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It is very suitable for fertilizing flowers, and urea can be used at any stage of flowering, but urea is highly fertilized, so pay attention to the dosage or the flowers will burn to death because of excessive fertility.
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Urea is more suitable for planting flowers, and it should be used in the seedling stage of flowers, because at this time the flower has a higher demand for nutrients, so it can be effectively replenished at this time.
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Urea is now the fertilizer with the highest nitrogen content, is a neutral nutrient, can be applied to most soils and flowers, and is easy to preserve, and relatively convenient to use. In particular, some plants that are used for foliage cultivation at home, such as sunflower, fortune tree, pothos, etc., need to be applied in time in order to maintain the green and luster of the leaves. It can also adjust the amount of flowers, so that the amount of flowers in the next year can be increased, such as peony flowers, roses, white palms, etc., but pay attention to the concentration, too high may cause the plant to grow.
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Urea can be used to fertilize flowers and plants, it is necessary to dilute urea, and the ratio of urea to water is preferably 1:100, so that the roots of flowers and plants will not be seriously burned.
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Yes, when watering flowers with urea, if you directly use urea water to water the flowers and roots, dilute the urea blended with water 5000 times, and water the flowers every other month, each time until the fertilizer water just flows out of the bottom of the pot. If urea is used as foliar fertilizer, mix 20 grains of urea with liters of water, spray the flowers once every half month, and spray the front and back of the foliar surface with fertilizer water each time, so that the foliar surface can be sprayed wet.
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Can be poured. When using urea as foliar fertilizer, mix 20 grains of urea with liters of water, spray flowers once every half month, and spray fertilizer water before and after the leaves each time to make the leaves moist.
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OK. AdBlue is an aqueous solution of urea, which is more pure than agricultural fertilizer urea. Sometimes it is convenient to use car urea, and it can also be used to water flowers and trees.
Usually the urea concentration used for watering flowers and trees is: For every 100 kilograms of water and car urea, do not have too high a concentration of filial piety, otherwise the flowers will be watered.
Urea is rich in nutrients, appropriate application of urea, conducive to plant growth, leaf color is green and bright, is a fast-acting fertilizer, often sprayed with concentration on the foliage, generally 3 days after spraying once into urea, can not be watered directly. Otherwise, the nutrients of urea are not lost after being absorbed by plants.
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Urea is rich in nutrients, appropriate application of urea, conducive to plant growth, leaf color is green and bright, is a fast-acting fertilizer, often sprayed with concentration of foliage, stupid wide generally 3 days after spraying once after injecting urea, can not directly bring potatoes watering. Otherwise, the nutrients of urea will not be lost after being absorbed by the plant.
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In addition to applying with soil and water, urea can also be applied at a ratio of 1 1000 leaves, but it is best to combine it with phosphorus and potassium fertilizer.
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Grass flowers are relatively weak in seedling stage, suitable for pure chemical fertilizers--- nitrogen fertilizers such as urea, while woody flowers are stronger, although organic fertilizers are used well, and the soil is improved.
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Generally speaking, after the flowers are potted, they can be fertilized after the potting period, but inorganic fertilizers should be applied diligently.
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Urea is suitable for all crops and all soils, and can be used as base fertilizer and top dressing, and can be applied in dry-paddy fields.
Urea is suitable for base fertilizer and top dressing, and sometimes also used as seed fertilizer. Urea is molecular before conversion, which cannot be adsorbed by the soil, and should be prevented from being lost with water; The ammonia formed after conversion is also volatile, so urea should also be deeply covered with soil.
The flower organs of the sparse fruit peach are sensitive to urea, but respond slowly to gamian. Therefore, urea flower and fruit thinning tests were carried out on peaches and nectarines abroad.
Urea is actually a fertilizer. It does not differ from phosphorus, nitrogen and potassium. When choosing to use urea for watering flowers, a smaller urea should be chosen to dilute it and water. The ratio is about 1:5000, otherwise the urea concentration is too strong to burn the roots of the plant.
After injecting urea, it cannot be watered directly. Otherwise, the nutrients of urea are not lost after being absorbed by plants.
Summer and autumn can be watered 2 to 3 days after urea pouring, and in winter and spring, it can be watered for about a week after the application of urea fertilizer.
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OK. Watering liquid fertilizer mainly contains sugars, organic acids and a small amount of amino acids, vitamins and minerals, which can supplement the nutrition of flowers, but can not completely replace the necessary base fertilizer and top dressing. If 3%O urea solution and 1%O potassium dihydrogen phosphate solution are used in turn for top dressing, the effect is better.
As a neutral fertilizer, urea is suitable for a wide range of soils and plants. It is easy to preserve, easy to use, and has little damage to the soil, and is a chemical nitrogen fertilizer that is currently used in large quantities. Ammonia and carbon dioxide are used in industry to synthesize urea under certain conditions.
Urea is easily soluble in water, 105 grams can be dissolved in 100 ml of water at 20, and the aqueous solution is neutral. There are two types of urea products. Crystalline urea is white needle-like or prismatic crystal, strong hygroscopicity, agglomerates after moisture absorption, and the moisture absorption rate is 12 times faster than that of granular urea.
Granular urea is a translucent particle with a particle size of 1 2 mm, which has a smooth appearance and significantly improved hygroscopicity. At 20 o'clock, the critical moisture absorption point is 80% of the relative humidity, but at 30 o'clock, the critical moisture absorption point drops, so urea should be avoided in the humid climate of midsummer. When hydrophobic substances such as paraffin wax are added to urea production, its hygroscopicity is greatly reduced.
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Not good, urea is the top dressing in the fertilizer, often the pot soil is yellow, are the lack of bottom fertilizer and cause the flower pole to be clamped or shortened flowering, most of the black fertilizer, the United States diamine potassium fertilizer, phosphate fertilizer is good, so that the pot soil becomes black, urea on the soil to make it easy to harden white, is not good for flowering?
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It is best to use less, because urea is a fertilizer, and it is not good to use too much.
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If you don't have to put this every day, you can put less of it. If there is too much urea, the flowers will be burned. will wither.
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Be careful to burn the flowers, just once.
In addition to applying with soil and water, urea can also be applied at a ratio of 1 1000 leaves, but it is best to combine it with phosphorus and potassium fertilizer.
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