(2) Pay attention to the alternation of different fertilizers and the combination of various fertilizers.
(3) When spraying, the front and back of the blade should be sprayed and sprayed evenly. Since the absorption capacity of the back side of the blade is 5 to 6 times stronger than that of the front side, it is particularly important to pay attention to the spraying of the back side of the blade.
(4) Spray multi-functional foliar nutrient solution, read the instructions carefully, pay attention to the application methods, concentration, time and other related issues, and do not change them at will. At the same time, we must pay attention to the production license number, manufacturer, national registration number, trademark, date of manufacture, etc., but also pay attention to whether there is precipitation, mildew and other phenomena.
(5) The fertilizer should be diluted with water, and clean water, river water, lake water and pond water should be used. Water and turbid water should not be used.
(6) It is suitable to spray after 4 pm or in the evening on cloudy and sunny days. If it is raining within 24 hours after spraying, it must be re-sprayed. Under normal application conditions, one fertilization unit is generally sprayed 2 to 3 times to have a significant effect. Therefore, after the first spraying, it needs to be sprayed once every 3 to 5 days.
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