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What are the key field management techniques for Eucommia ulmoides?
Planting: After Eucommia ulmoides is planted, the root system has not yet taken firm hold, so intertillage should be shallow rather than deep, and weeds must be removed thoroughly. If intercropped with crops, it can be combined with the intertillage and weeding of the crops. Before the young Eucommia ulmoides plantation closes its canopy, the forest should be cleared and intertilled once each summer to promote the growth of young trees. Mature Eucommia ulmoides
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Detailed Explanation of Control Methods for Root Rot in Saposhnikovia divaricata Cultivation
(1) Damage situation and symptoms: Root rot mainly affects the roots of Saposhnikovia divaricata. In the early stage of infection, the fibrous roots become diseased, and the diseased roots turn brown and rot. As the disease progresses, the lesions gradually spread to the stem, the vascular bundles are destroyed, losing their water-transporting function, leading to root-zone rot, and the leaves wilt
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Control Methods for Root Rot in Salvia miltiorrhiza Cultivation
1. Hazard symptoms: Root rot of Salvia miltiorrhiza occurs in hot and rainy seasons and damages the plant roots. In the early stage, only a few roots or part of the underground rhizome are affected first, gradually spreading to the entire root system. After the roots are damaged, wet rot occurs, the outer skin turns black, and the aboveground part develops
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Control of Root-Knot Nematode Disease in Balloon Flower
Along with the adjustment of the industrial structure, the balloon flower planting area in our district has been continuously expanding. However, due to years of continuous cropping, the occurrence of root-knot nematode disease has shown a spreading trend, causing balloon flower to lose its commercial value and reducing economic returns. 1 Disease symptoms After balloon flower is infected by root-knot nematodes, when the disease is mild
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What are the control methods for apple tree root rot?
Apple trees often suffer from root rot. Because the root system is buried in the soil, when the disease is initially contracted or mild, it is either not discovered or, once discovered, not accurately diagnosed, so the right treatment is not applied. In mild cases this leads to weak tree vigor and reduced yield and quality; in severe cases it causes the death of the plant, or even the loss of the entire orchard.
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Detailed Guide to the Method of Cultivating Mango Grafting Rootstock Seedlings
In monoembryonic mango varieties, a single seed produces only one seedling, while polyembryonic varieties can germinate and grow into multiple seedlings. A monoembryonic seed has only one embryo (a sexual embryo); the embryo is large, and the single seedling it develops into is vigorous. A polyembryonic seed has multiple embryos; the embryos are smaller, and the multiple seedlings they develop into are weaker
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Key Points of Post-Grafting Management Techniques for Top-Grafting and Variety Conversion of Citrus
1. Do well in cutting the rootstock stubs. After using side grafting with exposed buds, the rootstock stubs should be cut or sawed off. This should be done in two steps. First, leave about 15cm of rootstock stub above the graft union. After the new shoots have become lignified, cut the stub flush with the graft union and smooth the cut surface with a knife. 2. Do well in removing sprouts. After top-grafting, because the apical dominance has been removed,
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How to control crown gall disease of jujube trees with good results
This disease is a bacterial disease and occurs in jujube-growing areas in the north. After the roots are damaged, the aboveground growth is slow and the plants are stunted; in severe cases the leaves turn yellow and fall early, and the branches weaken or even die, but it rarely causes the whole plant to die. Besides harming jujube trees, the pathogen also attacks
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Detailed Explanation of the Method for Raising Jujube Seedlings by Root Cutting and Returning to the Nursery
To raise jujube seedlings by root cutting and returning them to the nursery, first select plants of excellent quality and free from pests and diseases as mother plants. Before budbreak, dig a trench 30-40 cm wide and 40-50 cm deep around the outer edge of the mother plant's canopy to cut the jujube roots, and use scissors to trim the cut root wounds smooth. Apply decomposed organic fertilizer, about 75 kg per plant, mix it with moist soil, fill it into the trench and tread it firm. If conditions permit, it is best to irrigate thoroughly once. Then cover with a layer of loose soil to conserve moisture. After the jujube roots are stimulated, a large number of clustered root-sucker seedlings will appear on the ground near the trench in May-June. Management of the root-sucker seedlings should be strengthened in a timely manner. After budbreak, remove excess buds; the principle is to remove the dense and keep the sparse, and remove the weak and keep the strong, generally with a plant spacing of about 15 cm, so as to ensure normal growth of the seedlings.
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Experience Sharing on Raising Jujube Sucker Seedlings by Returning Them to the Nursery
Using jujube sucker seedlings from jujube orchards and returning them to the nursery is a widely applied method for cultivating strong jujube seedlings. (1) Land preparation: choose flat loam soil with a water source as the nursery. Plow deeply 20 cm and apply sufficient farmyard manure as base fertilizer. Make beds 90 cm wide and 10 m long, oriented north-south, with 2 rows of seedlings per bed.
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