Symptoms and Judgment of Tomato Deficiency
1 azotosis
The plant grows slowly, the old leaves are yellow-green in the early stage, and the whole plant is light green in the later stage, with small and upright leaves. Leaf veins changed from yellow-green to dark purple. The stalk becomes hard. The fruit becomes smaller.
2 Phosphorus deficiency
The back of the early leaves was purple-red, brown spots appeared on the leaves, the leaves were stiff, and the tips of the leaves were dark brown and dead. The veins gradually turn purple. The stem is slender and rich in fiber. Result delay
3 potassium deficiency
At the initial stage, the edge of the leaf appears with needle-point-sized dark-brown spots, and the rear stem also appears dark-brown spots, and the leaf margins are curled. The root system is underdeveloped. Young fruits are easy to fall off or have many deformed fruits.
4 calcium deficiency
The plant is thin and wilting, the edge of the heart leaf is yellow and shrunken, and the heart leaf is dead in severe cases. The middle leaf of the plant forms a dark brown spot, and the whole leaf is rolled up. Very underdeveloped. The fruit is prone to umbilical rot and hollow fruit.
Tomato deficiency remedy
Nitrogen deficiency: Remedy: mix ammonium bicarbonate or urea with 10 to 15 times the decomposed organic fertilizer and apply it to both sides of the plant and then cover the soil for watering. You can also spray 0.2% ammonium bicarbonate solution on the leaves.
Phosphorus deficiency: prevention and remedy: adequate phosphate fertilizer should be applied during the nursery and planting period, and 0.2% ~ 0.3% potassium dihydrogen phosphate solution can also be used for foliar spraying.
Potassium deficiency: prevention and remedy: on the basis of applying more organic fertilizers, apply enough potassium fertilizer. Potassium sulfate can be applied on both sides of the plant in a furrow, and then cover the soil after application. It can also be sprayed on the surface of 0.2%～0.3% potassium dihydrogen phosphate solution or 1% plant ash extract.
Calcium deficiency: prevention and remedial method: apply a proper amount of right ash, or spray 0.3%～0.5% calcium chloride aqueous solution on the leaf surface during the tomato growth period or when the plants are found to be deficient in calcium, spray every 3 to 4 days Apply 1 time, 2 to 3 times in total.
Plant growth requires a variety of nutrients, so appropriate fertilization during the planting process, otherwise it will lead to a decline in crop yields.
Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone
As a professional supplier of medical apparatuses and instruments, Suzhou Medtion International Trade Co., Ltd. is located in Zhangjiagang City, Jiangsu Province. We are wholly owned subsidiary of Jiangsu Redleaf Medcial Equipment Co., Ltd who is a professional Medical equipment producer for 30 years. We specialize in developing and producing stretchers,anti-coronavirus products, first-aid product, Funeral Products, ward products, Diagnosis Device, emergency rescue product and so on. We supply one stop purchasing of Medical Equipment for all overseas customers. Our products can be made in accordance with customers' requirements. With advanced technology, scientific production equipment, reliable product's quality, conform contract, stable credit and excellent service, we have got the production aptitude and passed all quality authentications successfully. We warmly welcome you to cooperate with us.
Oxygen Concentrator,Advanced Oxygen Concentrator,Medical Oxygen Generator,Home Use Oxygen Concentrator
Medton Medical , https://www.medtonmedical.com