What concentration of foliar fertilizer is appropriate? Master the correct mixing ratio
What concentration of foliar fertilizer is appropriate? I hope experienced readers can help explain. Foliar fertilizer is an effective way to quickly supplement nutrients, relieve physiological diseases caused by a lack of nutrient elements in crops, promote healthy crop growth and increase yield. However, if the concentration of foliar fertilizer is not mastered correctly, it often causes crop damage, so growers...
What concentration of foliar fertilizer is appropriate? I hope experienced readers can help explain.Foliar fertilizer is an effective way to quickly supplement nutrients, relieve physiological diseases caused by a lack of nutrient elements in crops, promote healthy crop growth and increase yield. However, if the concentration of foliar fertilizer is not mastered correctly, it often causes crop damage. Therefore, Zhongdiwang has compiled the concentrations of commonly used foliar fertilizers, listed in detail below for readers' reference.
1. Concentration of urea as a foliar fertilizer:
The commonly used spraying concentration is 1%-1.5% (that is, add 1-1.5 kg of urea to 100 kg of water); within this range, for dicotyledonous plants, the concentration can be appropriately lower; for monocotyledonous plants, the concentration can be appropriately higher; at the seedling stage, the concentration can be appropriately lower; at the mature seedling stage, the concentration can be appropriately higher.
2. Concentration of superphosphate as a foliar fertilizer:
The commonly used spraying concentration is 2%-3%; after adding water to the fertilizer, stir thoroughly, let it stand for 24 hours, filter it, and take the clear liquid for spraying.
3. Concentration of potassium dihydrogen phosphate as a foliar fertilizer:
The commonly used spraying concentration is about 0.3%; the preparation method is to take 300 g of potassium dihydrogen phosphate and add 100 kg of water, and spray after fully dissolving.
4. Concentration of potassium sulfate as a foliar fertilizer:
The commonly used spraying concentration is 1%-1.5%.
5. Concentration of zinc sulfate as a foliar fertilizer:
The commonly used spraying concentration is 0.1%-0.2%; add a small amount of lime solution to the solution before spraying.
6. Concentration of borax (or boric acid) as a foliar fertilizer:
The commonly used spraying concentration is 0.2%-0.3%; when preparing the solution, first use a small amount of 45°C hot water to dissolve the borax, then add enough water.
7. Concentration of plant ash as a foliar fertilizer:
The commonly used spraying concentration is 3%-5%; add water to the plant ash, stir, let it stand for 15 hours, then filter before use.
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