In the whole growth period of tomatoes, appropriate amount of formula should be applied according to their growth characteristics to ensure high quality and high yield of tomatoes. The method of fertilization is:
During the planting period, the amount of high-quality farmyard manure, urea 10 kg, ammonium phosphate 10 kg, superphosphate 40-50 kg, or a sufficient amount of high-quality soil-fertilizer and potassium sulfate ternary compound per acre. 25-50 kg of fertilizer and 10 kg of urea.
Fertilization during the strong period When the tomato seedlings grow to 5-6 leaves, if the leaves are light, the foliar spray can be applied. Commonly used fertilizers are 300 times urea solution, 300 times potassium dihydrogen phosphate solution, 0.1%-0.3% potassium sulfate compound fertilizer solution. Spray once every 10 days during the strong period. In addition, foliar spray fertilizer can be combined with the control of pests and diseases.
In the result period, when the diameter of the first fruit is as long as 1.5-2.5 cm, it is topdressed and watered, generally 15-20 kg of ammonium nitrate per acre, 20-30 kg of superphosphate, or 5 kg of urea, sulfuric acid. Potassium compound fertilizer 10-20 kg, water applied to the ground after application. When the second and third fruits grow to a diameter of 3 cm, they are subjected to the second and third fertilization respectively, and 10 kg of urea per acre and 15-20 kg of potassium sulfate compound fertilizer are used for the first time. In the fruit-bearing period, it can be combined with spraying to carry out the top dressing. The fertilizers such as potassium dihydrogen phosphate, grass liquid fertilizer and superphosphate can be used to improve the coloration and quality of the fruit. Source: Qinghai Science and Technology News
During the planting period, the amount of high-quality farmyard manure, urea 10 kg, ammonium phosphate 10 kg, superphosphate 40-50 kg, or a sufficient amount of high-quality soil-fertilizer and potassium sulfate ternary compound per acre. 25-50 kg of fertilizer and 10 kg of urea.
Fertilization during the strong period When the tomato seedlings grow to 5-6 leaves, if the leaves are light, the foliar spray can be applied. Commonly used fertilizers are 300 times urea solution, 300 times potassium dihydrogen phosphate solution, 0.1%-0.3% potassium sulfate compound fertilizer solution. Spray once every 10 days during the strong period. In addition, foliar spray fertilizer can be combined with the control of pests and diseases.
In the result period, when the diameter of the first fruit is as long as 1.5-2.5 cm, it is topdressed and watered, generally 15-20 kg of ammonium nitrate per acre, 20-30 kg of superphosphate, or 5 kg of urea, sulfuric acid. Potassium compound fertilizer 10-20 kg, water applied to the ground after application. When the second and third fruits grow to a diameter of 3 cm, they are subjected to the second and third fertilization respectively, and 10 kg of urea per acre and 15-20 kg of potassium sulfate compound fertilizer are used for the first time. In the fruit-bearing period, it can be combined with spraying to carry out the top dressing. The fertilizers such as potassium dihydrogen phosphate, grass liquid fertilizer and superphosphate can be used to improve the coloration and quality of the fruit. Source: Qinghai Science and Technology News
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