What kind of fertilizer is good for grapevines
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What kind of fertilizer is good for grapevines
The main fertilizers applied to grapevines are base fertilizer and top dressing, which are used to ensure or compensate for the nutrients needed for grape growth and can also prevent diseases and pests. The fertilizers mainly used are phosphorus, potassium, boron, urea, etc., and organic fertilizers such as river mud can also be used.
When the leaves of young grapevines grow to 8-10 leaves, apply sulfate ammonium or urea once every 15-20 days, 20 grams per plant. After June, apply phosphorus and potassium fertilizers twice, with 15g of phosphorus and potassium fertilizers applied in holes around the plant 15-20cm away or in a circular trench about 10cm deep.
For grapevines that have started production, apply base fertilizer (spring fertilizer) compound fertilizer increased to 150 kilograms per mu, adding 50-100 kilograms of microbial bacterial fertilizer. Mix 0.3%-0.5% of natrium 778, nucleotides, chitin, alginates, trace elements, urea, and potassium dihydrogen phosphate and spray them in the middle of each top dressing.
Grapes are a high-quality, high-yield, and efficient fruit. During the growth and development process, there is often a shortage of elements such as iron, magnesium, sulfur, zinc, boron, and zinc. It is necessary to supplement trace elements such as calcium, magnesium, iron, zinc, silicon, and boron (such as calcium nitrate, ammonium calcium nitrate, potassium calcium nitrate, ferrous sulfate, magnesium sulfate, potassium magnesium sulfate, ammonium sulfate, potassium silicate, borax, boric acid, etc.) in time. In high-quality and high-yield grape cultivation, do not use too many hormones.
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