The choice of fertilizers is mainly to supply the missing medium and trace element fertilizers. Do not choose the so-called "Tenquan" large rehydration, which is expensive and non-targeted, and the effect is not good. Therefore, it can be based on simple fertilizer. In view of the complexity of the micro-fertilizer market, when individual farmers purchase micro-fertilizers, one must choose the brand to buy genuine products, and the second is to jointly purchase the group.
If the concentration is too low, the effect will not be achieved. If it is too high, it will cause fertilizer damage. The optimum concentration will vary depending on the target crop, growth period and element type.
The number of sprays of fruit trees is usually sprayed twice to be effective; in case of disasters or obvious symptoms, spray 3-5 times.
Spraying leaves, stems and young fruit can be sprayed, but the spraying of flowers and buds should pay special attention to the concentration. The back of the leaves has more stomata than the front and absorbs more.
Spray time should avoid wind, rain and noon time. It is advisable to go before 10 o'clock in the morning and after 4 o'clock in the evening.
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