It is worth thinking about the correct mixing of spray liquids. This ensures that the active ingredients remain effective and liquid fertilisers, biostimulants and amino acids are better absorbed by the plant.
A failure to tank mix correctly can result in clogged equipment, uneven spray and waste of valuable products and nutrients.
The water should be very clean, free of any particles or suspended solids. It might be necessary to use tap water instead of irrigation water to get the highest water quality possible.
If the water used to mix the spray mixture has a high pH or the water hardness is too high, this can have a negative effect on the result. Calcium, iron and magnesium ions can bind to the active ingredients and reduce their effectiveness.
It is therefore advisable to first determine the pH value after filling in 2/3 of the water quantity. After adding a pH buffer solution such as TourTurf® FS Micro Pack, vinegar or citric acid, the pH is measured again and adjusted step by step. For most applications, the pH of the spray mixture should be between pH 4 to 6. You get best results between pH 5 to 6. Simple test strips are suitable for determining the pH value.
Water hardness can be determined using test strips, lab analysis, or the analysis of your water plant when using tap water.
The solubility of nutrients in water is temperature dependent. Often a water temperature around 20°C is aimed at. This will not be possible in autumn or winter, using cold tap water or well water, but it can help to fill the sprayer 2/3 with water in the evening and leave the sprayer indoors in the machine shed. The solubility of nutrients and the mixability will be improved.
Check the Tank Mix Guide on the last page of the TourTurf catalogue to see which products are compatible and tank mixable. A few products should be only applied as a single product application. Some mixtures even provide synergistic effects.
In a small container add water and products in amounts equivalent to the application rate.
For example mix in a small jar:
Stir the mixture. If the solution is still stable after 15 minutes and there is no precipitation, you can most likely go ahead with mixing the products in this way.
Especially Wetting Agents and products containing natural surfactants tend to foam excessively.
Add TourTurf® AFL Anti-foam Liquid before adding the Wetting Agent and any foam has formed. This avoids staining the sprayer and wasting product.
TourTurf® BSM Blue Spray Marker can be used to improve the quality of spraying especially with older equipment without foam markers. Helps to avoid overlapping and to identify compromised nozzles quickly.
If you want to add a more permanent colour to your turf, you can add TourTurf® GTP Green Turf Paint instead.
Some products are intended to be used as foliar fertilisers coating the leaves. Others are intended to be applied with a higher application rate of water with coarser nozzles to be applied to the soil and penetrate the soil profile.
The types of nozzles required and the amount of water to be used is indicated on all our product labels.
Use TourTurf® FBM Foam Bout Marker to increase the accuracy of the spray even under adverse conditions. FBM produces a high quality and firm foam.
It aids spray operators to eliminate the problems caused by spray overlap and over spraying and which is ideal for use on fairways and other large areas of turf.
Tank mixtures should be applied immediately to minimise separation and loss of effectiveness.
The spray tank and the system should be thoroughly cleaned with TourTurf® APC All Purpose Tank Cleaner after application to minimise residual quantities within the system.
Even small amounts of spray agent residue in the sprayer can lead to mixing problems. TourTurf® APC All Purpose Tank Cleaner is a liquid cleaning agent that removes pesticide residues and other residues, including oily substances, from tanks, hoses, filters and nozzles.
The product can also be used in a pressure washer to remove residues, dirt, etc. from the outside of the sprayer.