38results about How to "Avoid uneven fertilization" patented technology

The invention discloses a backpack type semi-automatic fertilization device used in the crop growing period. The device comprises a shell. Straps, a power source and a control switch are arranged outside the shell. The shell is of a cylindrical structure. The power source is electrically connected with the control switch. A rotating rod fixedly penetrates through the middle of a first bearing and the middle of a second bearing, the lower end of the rotating rod extends to a closed space formed by a partition plate and the shell, a blocking plate is fixedly installed at the lower end of the rotating rod, communication openings are symmetrically formed in the blocking plate, discharge outlets are symmetrically formed in the lower surface of the bottom end of the shell, and discharge plates are fixedly installed at the lower ends corresponding to the discharge outlets. According to the backpack type semi-automatic fertilization device of the structure, the fertilization condition in the growing process of crops, particularly high crops such as corn crops and cotton crops can be met, the uneven fertilization amount possibly caused by manual fertilization is avoided through the cooperation of an automatic spiral groove and a motor, the physical power burden of workers is relieved, and the working efficiency is improved.

The invention relates to a grape fertilization device which comprises a housing and a driving shaft, wherein the driving shaft is connected with a driving wheel; a feeding hopper is arranged at the upper part of the housing; a first rotating shaft is rotationally connected with the side wall of the feeding hopper; a first conveyer belt is connected between the first rotating shaft and the drivingshaft; a first baffle plate is fixedly connected with a first rotating shaft; a first gear is fixedly connected with the first rotating shaft coaxially; a first gear is meshed with a second gear; a second rotating shaft is fixedly connected with the second gear coaxially; a second baffle plate is fixedly connected with the second rotating shaft; a third rotating shaft is rotationally connected tothe interior of the housing; a second conveyer belt is connected between the third rotating shaft and the second rotating shaft; a storage cabin is fixedly connected with the third rotating shaft coaxially; baffle plates are arranged inside the storage cabin; an airbag is arranged between two adjacent baffle plates; the airbag is communicated with an air guide tube; a liquid outlet tube is connected inside the airbag; a fertilization hole is formed in the bottom of the housing; an intermittent discharge mechanism is connected to the fertilization hole in a sliding manner; a third conveyer beltis connected between the intermittent discharge mechanism and the third rotating shaft. By adopting the grape fertilization device, device feeding and device movement are carried out synchronously.

The invention relates to a treatment method for preventing a resin-coated controlled-release fertilizer from floating. According to the method, a water-retaining agent, talcum powder and water are uniformly mixed, so that an anti-floating agent is obtained; then, the anti-floating agent is added to the resin-coated controlled-release fertilizer, and the mixture is uniformly stirred, so that the surface of the controlled-release fertilizer is uniformly coated with the anti-floating agent; and the controlled-release fertilizer is dried in the shade and then applied. When particles of the fertilizer are applied to the water, the particles absorb water and sink into the water rapidly, so that problem that the resin-coated controlled-release fertilizer floats in the water is solved, problems of nutrient loss and nonuniform fertilization are avoided.

The invention discloses an anti-floating agent, anti-floating controlled release urea and a preparing method of anti-floating controlled release urea. The anti-floating controlled release urea is made by applying the anti-floating agent to surfaces of controlled release urea particles. The preparing method includes the steps of a, providing or preparing the controlled release urea particles; b, mixing APG (alkyl polyglucoside), AEC (sodium fatty alcohol polyoxyethylene ether carboxylate) and coco-glucoside according to a preset ratio to obtain the anti-floating agent; c, loading the controlled release urea particles into a coating unit; and d, spraying the anti-floating agent prepared in the step b, to the surfaces of the controlled release urea particles to obtain the anti-floating controlled release urea. The anti-floating agent is made from natural recyclable resources and is green, low in toxicity and stimulus, prone to biological degradation, friendly to soil and water and environment, high in activity and low in addition. The anti-floating controlled release urea is especially suitable for rice planting.