When the supply of certain nutrients is insufficient, corn will cause physiological changes due to malnutrition, resulting in corresponding tissues and sites showing certain symptoms. If it can be found and corrected in time, it can control and reduce its harm, if not timely In serious cases, it will cause incalculable losses. In maize production in Nanyang City, the following physiological diseases occur due to lack of nutrients: Nitrogen deficiency: Slow growth at seedling stage, short and thin plants, yellow-green leaves. The yellowing of the leaves starts from the lower old leaves. The tips of the leaves begin to yellow and gradually expand along the midrib to form a wedge-shaped V-shape. The middle part of the leaves fades green to yellow and the veins are slightly reddish. When the entire chlorosis turns yellow, the leaf sheath will turn red, and soon the entire leaf will turn brown and die. If the maize is still unable to absorb enough nitrogen at the later stage of growth, the plants will be small and weak, the leaves will turn yellow, the heading period will be delayed, and the ear will not be able to develop normally, resulting in a reduction in yield. Phosphorus deficiency: The seedling root development is poor, the growth is slow, and the stalk is weak. The most obvious feature is that the tip and the leaf margin are purple during the seedling period, and the rest are green and grayish green, and the leaves are dull. As it continues to develop, the leaf margins curl and the tip of the leaf turns dark purple and dead. Phosphorus deficiency can lead to slow withdrawal of filaments, short and curved ears, severe alopecia, irregularly arranged grains, incomplete grain, and delayed ripening. Potassium deficiency: poor root development and slow plant growth. The old leaves of the lower part of the leaves are yellowing, and the leaves are red and scorch, and they gradually spread to the veins of the entire leaf. They produce brown stripes along the veins. They gradually dry up and burn like necrosis, but the upper leaves remain green and yellow when severe. The phenomenon can gradually develop upwards from the lower old leaves. Potassium-deficient maize plants are susceptible to disease, easy to inflection, poor ear development or baldness, small grains, and reduced yield. Zinc deficiency: usually occurs within two weeks after emergence, severe zinc deficiency will appear albino seedlings. At the 3-5 leaf stage, white seedlings emerged, and the young leaves were pale yellow to white, especially in the leaf base at 2/3, with pale white stripes on the leaves, and an albino broadband tissue area on both sides of the posterior midvein. The midrib and the edges are still green, sometimes the leaf margins and leaf sheaths are brown or red. In severe cases, the young leaves of the seedlings appear fine white spots, and rapidly expand to form partial white areas or necrotic plaques, necrotic mesophyll, translucent leaves, the wind easily broken. In the middle and late internodes, the plants are short and the growth is hindered. The result is that the spikes become empty stalks, or the heads are severely bald, and even dry and dead. Boron deficiency: The plants are short, irregular white spots appear between veins of young leaves, and the spots can be fused into white stripes and are weak, white, or even dead, and the growth points are inhibited. In severe cases, the new leaves are long and thin, and the young leaves are difficult to spread and the leaves are clustered. Internode elongation was inhibited or heading and spinning could not be performed. The ear was degenerately deformed. The ear near the stem was shrunk and shrunk. The grain was sparse and irregularly distributed. The formation accounted for 1/3 of the entire ear and the top grain was open. Deficiency of molybdenum: First of all, chlorotic or macular symptoms appear on the old leaves. The tips of the leaves are prone to scorch. In severe cases, root growth is inhibited, resulting in the death of large areas of plants. Prevention and remediation: The key to the physiological disease of corn is to supply fertilizer in stages according to the target yield and fertilizer demand. When some kind of physiological disease occurs, it is timely corrected by foliar spraying fertilizer. The fertilizers that can be used for corresponding correction include urea, potassium dihydrogen phosphate, zinc sulfate, borax, and ammonium molybdate, etc. You can get effective relief.
Medical Cold Patch
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Throat Pain Relief Patch
[Name] Medical Cold Patch
[Package Dimension] 36 round pieces
The pain relief patch is composed of three layers, namely, backing lining, middle gel and protective film. It is free from pharmacological, immunological or metabolic ingredients.
[Scope of Application] For cold physiotherapy, closed soft tissue only.
[Indications]
The patches give fast acting pain relief for acute and chronic tonsillitis.
[How To Use a Patch]
Please follow the Schematic Diagram. One piece, one time.
The curing effect of each piece can last for 6-8 hours.
[Attention]
Do not apply the patch on the problematic skin, such as wounds, eczema, dermatitis,or in the eyes. People allergic to herbs and the pregnant are advised not to use the medication. If swelling or irritation occurs, please stop using and if any of these effects persist or worsen.notify your doctor or pharmacist promptly. Children using the patch must be supervised by adults.
[Storage Conditions] Store below 30c in a dry place away from heat and direct sunlight.