First, the best concentration
Leaf spray fertilizer mastery five attention
Spraying the foliar fertilizer to grasp the optimal concentration can achieve twice the result with half the effort. If the concentration is too high, it is prone to fat damage or toxins; if the concentration is too low, the purpose of fertilization is not achieved. The optimum concentration of common fertilizer is 0.5-1% urea, 0.2-1% diammonium phosphate, 0.3-0.5% calcium chloride and 0.05-0.2% zinc sulfate.
Second, the best period
In general, the key period of fertilizer requirement, such as seedling stage, initial flowering stage or middle and late stage, is the best period for spraying foliar fertilizer. Choose the morning of the cloudy or sunny day and the evening spray, the effect is better, should avoid spraying in the hot sun, and should be sprayed in time after the rain.
Third, the best dosage
Spray 50-60 kg of fertilizer solution per acre, and increase the atomization degree of the sprayer as much as possible. Spraying the whole plant, the back of the new leaves and leaves should not leak. It is advisable to spray vegetables 2-4 times throughout the growing season.
Fourth, the best part
The effect of foliar topdressing is related to the speed at which the spraying elements move in the plant. The more mobile elements are nitrogen, phosphorus, potassium, sodium, etc. All the elements that can move but are not mobile are phosphorus, sulfur, etc. Some of the moving elements are iron, copper, manganese, molybdenum, and the like. The elemental fertilizer solution that cannot be moved or moved is better sprayed on new leaves.
Five, the best mixed spray
Mixed spraying of various foliar fertilizers, or mixed spraying of fertilizers and pesticides, can play a multi-effect effect, but the nature of the fertilizer and the nature of the pesticide should be clarified first. If the nature is reversed, never spray it. When preparing the mixed solution, it must be stirred evenly. Now it is used now. Generally, a fertilizer is first formulated into an aqueous solution, and then other fertilizers are directly added to the prepared fertilizer solution according to the amount. The solution is shaken and then sprayed.
Leaf spray fertilizer mastery five attention
Spraying the foliar fertilizer to grasp the optimal concentration can achieve twice the result with half the effort. If the concentration is too high, it is prone to fat damage or toxins; if the concentration is too low, the purpose of fertilization is not achieved. The optimum concentration of common fertilizer is 0.5-1% urea, 0.2-1% diammonium phosphate, 0.3-0.5% calcium chloride and 0.05-0.2% zinc sulfate.
Second, the best period
In general, the key period of fertilizer requirement, such as seedling stage, initial flowering stage or middle and late stage, is the best period for spraying foliar fertilizer. Choose the morning of the cloudy or sunny day and the evening spray, the effect is better, should avoid spraying in the hot sun, and should be sprayed in time after the rain.
Third, the best dosage
Spray 50-60 kg of fertilizer solution per acre, and increase the atomization degree of the sprayer as much as possible. Spraying the whole plant, the back of the new leaves and leaves should not leak. It is advisable to spray vegetables 2-4 times throughout the growing season.
Fourth, the best part
The effect of foliar topdressing is related to the speed at which the spraying elements move in the plant. The more mobile elements are nitrogen, phosphorus, potassium, sodium, etc. All the elements that can move but are not mobile are phosphorus, sulfur, etc. Some of the moving elements are iron, copper, manganese, molybdenum, and the like. The elemental fertilizer solution that cannot be moved or moved is better sprayed on new leaves.
Five, the best mixed spray
Mixed spraying of various foliar fertilizers, or mixed spraying of fertilizers and pesticides, can play a multi-effect effect, but the nature of the fertilizer and the nature of the pesticide should be clarified first. If the nature is reversed, never spray it. When preparing the mixed solution, it must be stirred evenly. Now it is used now. Generally, a fertilizer is first formulated into an aqueous solution, and then other fertilizers are directly added to the prepared fertilizer solution according to the amount. The solution is shaken and then sprayed.
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