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How to Eliminate the Alternate Bearing Phenomenon in Bayberry Cultivation
Bayberry is a famous characteristic fruit tree of our country, mainly distributed in various places south of the Yangtze River basin, and the latest high-yield techniques have also been widely popularized. 1. Fertilizer and water management: In the current year, annual vegetables or green manure can be intercropped in the woodland to improve soil fertility. Young trees should be given quick-acting fertilizers ⟦4 <p>Bayberry is a famous characteristic fruit tree of our country, mainly distributed in various places south of the Yangtze River basin, and the latest high-yield techniques have also been widely popularized.</p><p></p><p>1. Fertilizer and water management: In the current year, annual vegetables or green manure can be intercropped in the woodland to improve soil fertility. Young trees should be given quick-acting fertilizers as the main application, with nitrogen, phosphorus, and potassium applied in combination. Adult trees are topdressed twice a year: the first time in late winter and early spring before bud break and shoot emergence, and the second time after fruit harvest, accounting for 50%—55% of the annual fertilizer application. In addition, work such as soil improvement and draining waterlogged areas should be done well to ensure the high quality and high yield of bayberry.</p><p>2. Shaping and pruning: The tree form of bayberry is mainly the natural round-headed shape. Pruning of young trees is mainly for trunk determination and shaping, cultivating an early-fruiting and high-yielding tree body. Generally, a “one trunk and three main branches” natural open-center canopy is used. Pruning of adult trees is mainly to cultivate a high-yielding population structure, regulate the relationship between growth and fruiting, and promote sustained, high-quality, high yield.</p><p>3. Prevention and control of alternate bearing: Bayberry is a typical fruit tree with alternate bearing, regularly fruiting in alternate years. Therefore, overcoming alternate bearing is an important project in bayberry production, and technical measures such as girdling to suppress shoots and promote flowering and fruit retention, and flower and fruit thinning, can be applied for regulation. 1. Girdling to suppress shoots, promote flowering, and retain fruit: The traditional measure for controlling shoots, promoting flowering, and retaining fruit is ring barking or the use of chemical hormones. This method can achieve good short-term benefits, but it causes great harm to tree vigor, and in severe cases can lead to tree death. At present, the widely applied technique is girdling and applying the pollution-free cationic activator “Flower Promoter No. 2”, which controls shoots, promotes flowering, increases the fruit-setting rate, and can eradicate alternate bearing. 2. Large branch pruning: For adult bayberry trees left to grow freely, use the methods of “cutting high branches and controlling the canopy” and “removing inner branches and opening skylights” on the trunk and main branches. For newly planted young trees, the method of “first letting grow, then pruning” can be implemented, that is, allowing free growth in the first year, and gradually adjusting to a dwarfed and open tree form after the 4th year when fruiting begins. 3. Scientific fertilization: More potassium fertilizer should be applied, once a year. Less phosphorus fertilizer should be applied, because too much phosphorus fertilizer often causes many fruits, small size, and poor quality, aggravating the alternate bearing phenomenon. Nitrogen fertilizer should be applied appropriately to promote the expansion of young fruits. Young trees should be appropriately given chemical fertilizers, while adult trees should mainly be given farmyard manure.</p><p>4. Pest and disease control: Bayberry has strong stress resistance and relatively few pests and diseases. The main insect pests include white peach scale, leaf roller moths, and bagworm pests. The main diseases include brown spot disease and crown gall disease. Control methods: 1. Chemical control: For crown gall disease, after rain in spring and autumn, first use a sharp knife to cut off the disease tumors, then apply “Tree Guard General” emulsion to the wounds, so that the disease spots quickly dry up and fall off, eliminating the source of infection; for brown spot disease, in the early stage of disease occurrence, use 50% carbendazim 500—600 times solution or 70% thiophanate-methyl 800 times solution or 65% zineb 600 times solution + “New High Lipid Film”, spray the canopy once every 7—10 days, for 2—3 consecutive sprays. 2. Strengthen cultivation management to enhance tree vigor; promptly prune diseased branches and dead branches, and after pruning, promptly apply “Wound Healing and Antiseptic Film” to protect the wounds; 3. Do a good job of winter orchard cleaning, remove fallen leaves and weeds, burn them in a centralized manner, and then spray the whole orchard with “Tree Guard General” 100 times solution for sterilization and disinfection.</p>
