Methods For Preventing And Controlling The Lack Of Trace Elements In FlowersAugust 24, 2021 ⚊ 3 Min read ⚊ Views 212 ⚊ TECH
1.Iron deficiency. The mesophyll of new leaves turns yellow, but the veins are still green and generally will not wither soon. But over time, the leaf edge will gradually wither. Correction method: spray 0.3-0.5% ferrous sulfate solution on the leaf surface in time, once every 10-15 days, continuously for 2-3 times.
2.Zinc deficiency. Generally, the plants are short, the new leaves lack green, the leaf veins are green, the mesophyll is yellow, and the leaves are narrow. Correction method: spray the leaves with 0.05-0.1% zinc sulfate solution, and each plant is mixed with 1g zinc sulfate and an appropriate amount of rotten fertilizer.4x8ft rolling benches
3.Magnesium deficiency. Start from both sides of the leaf edge of the old leaf to yellowing inward. With the aggravation of magnesium deficiency, the leaves show yellow spots, the leaves shrink, the root group is few, the leaves are small, the flowers are small, and the flower color is light, so the growth of the plant is inhibited. The correction method: spray the leaves with 0.2-0.4% magnesium sulfate solution for 2-3 times, or apply 2-3 grams of calcium magnesium phosphate fertilizer per plant.
4.Manganese deficiency. The leaves lose green and appear mottled spots; However, the veins are still green, and the color of the flowers is poor. The correction method is to spray the leaves with manganese sulfate solution of 0.1-0.2%. In order to prevent the damage, a mixture of 0.5% quicklime can be added.
5.Sulfur deficiency. Generally, the young leaves of flowers are yellow green first (not like nitrogen deficiency, the old leaves turn yellow first), the plants are short, the stems are thin and weak, the growth is slow, and the development of plants is inhibited. Correction method: apply 2-3 grams of potassium sulfate to each plant.
6.Calcium deficiency symptoms. The top bud is easy to be injured, and the leaf tip and leaf edge die. The leaf tip often bends into a hook shape, and the root system will also die. In serious cases, the whole plant will die. Correction method: water with 0.2-0.4% lime aqueous solution for 2-3 times, 20-30ml per plant each time.
Practice has proved that trace element deficiency is generally the result of long-term no soil change or long-term single application of nitrogen fertilizer. If you can use fertile pot soil, add soil regularly, and pay attention to the application of organic fertilizer, the general flowers will not lack trace elements.