Transforming low-yielding citrus groves in spring
At present, some varieties of citrus groves are mixed, with serious diseases and insect pests. Premature tree failures seriously affect quality and yield. These low-yield orange orchards should be quickly adopted and transformed to improve the orchard's yield and fruit quality.
First, the varieties are mixed. Severe diseases and insect pests lead to weakened tree vigor and reduced yield. The following reform measures can be taken.
1. High-risk varieties Some citrus varieties are currently mixed, which seriously affects the quality. These types of orchards can be replaced by high-risk methods. In the excellent disease-resistant, high-yielding mother tree, scion was adopted to carry out high-risk accession and increase the degree of improvement in the orchard. Specific approach: 1 using the original tree skeleton for high access. Two to three months before sprouting in spring, a single bud cutting method can be used. According to the size of the canopy, each plant has 5-10 shoots. If the canopy is tall, a small shoot multiplexing method can be used in the middle of the shoot to fill the gap. It is also possible to use a small bud to re-connect in September-October, until the spring of spring shooter before the second spring an anvil. 2 Tied up at the right time. Grafting in the spring, after the spring shoots are old, the summer shoots are unwound before germination. If grafted in late autumn from September to October, it is advisable to untie it before sprouting in the spring of the following year. 3 “Three Preventions†topping up in time. The “three defenses†are windproof, disease-preventing, and human-injured. After the anvil is cut, the buds on the shoots must be wiped once every 2-3 days to prevent nutrient consumption. When the summer shoots are 20-30 centimeters long, they should be picked up in time to encourage more shoots for new shoots, lay the foundation for a large number of autumn shoots, and speed up the formation of the canopy. Autumn shoots should not be short cut, otherwise it will affect the output of the following year. 4 Strengthen grafted fertilizer management and pest control. The rapid restoration of the canopy will lay the foundation for the results of the coming year.
2. Some orchards on the back of the anvil due to poor management, serious pests and diseases, causing root rot, resulting in rot of the trunk of the tree. Such as foot rot, Tianni, etc., caused premature aging tree vigor. For such orchards, restoration and enhancement of tree vigor can be achieved by increasing the yield by relying on an exchange of anvils. The specific methods are as follows: 1 Spring soil on the roots of rotted root plants, and use a knife to scrape the necrotic part, deep to the xylem, let the roots of the sun 1-2 days, and then coated with 20% metalaxyl or 80% phosphorus Aluminum, or 65% antiviral 100-200 times, until the liquid is dry coated with a layer of raw Tung oil, closed the disease. 2 Select disease-resistant rootstocks such as Citrus aurantium, and dry and thick 0.8–1 cm seedlings with 3-4 plants distributed in three different locations of the adjoining plants. First, around the base of the tree trunk 30 centimeters, the rootstock of the rootstock shall be planted diagonally, and the water shall be poured on the roots until the seedlings survive. 3 by the method: in the trunk on the contact area with a knife cross-cut a knife, and then cut up a knife up, deep to the xylem, and then the rootstock by the corresponding part, from the next upward oblique knife to the head, so that the formation of incisions Horseshoe-shaped noodles, and the incision is inserted into the formation of the backbone of the interface to secure, and finally tied with a nylon membrane moisturizing. 4 Management after living. Strengthen the management of fertilizer and water on rootstocks, promote thickening, and quickly form new roots to facilitate early restoration of tree vigor.
Hub motor kit, bafangzhong motor kit and complete E-bike
Electric Bike,Electric Bike Conversion Kits,Bafang Mid Motor Kits,Electric Scooter,Electric Bicycle,Ebike Battery
Changzhou Satidi Import and Export Co., Ltd. , https://www.guanjiejt.com