During production, we note that most of the crops are pollinated in the morning, such as melons, beans, etc. Normal pollination and fertilization of crops usually takes several hours to complete. In addition, it must not be wetted by rain. Because the pollen is lost to vitality after being wetted by rain, it cannot pollinate and fertilize, resulting in “flowering but not realizing†and fruitlessness that directly affects the yield of crops. Most of the crops that can be pollinated and pollinated, such as melons, legumes, corn, wheat, and other crops, will undergo “three sprays†if they are flowering, or “three sprays†when the crops have not yet been pollinated and fertilized. Easy to be fertilizer solution, liquid spray wet, it will lose its vitality.
The flowers that thanked are never opened again. Flowers that are not given flour but pollinated will not be opened again. Therefore, for crops that rely on flowering and pollination to produce fruit, if it is necessary to “three sprays†during the flowering period, it should be carried out after the crop has been fertilized and fertilized. Do not engage in “artificial rainfall†when it is pollinated and fertilized, generally in the afternoon 3 The crops have been pollinated and fertilized. For crops that are above ground and underground, they are generally not subject to this condition. However, if you want to keep an eyeful, you must do it after 3:00 p.m. to 4:00 p.m.
The concentration of “three sprays†should not be too large, and do not exceed the maximum concentration value to avoid making the crops suffer from fertilizer damage. The mixed spray fertilizers should be strictly matched with the proportion concentration; the acidic fertilizers should not be mixed with alkaline fertilizers to avoid The chemical reaction will lose its effect; the "three sprays" fertilizer should be used on the day after the end of the day, so as not to reduce the use of effects.
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