Application of base fertilizer during planting period Before the transplanting of tomato seedlings, 1000 kg of farmyard manure, 10 kg of urea, 10 kg of ammonium phosphate, 40-50 kg of superphosphate can be applied per mu, or 1,000 kg of high-quality soil fertilizer and three parts of potassium sulfate can be applied. Yuan compound fertilizer 25 ~ 50 kg, urea 10 kg. Fertility in the Zhuang yan period When the tomato seedlings grow to 5 to 6 leaves, if the leaf color becomes light, foliar spray can be applied. The commonly used fertilizers include 300 times urea solution, 300 times potassium dihydrogen phosphate solution, 500 times gexin liquid fertilizer, and 0.1% to 0.3% potassium sulfate compound fertilizer solution. The fertilizer is sprayed every 10 days or so in the Zhuang wolfberry period. Surface spray fertilizer can be combined with the prevention of pests and diseases at this stage. During the result period, the top dressing of the first fruit of the tomato was grown to a diameter of 1.5 to 2.5 cm and watered. Generally, the amount of ammonium nitrate was 15 to 20 kg per mu and 20 to 30 kg of superphosphate; or 5 kg of urea and potassium sulfate were used. 10-20 kg of compound fertilizer is applied after the ground is applied. When the diameters of the second and third fruits are as long as 3 cm, the second and third fertilizations are performed respectively. Each mus of urea can use 10 kg of urea and potassium sulfate compound fertilizer of 15 to 20 kg. The method of fertilization is the same for the first time. In the full fruit period, spraying fertilizer can be used in combination with spray spraying, and potassium dihydrogen phosphate, glutinous liquid fertilizer and superphosphate can be sprayed, which is beneficial to the coloration and quality improvement of fruits. Bathing Brush,Removable Bath Brush,Massage Bath Brush,Round Bath Brush Yangzhou Tongfun Red International Trading Co,Ltd. , https://www.i-ecbio.com
No matter whether the tomatoes are cultivated in open or protected areas, phosphorus deficiency and potassium deficiency are often caused by improper fertilization time, resulting in debilitating plants, resulting in deformities and other symptoms, resulting in low yield, poor quality, and poor efficiency. Therefore, in the whole growth period of tomato, according to its growth characteristics, timely fertilization should be carried out during the planting period, the vigorous growth period and the result period to ensure high quality and high yield of tomatoes.