1. Grape base fertilizer: mainly organic fertilizer, the dosage should account for 60%-70% of the total fertilization in the whole year, and 3000-5000 kg of compost or compost should be applied per mu, if the dried chicken manure sold on the market is used. The dosage is 700-1000 kg, and it is also accompanied by the addition of 30 kg of compound fertilizer. When fertilizing, be aware that organic fertilizer must be decomposed.

2, grape topdressing: in the growing season to promote plant growth and fruit development.

Germination: It is applied before the early spring buds start to sprout. Mainly based on quick-acting nitrogen fertilizer. Immediately after the top dressing is completed, the water should be irrigated to promote the germination. Urea or decomposed human excrement can be applied, urea is applied 0.1-0.4 kg/plant, and human feces urine is applied at 8-10 kg/plant.

Pre-flowering fertilizer: Fertilization 7-10 days before flowering, NPK compound fertilizer should be selected, 0.1-0.15 kg/plant.

Expanded fruit fertilizer: In this period, fertilization should be combined with quick-acting nitrogen fertilizer and compound fertilizer, urea 0.1-0.5 kg/plant, and NPK fertilizer 0.1-0.5 kg/plant.

Color-increasing sugar-increasing fertilizer: refers to the fertilizer applied before or after the color change of the fruit, mainly phosphorus and potassium fertilizer. Potassium sulfate can be selected from 0.2 to 0.4 kg/plant.

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JRT laser distance sensors could connect PLC,PC,Arduino,Raspberry Pi, also support Modbus RTU Protocol.
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