology in NANOCAL facilitates easy movement of material upward from the roots to the fruits and other parts of the plant. This translocation up the xylem ensures calcium is delivered in the most effective way to benefit the entire plant.
Timing of applications:
- Potatoes: Apply 1-3 weeks prior to hook
- Stone and Pome fruit: Apply at petal fall
- Indeterminate crops: Apply at bloom with subsequent applications every 14 to 21 days for continuous crop development
- Other crops: Apply just before fruit/vegetable initiation

*Always read and follow the product labels for more complete information and application directions.
Label & Application Instructions
ENCOURAGE NANOCAL is a source of sub-micronized calcium to be applied at the initiation of fruit set to increase fruit and tuber uptake during cellular division, improve fruit and tuber formation, strengthen cell walls, reduce crop deterioration during storage and promote overall crop vigor. ENCOURAGE NANOCAL should be applied just prior to or at the early stages of fruit or tuber initiation to ensure maximum calcium uptake during cellular division. It is not meant to remedy a calcium deficiency in soil. The calcium particles are milled to an average size of less than 1 micron to be easily transportable within the plant.
• ENCOURAGE NANOCAL can be tank mixed with other nutrient, plant growth regulator or crop protection products.
• ENCOURAGE NANOCAL can be applied by ground or aerial equipment or chemigated by drop, pivot or sprinkler irrigation.
• ENCOURAGE NANOCAL can be tank mixed with most pesticides and nutrients.
Prior to use, read all the directions on this product label and the directions on the labels of any tank mix partners being used with ENCOURAGE NANOCAL . USE RATES: Apply 1-8 pints of ENCOURAGE NANOCAL per acre either as a soil or foliar treatment.
TIMING: In general, apply ENCOURAGE NANOCAL just prior to fruit or tuber initiation to ensure availability during fruit and tuber cellular division.
Below are application timing guidelines for popular crop categories. If you have questions about a specific crop please contact your Oro Agri area manager or local Oro Agri retailer.
Shake or agitate container thoroughly before mixing. Thoroughly clean all spray mixing and application equipment prior to and following each use. If mixing for the first time, a jar test for compatibility is recommended particularly if fertilizers are being tank mixed. Mixing instructions for tank mix partners can supersede the following information (1– 6):
- Fill the spray tank to 1/2 of the desired water volume and begin agitation
- If applicable, add wettable powders, dry flowables, then liquids
- Add ENCOURAGE NANOCAL
- Fill tank to 3/4 desired water volume
- Add any fertilizers
- Fill the tank to the final water volume and continue agitation during application.
Applicator should spray and evaluate response for 48 hours prior to widespread usage. May cause staining on handler’s apparel and hard surfaces. Application of certain nutrients during high temperatures may result in staining or cosmetic injury of fruit or rind. Test all new tank mixes before widespread use. Do not apply directly to seed. To ensure thorough mixing, it is suggested that you recirculate mini tanks and bulk tanks or shake containers before using. Do not mix ENCOURAGE NANOCAL with undiluted tank mix partners until you have conducted a jar test in a separate container using the proportionate amount of ENCOURAGE NANOCAL to make sure the products are compatible. Agitate and let stand 10 minutes. Settling that does not disperse indicates an incompatible mixture. Do not use on crops or plants that are sensitive to surfactants. Do not mix with or add other surfactants.
STORAGE: Keep away from open flames, hot surfaces and sources of ignition. Store in a cool, dry, well-ventilated place out of direct sunlight. Store in original tightly closed container away from children, animals, foods, feeds and seeds.
PRODUCT AND CONTAINER DISPOSAL: Do not allow this material to drain into sewers/water supplies. Empty containers or liners may retain some product residues. Triple rinse (or equivalent) during mixing and loading. Dispose of contents in accordance with local/regional/national/international regulations.
CONDITIONS OF SALE-LIMITED WARRANTY AND LIMITATIONS OF LIABILITY AND REMEDIES: To be read prior to using this product. The directions should be followed carefully together with good application practice. Failure to do so may cause injury to crops, animals, man or the environment. Extraordinary or unusual weather conditions may affect product performance and/or crop injury which are beyond the control of Oro Agri, Inc. (the “Company”) or seller. The Company warrants that this product conforms to the chemical description on the label and is reasonably fit for the purpose referred to in the Directions For Use. The Company makes no other warranties or representations of any kind, express or implied, concerning the product, including no implied warranty of merchantability or fitness for any particular purpose, and no such warranty shall be implied by law. The exclusive remedy against the Company for any cause of action relating to the handling or use of this product shall be limited to, at Company’s election, ONE of the following: 1. Refund of the purchase price paid by buyer or user for product bought. 2. Replacement of the product used. To the extent allowed by law, the Company shall not be liable and any and all claims against the Company are waived for special, indirect, incidental, or consequential damages or expense of any nature, including, but not limited to, loss of profits or income. The company/seller offer this product and the buyer/user accept it, subject to the foregoing conditions of sale and limitation of warranty, liability and remedies. Patented and/or patent(s) pending. For more information contact legal@oroagri.com – ENCOURAGE, NANOCAL and ORO AGRI are trademarks of Oro Agri, Inc. – 20180601