DE102009042471A1 - Producing micro- and nano-suspensions of plant-available nutrient, natural and artificial manures and plant strengthening agent by using ball mill e.g. bead mill, rotor mill, disk mill or mortar mill, dispersing machine and homogenizer - Google Patents

Abstract

Producing micro- and nano-suspensions of a plant-available nutrient, natural and artificial manures and a plant strengthening agent by using a ball mill including a bead mill, a rotor mill, a mortar mill, a disk mill or a colloid mill, a dispersing machine and a homogenizer, is claimed.

Description

State of the art:

Foliar fertilizers and plant restoratives are offered in solid and liquid formulations on the market. For the production of foliar fertilizers, many nutrients must first be disrupted or dissolved in order to make them available for the plants and thus available. Plants absorb nutrients primarily in the form of ions. Solids with a particle size of 45 μm can not be absorbed through the stomata. Solid and liquid formulations (suspension concentrates) of foliar fertilizers and plant strengthening agents on the market contain solid particles with average particle sizes> 4 μm.

Deficiencies of the previous versions:

A plant is able to absorb individual ions or molecules directly from the solid particle after the application of solids to its leaf. The smaller the particulate matter is, the easier the plant will be and the more effectively a nutrient can be used. The formulations available on the market do not offer an optimal solution because they work with too high particle sizes.

In practice, there are always problems in the application of suspensions, since the screens and / or nozzles of the sprayers clog due to the relatively high particle size.

The invention

In order to optimize the absorption of nutrients by the plant or to increase the efficiency of foliar fertilizers and Pflanzenstäkungsmitteln and to prevent problems with clogged nozzles in the application, Erb Agrar AG has developed micro and nano-suspensions of foliar fertilizers and plant strengthening agents.

With the help of ball mills including bead mills, rotor mills, mortar mills, disk mills, colloid mills, dispersing machines and homogenizers raw materials for the production of foliar fertilizers and plant strengthening agents, foliar fertilizer formulations or plant strengthening agents are dry or wet milled and as micro-suspensions with maximum particle sizes of 4 microns or as nanosuspensions with Particle sizes <1 micron formulated.

The invention encompasses the micro- or nanoising of the nutrients sulfur, magnesium, potassium, calcium, iron, manganese, copper, zinc, molybdenum, silicon and boron, which are used as pure elements or in the form of carbonates, oxides, oxychlorides, hydroxides, Phosphates or citrates are available to the plant.

The invention further encompasses the micro- or nanoization of plant strengthening agents based on carbonates, oxides, hydroxides, phosphates, citrates and sulfates and on the basis of other natural raw materials of inorganic origin such as minerals (rock salt, lava flour, clay, etc.) and organic origin like plants (field horsetail, algae, stinging nettles, etc.).

embodiments

In the production of magnesium-containing foliar fertilizers based on magnesium carbonate, the carbonate is dissolved by the addition of acid or the active ingredient magnesium is digested for the plant. This always leads to problems because the carbonate does not fully react and water-insoluble residues remain in the formulation. These lead in practice to clogging of the screens and / or nozzles and the magnesium can not be optimally utilized by the plant. By the micro- or nanoization of the raw material magnesium carbonate according to the invention can be dispensed with the digestion of the carbonate, since the plant is able to directly absorb the magnesium from the micronized magnesium. In the production of magnesium foliar fertilizer can be saved raw materials, the plant can use the magnesium more effectively and in the application no more technical problems.

Sulfur is offered in elemental form as a suspension concentrate as a foliar fertilizer on the market. The formulations contain particles larger than 4 microns (ex. Trade name Sulfolac: d50 <8 microns), which is why they can be applied in practice only with constant stirring and with the frequent consequence of a screen and / or nozzle clogging. After the micro- or nano-sulfurization according to the invention, nozzle clogging no longer occurs. Furthermore, the plant can use the sulfur more effectively.

Aluminum sulfate is a common plant tonic that is offered in powder form. The effectiveness of this product can be significantly increased by the micronization.

Claims (1)

Production of micro- and nanosuspensions from plant-available nutrients, natural and artificial fertilizer types as well as Plant strengthening agents using technical means such as ball mills including bead mills, rotor mills, mortar mills, disk mills, colloid mills, dispersing machines and homogenizers.