Grape spraying foliar fertilizer, high yield, high quality
Appropriate period of spray fertilizer Generally speaking, foliar fertilizer can be applied during the whole growing season of grapes. It is best to spray “starting fertilizer†before the growth of new shoots, and spray “stable flowers and stable fruit fertilizer†during flowering and fruit setting. The fruit is swollen and sprayed with "strong fruit fertilizer".
Spraying weather and time foliar spray fertilizer, especially spraying Jinbao bacteria fertilizer, is greatly affected by wind, temperature and humidity. Within a certain range, the higher the temperature, the faster the fertilizer is absorbed by the leaves; the higher the humidity, the more the fertilizer is absorbed; the smaller the wind speed, the longer the wet time of the fertilizer liquid on the leaves, and the suitable temperature at sunny days (18°C~25°C) ), with a high humidity and a small amount of evaporation in the morning or evening.
The method of spraying fertilizer should be based on the young shoots, young leaves and the back of the leaves. The effect of spraying fertilizer is to make the mist particles fine, so as to spread evenly, and spray the leaves to all the wet, and the fertilizer liquid is dripping without falling. It can be sprayed with various fertilizers as needed, and it can also be mixed with pesticides (including plant growth regulators) to prevent pests and diseases. Li Qingzhong
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