What kind of fertilizer is good for grape vines (base fertilizer application method)

Selection of base fertilizer for grapevines

It is very important to apply base fertilizer to grape vines. This fertilization has an important impact on the growth of grapes throughout the year. Generally, base fertilizer is applied in late autumn, that is, before the plants enter dormancy.

The base fertilizer for grape trees is mainly organic fertilizer, combined with phosphorus and calcium fertilizers. After the organic fertilizer is decomposed in the soil during the winter, it can meet the growth needs of the plants in the second year and also help the regeneration of roots that were broken that year.

How to apply base fertilizer to grapevines

First, dig strip trenches 50cm deep and 60cm wide. According to the standard that 500g of fruit requires 2000-2500g of fertilizer, use 3-5t of organic fertilizer for every 667m2. When applying organic fertilizer, add superphosphate to the topsoil fertilizer, using 50-100kg per 667m2, and water the area thoroughly after applying the base fertilizer.

How much base fertilizer should be applied to grape vines?

The amount of base fertilizer applied for grape vines is generally 3,000 to 4,000 kilograms of organic fertilizer per 666.7 square meters, combined with 1.5 to 2.0 kilograms of phosphorus and calcium fertilizers.

How to apply base fertilizer to grapevines

1. The first application of base fertilizer is before germination, mainly nitrogen fertilizer, which can be applied by decomposed human feces, urea, ammonium bicarbonate, ammonium sulfate, etc., or urea or compound fertilizer.

2. The second topdressing can be done after fruit setting, when the berries grow to the size of soybeans, by applying about 15 kg of human manure or nitrogen, phosphorus, and potassium compound fertilizers or urea.

3. The third fertilization is when the fruit begins to color. The fertilizer used this time is mainly potassium fertilizer, combined with an appropriate amount of phosphorus fertilizer. This kind of fertilization can improve the quality of the fruit.

4. The fourth top dressing is after harvest, mainly with phosphorus and potassium fertilizers. The main purpose of this fertilization is to restore the tree's vigor, promote nutrient storage, and help it survive the winter smoothly.