Grapes require three key fertilizations throughout the year
This article shares some practical knowledge about the topic of fertilizing grapes three times a year. Let's take a look together.
Grapes require three key fertilizations throughout the year
The first fertilization can be done before the grape trees sprout, the second fertilization can be done after the flowers fade and before the young fruits start to swell, and the third fertilization is usually done when the grape seeds start to color.
The first fertilization can be carried out before the grape seedlings emerge. The fertilization should focus on nitrogen fertilizer as the main component, with phosphorus and potassium fertilizers as supplements. It can also be applied in combination with the decomposition method of farm manure and urea to meet the nutritional needs of flower bud differentiation and new growth. The amount of fertilizer used can be 10-15% of the annual fertilization amount.
The second fertilization can be done after the grape fruits wither and before the young fruits swell. At this time, the grape trees have a relatively high demand for nutrients. Whether water and fertilizer directly affect the yield of the following year should be noted more for fertilization! Following the principle of nitrogen fertilizer as the main component and phosphorus and potassium fertilizers as supplements, a solution of 0.3-0.5% urea and 0.3% potassium dihydrogen phosphate can be used to meet the nutritional needs of flower bud differentiation and fruit expansion and development. The amount of fertilizer applied can be 20-30% of the annual fertilization amount.
The third fertilization is usually carried out when the grape seeds start to change color. At this time, more nutrients are needed for fruit expansion, coloring, dry matter, and sugar accumulation, but the main requirement is for phosphorus and potassium fertilizers. Foliar applications can use phosphorus and potassium fertilizers, potassium dihydrogen phosphate, and plant ash filtrate. The amount of fertilizer used is about 10% of the annual fertilization amount.
The above information (in parentheses) introduces the experience of three key fertilizations for grapes throughout the year. It is hoped that this article can provide you with some help!