During the summer high temperature of kiwifruit, the leaves wilted during the sunny hours from 12 noon to 16 o'clock in the sunny day. There are two main reasons: First, high temperature and drought, including dry climate and soil drought. This situation should be timely and timely irrigation in the morning and evening, wilting can be lifted; Second, the root system of root rot, root knot nematode disease, etc., resulting in damage to the root system, there pathological wilting. Once it is found, it should be inspected and rooted. It is a pest and disease hazard. The branches and leaves should be cut off appropriately, some or all of the fruit should be removed, and the agricultural anti-120, fungicides should be used to irrigate the roots. In the case of root-knot nematode disease, 10% grams of pyrethroid or quercanthane insecticide should be added when roots are poured. Anti-sunburn Sunburn is a common physiological disease in the summer of kiwifruit. Severe sunburn can cause a large number of fruit drop and leaf litter injury, thus affecting the annual output and flower bud differentiation in the following year. Prevention of sunburn, in addition to adopting high temperature irrigation, reasonable summer shear, maintaining appropriate leaf-fruit ratio, control of fruit load and other measures, in the young fruit period, spray twice with Merrill Lynch (every 15 to 20 days), or The bagging of fruits exposed to the periphery is effective in preventing sunburn and other physiological diseases and improving fruit quality and product rate. Shade protection The solution to the problem of shading is to promote less shoots and shoots, and to reduce the number of branches left on the tree. For the peripheral branches (outside of the second wire) of the rack, repeated toppings when the result branches are 2 to 3 leaves; sparse vegetative branches, short and thin branches and temporary result branches occurred under the rack, and removed; old yellow leaves were removed. leaf. By adopting the above measures, a high-yielding tree-like landscape of “no twist on the tree, a line between the rows, a flower shadow under the tree (light transmittance of about 30%), branches and branches of the sun†is achieved. Wind damage Windy weather has a great deal of damage to the kiwifruit trees. The only solution is to do a good job of tying the vines. The tied vines shall be tied and not tied, the branches shall be drawn and bound to the wire on the shelves, and the branches shall be in multiple branches and the branches shall be tied; the single branches shall be brought to the plane and the inner lychees may not be tied. Tieman techniques should be promoted "8" type of binding method, that is, after the cloth is wound on the wire twice, then the branches are tightly attached to the cloth. Xi'an Double H Health Technology Co., Ltd , https://www.dhextract.com
Kiwi fruit production in summer to do four defenses
Anti-wilt