Appearance diagnosis of apple tree nutrient element deficiency

Nitrogen-deficient plants are short, with light or red leaves, small branches, few flowers, full seeds, and low yield.

When phosphorus is deficient, the young shoots and roots of the plant grow slowly, the leaves are small, and the leaves are dark green. Apple tree leaves are small, with bronze dark green to purple, few branches, few leaves and small fruit.

When potassium is deficient, the plants are poor in drought resistance and cold resistance. The leaf cells are disintegrated, the chlorophyll is destroyed, the color of the leaves turns yellow, and they are gradually necrotic; or the leaf margin is burnt and the growth is slower. The middle and lower leaves of the new branches of apple trees have dark purple at the beginning, and then scorch, shrink and curl, and the apples are not easy to color later.

Calcium deficiency symptoms are first seen in growth points and young leaves. When calcium deficiency occurs, the plant is short, the cell wall melts, the tissue becomes soft, and the leaves sag and stick. In severe cases, the leaves are deformed or greenish, and necrotic spots appear on the edges of the leaves, but the old leaves remain green. Calcium-deficient apples have bitter acne, and there are small brown necrotic spots on the entire apple surface.

Magnesium is deficient in magnesium, and the leaves usually lose their greenness. The color of the veins at the tip and edge of the leaves lightens, changes from light green to yellow to purple, and then expands to the base and center of the leaves, but the veins remain green and form on the leaves. Clear mesh veins. Apple tree leaves light green or gray-green between the veins of older leaves that year, and then turn into yellow-brown, dark brown, and necrosis.

When sulfur is deficient in sulfur, the first is the bud yellow flowers or tender leaves chlorosis, and then the yellowing symptoms gradually extend to the old leaves and damage the whole plant.

Iron deficiency is manifested as chlorosis. At the beginning, the leaf veins of the young leaves are green and yellow, and the veins remain green. Afterwards, the leaves are completely green, and sometimes the whole leaves are yellow-white at the beginning. Due to the low mobility of iron in the body, the new leaves generally appear to be green, while the old leaves remain green.

When boron is deficient in boron, the top buds stop growing, gradually wither and die, the root system is underdeveloped, the leaf color is dark green, the leaf shape is small, thick, shrunken, the plant is dwarfed, the flower is not well developed, the fruit and ear are not solid, the bud is off . Apple's "fruit shrinkage disease" is caused by boron deficiency.

When manganese is deficient in manganese, there is a lack of green between the veins, which is accompanied by the occurrence of small necrosis points. Lack of green will appear in young or old leaves, depending on the plant type and growth rate. The disease begins with Xinye.

When zinc is deficient in zinc, the growth is inhibited and the leaf veins of the young leaves become green. The chlorosis part was light green at first, and then developed into yellow or even white. Zinc deficiency in apple trees is characterized by small leaves and clusters.

When copper is deficient in copper, the plants grow thin and weak, the new leaves are chlorotic and yellow, withered and withered, the tips of the leaves are white and curly, the edges are grayish yellow, and necrotic spots appear on the leaves.

When molybdenum is deficient, the plant grows poorly, the plant shape is short, the leaf veins lack green, or the leaves are twisted.

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Dmt Dimethyl Tryptamine

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Tryptamine CAS:61-54-1 is a monoamine alkaloid. It contains an indole ring structure, and isstructurally similar to the amino acid tryptophan, from which the name derives. Tryptamine

CAS:61-54-1 is found in trace amounts in the brains of mammals and is hypothesized to play a role as a neuromodulator or neurotransmitter.It is used in biological and pharmaceutical intermediates,with vasoactive, possibly neuromodulatory and other functions.

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Other name	1H-Indole-3-ethanamine;2-(1H-Indol-3-yl)ethanamine;3-(3-indolyl)ethylamine;4-2-Indol-3-yl-aethylamin;2-indol-3-ylethylamine;2-indol-3-yl-ethylamine;3-(2-aminoethyl)indole;
CAS	61-54-1
Molecular formula	C10H12N2
Molecular weight	160.22
Appearance	White or light yellow crystal
Purity	98%
Application	Organic intermediate;
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