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How to prevent and control root-knot nematode disease when growing citrus?
Citrus root-knot nematode disease damages the citrus root system, causing root galls of various sizes to form on the roots, and fibrous roots to clump together into a cake-like mass, which hinders the root system's ability to absorb nutrients and reduces the number of absorbing roots. When citrus is first infected and damaged by root-knot nematodes, the decline is not very obvious in the canopy
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Experience Sharing on Root Cutting to Promote Root Growth in Shatang Mandarin
Applying staged root cutting to promote root growth in Shatang mandarin trees can promote root expansion and guide roots to grow downward, improve the root ecological environment, help restore tree vigor, expand the canopy, increase the number of effective branches and total leaves, thereby increasing citrus yield and improving quality. This is a technique for maintaining high quality, high yield and stable production in citrus.
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How to Choose a Nursery Site for Cultivating Sugar Mandarin Grafting Rootstock Seedlings
The nursery site should be chosen in a place with convenient transportation and good conditions for water and electricity supply, somewhat distant from mandarin orchards or separated by a natural barrier, to reduce infection by dangerous pests and diseases. The terrain is required to be flat, with a slope not exceeding 5 degrees, and with no air or water pollution nearby. The soil should preferably be
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What are the precautions for applying pig manure to the roots of Shatang mandarin?
Fertilizer application rates for Shatang mandarin at various stages: Base fertilizer: 10 kg chicken manure or pigeon manure, or 2.5 kg peanut bran, or 25 kg pig manure, plus 0.35 kg superphosphate, plus 0.25 kg potassium chloride or 0.30 kg potassium sulfate. Pre-bud fertilizer: 0.25 kg urea, plus 0.25 kg superphosphate
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Can pig manure be piled up after root digging during the dormant period of sugar mandarins?
Q: May I ask whether pig manure can be piled up after root digging during the dormant period of sugar mandarins? A: From the biological characteristics of the sugar mandarin fruit tree, there is no relatively clear so-called dormant period. What you may understand as the so-called dormant period probably refers to the plant entering the flower bud differentiation stage after the onset of winter, that is
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Control Methods for White Root Rot in Hawthorn Cultivation
Hawthorn white root rot is an important root disease of hawthorn trees in old hawthorn-producing areas and is the main cause of death of old and weak trees. I. Symptoms After infection, the roots are entangled with white to grayish-white silk-like nets, which are the pathogen's rhizomorphs, and a grayish-white thin downy substance is produced at the root crown area on the ground. Leaves become smaller and leaf margins scorch, and some or all of the small branches and large branches die back.
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Control methods for round spot root rot in hawthorn
Round spot root rot is one of the important causes of hawthorn tree death. 1. Symptoms: the fibrous roots first turn brown and die, and reddish-brown round lesions form around the base of the fibrous roots. In severe cases, the lesions merge, and the rot penetrates deep to the xylem, causing the entire root to turn black and die. 2. Transmission
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How to prevent and control soybean root rot? These methods you need to master
1. Select disease-resistant varieties. 2. Rotate with non-host crops such as corn, millet, and sweet potato. 3. When sowing, apply more farmyard manure, potassium fertilizer, phosphate fertilizer, etc. 4. When sowing, apply metalaxyl granules so that soybean roots can absorb them to prevent root infection. 5. Before sowing, use seed weight
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What are the control methods for peanut root rot?
In recent days, many farmers have brought peanut leaves to the shop to ask what is going on. On the surface, the leaves are yellowing, and some farmers think it is a lack of nutrients, but in fact it is mainly caused by root rot. A while ago, rain was frequent, making the soil damp,
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Causes of Deformed Sweet Potato Storage Roots and How to Prevent Them
During the cultivation of sweet potatoes, we have all encountered the phenomenon of sweet potatoes forming some deformed storage roots. Some grow "misshapen," some are big at the head and small at the tail, forming burdock roots, some develop cracks, and some storage roots become hard, as if "red blood streaks" have grown inside them, and so on. These phenomena
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