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Are triploid large-leaf black locust and large-leaf fast-growing locust the same variety?
1. The tetraploid large-leaf black locust is an excellent variety selected through years of dedicated research and experimental comparison from among several superior polyploid black locust clones introduced from abroad. The tetraploid large-leaf black locust is an artificially induced tetraploid plant, with the characteristics of fast growth, large leaves and high biomass. Its leaf width is more than 2 times that of the common black locust, and its compound leaf dry weight, single leaf dry weight and total leaf dry weight are each 1.5 times or more than those of the common black locust. Compared with the common black locust, the tetraploid large-leaf black locust has a denser crown, thicker branches and a stronger photosynthetic capacity.
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Control Methods for the Large Button Mushroom and Xylaria (Cracked Cap Fungus)
The large button mushroom and Xylaria (also known as chicken-foot fungus) are both major diseases of edible mushrooms. Both are parasitic diseases that live on the mycelium of edible mushrooms and absorb nutrients from it. Once the disease occurs on the mushroom logs or beds, the infected parts of the logs or beds will no longer produce mushrooms. The control methods are described below: 1. Large button mushroom. This pathogen mainly infects oyster mushrooms, shiitake mushrooms, enoki mushrooms, etc. 1. Symptoms. The disease first appears on the mushroom logs or beds as small white round granules
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Detailed Explanation of Large-Scale Cultivation Techniques for Belgian Azaleas
Although the Belgian azalea was introduced from Europe, it has a strong Chinese "bloodline." From 1838 to 1939, Robert Fortune and other British and American botanists came to our country several times, bringing early-flowering azalea varieties such as the Jiangnan azalea into Europe, where they were crossed with East Asian azaleas, peony azaleas, hairy white azaleas and other varieties, producing many excellent cultivar groups. Because the breeding center at that time was located in Ghent, Belgium, this azalea group is customarily called "Belgian azalea." After being introduced into our country
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Detailed Explanation of the Seedling Raising Methods and Techniques for Large-Leaf Privet (Ligustrum lucidum)
The seedling raising method for large-leaf privet (Ligustrum lucidum) is as follows: before sowing in early spring, first stratify the seeds in moist sand for about 60 days. Sow in drills with a row spacing of 15 to 20 cm, at a seeding rate of 7.5 to 10 kg per 667 sq m, cover with soil 1 to 1.5 cm thick, and mulch with straw. Germination and emergence generally begin in mid-April; once some of the seedlings have emerged completely, remove the straw and thin the seedlings in time. One-year-old seedlings reach 40 to 60 cm in height and can be lifted for use as hedges; for street trees or courtyard landscaping, they need to be transplanted and grown on as large seedlings for 2 to 3 years, and when the seedlings reach 1.5 to 2 m in height they can be transplanted; large seedlings must be lifted with a soil ball, and part of the branches and leaves should be pruned off.
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Detailed Explanation of the Characteristics and Cultivation Techniques of the Large-leaf Privet
Scientific name Ligustrun lucidum Ait., also known as wax tree, Oleaceae, Ligustrum genus. It is an evergreen large shrub or tree, with grayish-brown bark, smooth and not fissured. The leaves are 8-12 cm long, leathery and glossy, remaining green through winter, making it a rare evergreen broadleaf tree in temperate regions. The trunk is upright or two or three trunks emerge together, branches spread obliquely, forming a broad ovate, rounded crown. It can be planted as a street tree, tolerates pruning, and is commonly used as a hedge. The wood is fine and dense, used for joinery. The fruit contains starch and can be used for brewing wine, and is also used medicinally as a tonic.
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Detailed Explanation of Key Technical Points for Pest and Disease Control in Large-Leaf Privet
Large-leaf privet (Ligustrum lucidum) has strong adaptability and is basically free of pests and diseases; only when its growth is too weak will scale insect damage occur. Control methods: 1. Use a grass bundle or brush to wipe and brush off the overwintering female insects on the trunk and branches and the male pupae inside the cocoons. 2. In May and June, spray for control with 50% malathion 600 times dilution, or 25% imidan 1000-1500 times dilution, or 40% dimethoate emulsifiable concentrate 1000 times dilution, or 10% fenbutatin oxide 400 times dilution.
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Key Techniques for Large-Bag Bed-Free Three-Dimensional Cultivation of Pholiota microspora (Nameko Mushroom)
Harvesting: When the mushrooms reach 70-80% maturity, that is, when the veil membrane of the cap has not yet stretched, they can be harvested. When harvesting, hold the substrate surface with one hand and gently twist off the mushroom cluster with the other, so as to avoid pulling up large chunks of substrate. After each flush is harvested, tidy the substrate surface and withhold water for 5-7 days before managing the next flush. Advantages of this cultivation model: it saves the wooden poles needed to build racks. No need to thread curtains or build racks, saving resources and reducing labor intensity; high-altitude work is changed to low-altitude work, making it easier to operate. Moisture in the substrate is easy to maintain, and during fruiting
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Cultivation and Management Methods for Large Potted Azaleas
The Wuxi Azalea Garden where the author works mainly grows azaleas in pots. The garden has a number of large azaleas over fifty or sixty years old, which are quite difficult to manage. In addition, it hosts the annual azalea flower show every year, and after the show the azaleas generally resume growth about 20 days later, right when they face the extremely unfavorable hot summer for azalea growth. In order to strengthen azalea growth, we gave careful thought to the growing medium. Azaleas have shallow, fine roots and high requirements for potting soil. In the past we always used orchid soil as the growing medium for repotting. In recent years we found that the quality of some orchid soil on the market
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High-grafting method for large-leaf privet and golden-leaf privet
Large-leaf privet (Ligustrum lucidum) and golden-leaf privet (Ligustrum × vicaryi) both belong to the Oleaceae family and the Ligustrum genus. The former is a fine sub-tree for landscaping, but because it is so common, it is often overlooked. The latter is a colored-leaf tree species that has been widely used in recent years. Because golden-leaf privet is a shrub, this limits its practicality. In order to expand the landscaping functions of both, the author used the method of high grafting to draw on each other's strengths to achieve this goal. The steps are as follows: in spring, use branch grafting or bud grafting (after the sap has begun to flow, and preferably before bud break). Use large-leaf privet with a diameter at breast height of 3 cm to 4 cm as the rootstock,
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Detailed Explanation of Key Techniques for Transplanting Large Red Spruce (Picea koraiensis) Trees
Red spruce, also known as Tiger-tail Pine, Korean Spruce, etc., is an evergreen tree of the genus Picea in the family Pinaceae. It is native to Northeast China and Korea, and is now widely planted in the Beijing and Qingdao areas, with some distribution in the Northwest as well. This tree species has a graceful form, with a spire-shaped crown and large branches that spread horizontally or extend slightly at an angle; it is highly adaptable, with a shallow root system and well-developed lateral roots, making it relatively easy to survive after transplanting. I. Transplanting Time: Spring is the best time for transplanting large trees. Under complete technical measures, transplanting in late November and late May can both achieve a survival rate of over 98%. II. Transplanting Preparation
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