Method of agricultural crop foliar application

FIELD: agriculture.

SUBSTANCE: invention relates to the field of agriculture. The method comprises spraying the agricultural crops with an initial crushing the solution flow of microelement fertilisers by the air flow and the subsequent drops electrocharge in corona electrostatic field. The liquid-air mixture is prepared at a distance from the hydraulic sprayer nozzles, then fed under pressure to hydraulic nozzles, at the output of which it is crushed and passes in the form of a torch with bubbles of air through the electrostatic field, where the mixture in the form of liquid-air drops is electrostatically charged, is additionally crushed thus increasing monodispersity, surface moisture of the fed plants, the number of free ions of nutrients of microellement fertilisers, which, precipitating on the surface of the agricultural crops, penetrate into the plant, improving its nutrition. The drop size, their crushing, monodispersity of drops and the amount of free ions is regulated by the pressure of microelement fertiliser solution from 0.2 to 0.3 MPa, the air pressure of 0.4 to 0.5 MPa, injected in the solution of fertilisers in the pumping mains, microelement fertiliser solution flow through one nozzle to 0.3 L/min, electrocharging of the sprayed liquid-air drops with the electrostatic voltage on the electrodes of 3 to 5 kV and a current of 10 mA.

EFFECT: method enables to increase the saturation of the solution mixture of fertiliser with air and to increase the monodispersity of the sprayed solution of microelement fertilisers.

2 dwg

 

The invention relates to agriculture, in particular to a sheet feeding crops.

The known method foliar application by spraying of agricultural crops dissolved trace element fertilizers by suction through the leaves and other aerial parts of the plant nutrients microelement fertilizers in ionic form (Practical application of micronutrient fertilizers Aquadon-Micro // LLC Orgainising SPB. - S.-Petersburg. - 2011. - Issue 3. - 18 C.). The solution of microelement fertilizer sprayers under pressure supplied to the hydraulic pulverizers, pulverizing it into droplets and ejected on the treated culture.

The disadvantage of this method is the large polydispersity of the droplets of the spray solution trace element fertilizers. In the small droplets carried by the wind beyond the treated plants, and large - flow from leaves of crops on the soil. The effectiveness of microelement fertilizers is reduced, and the consumption has been increasing.

There is a method of spraying crops liquid-air droplets formed during the spray cooked in the sprayer liquid-air mixture through the slotted nozzles (Patent for invention №2390128 RF Method op is asiania crops / VI Valkov, YU.N.. Volgin, VA Sluggish // WNEP-TIMESH. - Appl. 27.11.2008. publ. 27.05.2010).

The disadvantage of this method is the poor adhesion of the liquid-droplets with nutrients fertilizers on the sheet, the back side and on the stem.

Closest to the claimed method is a method of spraying crops with solutions of pesticides (Tweetin A.V. the Use of an electric field when spraying plants with pesticides / A.V. Tweetin, A.S. Gorazdova, R.S. Sukhanova // Agriculture abroad. - 1984. No. 3. - P.18-25), spray electrostatic sprayer with an initial crushing stream of solution by a stream of air and subsequent charging of the drops in the corona electrostatic field.

The disadvantage of this method is the high resistivity of aqueous solutions of pesticides requiring high static voltage and time for charging of the sprayed droplets.

The objective of the invention to increase the surface area of leaves and stems of crops irrigated with solutions of trace element fertilizers, improved adhesion and penetration of nutrients being fed through the surface of plants.

To perform this task, we propose a method of sheet feeding crops solution of microelements the fertilizer, namely, that at a distance from the hydraulic sprayers sprayers prepare the liquid-air mixture, then file it under pressure to the hydraulic nozzles at the exit from which it is crushed and in the form of a torch with bubbles, passes through an electrostatic field, where the mixture is in the form of liquid droplets receives an electrical charge, additionally crushed, increasing the monodispersity, the wetting of the surface being fed plants, the number of free ions, nutrients, trace element fertilizer, which, settling on the surface of crops, penetrate into the inside of the plant, improve his diet, the size of liquid droplets their fragmentation, the monodispersity of the droplets and the number of free ions regulate the pressure of the solution trace element fertilizers from 0.2 to 0.3 MPa, the air pressure of from 0.4 to 0.5 MPa, injectisome in solution trace element fertilizers in the discharge line, the solution flow rate of microelement fertilizers through one spray to 0.3 l/min, electrotheraphy sprayed liquid droplets when the electrostatic voltage on the electrodes 3 to 5 kV and current up to 10 mA.

