Grapes are grown throughout China. To achieve high and stable yields, scientific fertilization management is crucial. Therefore, nitrogen, phosphorus, and potassium fertilizers are the best choices for grapevines.
What kind of fertilizer is best for grapevines?
1. Nitrogen fertilizer
Nitrogen fertilizer is fundamental for grapevine growth, helping to promote leaf growth and photosynthesis. Appropriate amounts of nitrogen fertilizer can improve grape yield and quality. However, excessive use of nitrogen fertilizer may lead to excessive vine growth, negatively impacting fruit quality and yield.
2. Phosphate fertilizer
Phosphate fertilizer plays an important role in the root growth and fruit development of grapevines. It can improve the grapevines' resistance to adverse conditions, strengthen the vines, and increase the sugar content and color of the fruit.
3. Potassium fertilizer
Potassium fertilizer is crucial for the ripening and quality of grapes. It can enhance the disease resistance of grapes, improve fruit firmness, and increase storage life.
How should grapevines be fertilized?
1. Fertilization time
① Spring fertilization: Spring is a critical period for grapevine growth. At this time, sufficient base fertilizer should be applied to provide grapevines with enough nutrients to promote the growth of new shoots and the differentiation of flower buds.
② Summer fertilization: Summer is the period when grapevines develop and enlarge their fruit. Nitrogen and potassium fertilizers should be applied in a timely manner to meet the nutrient requirements of the grapevines.
③ Autumn fertilization: Autumn fertilization helps grapevines recover their vigor and lays a good foundation for growth and fruit production in the following year. At this time, phosphorus fertilizer should be the main component, supplemented with appropriate amounts of nitrogen and potassium fertilizer.
2. Fertilization methods
① Apply fertilizer evenly: Ensure that the fertilizer is evenly distributed within the root system of the grapevines, avoiding excessive or insufficient fertilizer.
③ Layered fertilization: Applying fertilizer in layers to the soil helps grapevines absorb nutrients better. Generally, base fertilizer should be applied in the deeper soil layer, while top dressing should be applied in the shallower soil layer.
