Peach calcium deficiency symptoms
Peach is sensitive to calcium deficiency.To peach breeding in calcium nutrient solution, the initial symptoms is to reduce the top growth.The size of the old leaves and normal leaves, but the younger leaves smaller than the normal.Leaves thick, without any faded green phenomenon.Later, the young prefrontal areas present large chlorosis, necrotic areas, particularly short lateral branches and new shoots.In the main veins on both sides of organization has a characteristic of large necrotic spots.Lao ye then faded green edges and damaged.The last leaf fall off from the tail end, top tip end withered.
Orchard calcium can weaken TaoGen growth, mainly manifested in the apices of the radicle growth stagnation, and cortex continues to thicken, gives birth to many new close at the root root;Severe calcium deficiency, dying young root, near the dead root and grow many new root, form a stubby branches of the root, the points of crop root.
Peach calcium method
Peach tree in the process of growth and development, need of nitrogen, phosphorus, potassium, magnesium, sulfur, iron and other 16 kinds of essential elements, calcium is one of the essential elements in the, in the field is not short of calcium, most don't lack calcium in orchard soil.Just in the peach calcitonin transportation speed too slow, sometimes by nitrogen excess, DongJian undeserved, cause the pull force caused by temperature high transpiration fruit and leaf severe calcium deficiency affects the quality of products.Peach calcium supplements should be worked out in two stages: the first stage 2-5 weeks after Xie Hua varieties with AnJiSuanGai and calcium nitrate concentration with two over one thousand to three advisable first meet TaoGuo hardcore period demand for calcium object, leaves and young fruit number not less than three times.The second stage should be done in a week before the TaoGuo expands, if daytime temperatures of 25 ℃ or above, at this time should not be injected calcium, choose the 10 o 'clock, after 4 o 'clock in the afternoon, appropriate to add some show the agent, to promote absorption.This time makes up the calcium primarily serve with fruit enlargement, the skin filling calcium, improved skin hardness, it is advisable to second of the two.
