Fruit properties:
Zaojuyan belongs to European and American grapes and is quoted from Fujian Academy of Agricultural Sciences. The ears are large, about 600 grams on average, and the largest ears are 1500 grams. The fruit is round, purple-black, and has a lot of fruit powder. The weight of the grain is 13 grams. It is a large grape variety rarely seen in very early maturing varieties. It contains about 17% of soluble solids. The peel is thick, the flesh is hard, extremely resistant to storage and transportation, excellent quality, strong disease resistance, and relatively high yield.
Characteristics:
The early giant tender shoots and young leaves are slightly reddish green. The young leaves are densely covered with fluff, and the leaves are medium large and thick. The cultivation in Linqing, Shandong Province showed budding in mid-April, and flowering in mid-May. Under natural maturity, it was colored in late June, quickly colored, purple-black after maturity, and matured about one month earlier than Jufeng. Early maturity, the size of the fruit is the highest in Europe and the United States. The early giant grapes matured and went on the market long before the rainy season. It is basically a disease-free endangering fruit and is a green food that can be produced without bagging. Early giant grapes have broad prospects in winning the market.
Key cultivation techniques:
1. Sheds and hedges can be cultivated. After planting, leave 1 or 2 vines.
2. Leave 4 to 5 leaves for topping 3 to 5 days before flowering, and apply phosphorus and potassium fertilizers early to promote rapid fruit swelling and coloring.
3. The output should not be too high, it should be controlled within 2500 kg of grapes produced in 667 square meters.
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