Early-maturing grapes can be applied after harvesting. Late-maturing grapes can be applied before harvesting, and it is better to finish late in early October.
The fertilization method was applied along the fixed row and the ditch was opened to a width of 30 cm and a depth of 60 cm. The topsoil and raw soil are opened. Before fertilizing, backfill a layer of top soil (about 10 cm), apply the basal fertilizer, and fill the topsoil. Then, the soil and the fertilizer are stirred again, and finally, the raw soil is backfilled into the ditch level, and the remaining soil is used as a rake to facilitate watering.
The organic grape basal must be treated with perishable fat, especially chicken droppings, to avoid damaging the coarse roots. After fertilization, it is necessary to pour once and permeate the soil, producing 2,000-3,000 kilograms of vineyards per acre. Basal fertilizer can be applied to 4000-5000 kilograms. Shelf fertilization, along the direction of vine growth year by year from the inside to open the trench fertilization. Basal fertilizer can not always be applied in one place, and it is easy to cause the growth of roots to be blocked and rot to die.
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