Vine
The vine (Vitis vinifera) is a perennial deciduous plant. It is a woody plant with a very long life, including a long juvenile period (3-5 years) during which it cannot produce flowers. They are the most demanding woody plants, due to the need to keep them alive during times of cold or drought. Its economic importance is due to its fruit, the grape, which can be consumed directly or fermented to produce wine. The main nutritional needs of these crops are:
Macronutrients in vine
Nitrogen
This is an essential macro-element in the nutrition of the vine. It promotes budding, setting and flowering. A lack of nitrogen causes the lower leaves to turn yellowish, eventually drying out and displaying browner colours.