The technical result from the use of the invention is more fully saturate the liquid-air mixture of rest the RA microelement fertilizers air, what is achieved by the pressure injectisome in the solution discharge line sprayer air and increase the way let it from the place of preparation before spraying on the crop, to improve the monodispersity of the spray liquid-air mixture solution of microelement fertilizers followed by electrotheraphy liquid droplets containing the trace elements iron, copper, molybdenum, zinc, boron, manganese and having a resistivity of 1%solution in 400 times lower than distilled water, which occurs for a short period of time at low voltage on the electrodes, creating an electrostatic field. Charged liquid-air drops of a solution of trace element fertilizers additionally dissolved, wetting the surface of plants, increases the number of free ions of the trace elements are forced electrostatic field toward the front and the back of the leaf, the stalk of the plant, penetrating into the inside of the plant, improving its power.

This result is achieved by first preparing a distance from the nozzles of the sprayer mixture solution of microelement fertilizers with air, which is supplied under pressure to the hydraulic sprayers sprayer. The amount of the solution is regulated by a pressure from 0.2 to 0.3 MPa in n gnetales highway sprayer and air pressure from 0.4 to 0.5 MPa, injectisome in the discharge line of a solution of trace element fertilizers and ensure the flow of solution through one nozzle of 0.3 l/min Coming out of the spray mixture solution with air is crushed, forming a spray consisting of liquid droplets that pass between the electrodes, creating an electrostatic field voltage from 3 to 5 kV and rated current up to 10 mA. Transmitting for a short time, drops additionally crushed, increasing the number of free ions of trace elements fertilizer, deposited on a negatively charged plants, pressed to the front and back of the leaf and stem feeding by plants, increasing his power.

The invention is illustrated by the following drawings:

figure 1 shows the application of sprayed and charged in an electrostatic field drops of the liquid-air mixture being fed on microelement fertilizer to the plant;

figure 2 shows a view of a figure 1 - a spray of charged droplets of the liquid-air mixture.

Operates the way the sheet feeding crops as follows. Prepared liquid-air mixture under a certain pressure supplied to the hydraulic sprayer 1, the output of which it is crushed to form spray 2 consisting of a liquid-air what's drops, including the bubbles 3, coated 4 from a solution of microelement fertilizer. Passing between the electrodes 5, creating an electrostatic field, the liquid-air drops receive an electrical charge, additionally crushed and deposited on the surface being fed plants 6. An electrostatic field is generated by a power source mounted on the sprayer, the voltage Converter 7 step-up transformer and a voltage multiplier circuit 8 with a storage capacitor.

The proposed method does not adversely impact on the environment.

The way the sheet feeding crops, including crop spraying with an initial crushing stream of solution microelement fertilizers airflow and subsequent electroporator drops in the corona electrostatic field, wherein at a distance from the hydraulic sprayers sprayers prepare the liquid-air mixture, then file it under pressure to the hydraulic nozzles at the exit from which it is crushed and in the form of a torch with bubbles of air passes through the electrostatic field, where the mixture is in the form of liquid droplets receives an electrical charge, additionally crushed, increasing the monodispersity, the wetting behavior of the displacement is being fed plants, the number of free ions, nutrients, trace element fertilizer, which, settling on the surface of crops, penetrate plants, improve his diet, while the size of the liquid droplets, their fragmentation, the monodispersity of the droplets and the number of free ions regulate the pressure of the solution trace element fertilizers from 0.2 to 0.3 MPa, the air pressure of from 0.4 to 0.5 MPa, injectisome in solution trace element fertilizers in the discharge line, the solution flow rate of microelement fertilizers through one spray to 0.3 l/min, electrotheraphy sprayed liquid droplets when the electrostatic voltage on the electrodes 3 to 5 kV and power current up to 10 mA.



 

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