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The peach-deficit mature leaves are red-purple or bronze-colored, and the leaves are long and narrow, with petiole, leaf dorsal and veins with purple.
Peach trees are prone to lack of potassium. The edges of the middle shoots and veins of the middle shoots turn green and wrinkle curls upwards. The leaf margin rolls upwards and curves backwards. The tips of the leaves turn pale greenish or reddish, and the leaf margins are scorched and necrotic. Branchlets are slender, internodes long, and few flower buds. The fruit is small and small early.
The demand for calcium from peach trees is smaller than that of apple trees. The leaves of peach trees have spots that are bleak, and the fruits of calcium-deficient peach trees are prone to soft rot.
Peach is sensitive to magnesium deficiency and shows light green spots or grayish green spots between the leaves of the leaves. It often spreads to the leaf margins and quickly turns brown to dark brown. Then the internodes and margins of the veins are necrotic, the leaves fall off and the top is rosette leaves. Clusters, thin and pale leaves, serious fruit can not be properly mature, fruit coloring is poor, bad flavor.
Peach trees lacked sulfur and green leaves yellowed, yellowing evenly on tip, severely tipped, with small and deformed fruit, pale, thick skin, and less juice.
The symptoms of copper deficiency in peach trees are similar to those in apples. The leaves have chlorotic malformations, twigs are bent, and colloidal bristles brown or russet rashes appear on the bark, and yellow or red gelatinous substances flow out during the rainy season. In severe cases, the leaves fall off and the branches die. The skin of the fruit also flows like a jelly-like material and becomes irregular brown spots. The fruits are easy to crack and easily fall off.
Peach trees are prone to iron deficiency. The leaves of the new shoots are chlorotic and chlorogenic, called "yellow leaf disease," and the degree of chlorosis increases from bottom to top. The incidence of summer and autumn shoots is more than that of spring shoots. The diseased leaves are mostly clear mesh-like mosaics, also known as "yellowflowers." Leaf disease." Severely yellow and white, leaf margin can also be burned, dry, early fall off, the formation of shoots or bald branches. This situation can, if repeated, lead to the decline of the whole plant.
In the absence of manganese in peach, the chlorosis between leaves and veins is light green, the main vein is still green, the veins are chlorotic, and there are spots, which develop from leaf margin to midrib. Severe veins turn brown and necrotic and the leaves are all yellow.
Peach trees lack zinc, new leaves become narrower, and chlorophyll forms variegated leaves, with varying degrees of crumpled leaves, short shoots, and rosette-like clustered leaves near the top internodes. The fruit is misshapen and has no practical value.
Peach nutritional imbalance symptoms
Peach lacks young leaves with small, thin, pale and thin leaves, severely deficient in nitrogen and reddish-brown leaf necrosis, yellow, green and red branches, small hard skin, high sugar content but low yield quality.