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Sharing Experience in High-Efficiency Cultivation of Watermelon in Double Greenhouses
I. Selecting Good Varieties and Raising Strong Seedlings In recent years, the high-quality gift watermelon varieties cultivated in coastal areas mainly include Zaochun Hongyu, Hong Xiaoyu, Huang Xiaoyu, Te Xiaofeng, Xiaolan, etc., paired with medium-fruit-type varieties Jingxin No. 1, Jingxin No. 2, and Zaojia (8424). In coastal areas, melon
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Detailed Explanation of Spring Seed Propagation Methods for Honeysuckle
Pick the black fruits in January. After picking, pile them at a thickness of 30 cm and let them after-ripen for 5-7 days, then put them in clean water and rub and wash them to remove the peel and pulp, and dry them in a shady place. Avoid direct sun exposure, then winnow away the shriveled seeds and store them for later use. Seed treatment: before sowing, soak the seeds in warm water at 35-4
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Detailed Explanation of Key Techniques for Overwintering Onion Seedling Cultivation
I. Key Technical Points 1. The seedbed site must be land that has never been planted with onions; otherwise, the death rate of overwintering seedlings increases, which is unfavorable for preserving seedlings and increasing yield; 2. For greenhouse plots, the sowing period is August 1-5, sowing rate: 17 jin/mu of seed with a germination rate above 85%. For open-field seedling cultivation, the sowing period is August 5-10
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How to transplant Chinese chives? Remember these four key points
Chinese chives have a very strong tillering ability and exhibit root-jumping (that is, as the Chinese chives tiller, they gradually move upward in layers, and the rooting position of the Chinese chives also keeps rising). Continuous growth in this way often leads to a sharp decline in both yield and quality three to four years after transplanting, and growers
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Spring pruning methods for goji berry: prune properly for more fruit
1. Thinning branches. First, cut off dead branches, diseased and pest-infested branches, damaged branches, thorny branches and crossing branches, and then thin out overly dense fruiting branches. When thinning fruiting branches, first remove shaded branches, downward-facing branches and thin weak branches; then remove upward-facing branches and middle branches; if still dense, then thin the branches on both sides, cut
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Experience Sharing on Integrated Pest Management for Grapes
1 Dormant period control techniques (November to March). During this period, the pests that were rampant and causing damage stop their activity, and various pests enter the overwintering state in different insect forms and ways, and their overwintering sites are relatively hidden. 1.1 Clearing the orchard. After the grapes shed their leaves, promptly clear away the fallen leaves, dead branches and weeds,
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Intercropping Cultivation Technology for Watermelon and Chinese Yam in Large Arch Sheds
In early spring, using a large arch shed for intercropping watermelon with Chinese yam can bring the harvest and market time of both watermelon and Chinese yam more than 45 days earlier than open-field cultivation, thereby achieving relatively high economic benefits. 1. Arch shed structure. The shed is 7 m wide, the arch height at the center of the shed is 2.5 m, and the shed length depends on the plot.
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Detailed Explanation of Key Technical Points for Overwintering Onion Seedlings by Heeling In
Before heeling in, first dig the seedlings out of the field (try not to damage the root system), shake them gently to shake off loose soil, and remove seedlings with no roots, no growing point, overly short, or thin and spindly ones, as well as leggy seedlings with overly long leaves, tillering seedlings, and pest- or disease-damaged seedlings, along with scallion seedlings (the leaf sheath part of scallion seedlings
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Experience Sharing on Protected Cultivation of Ruby Seedless Grapes
Ruby Seedless grapes have a high fruit-setting rate and a high fruit-setting rate, with uniform berries, easy coloring, firm and crisp flesh, good flavor, early maturity and high yield, and strong adaptability. In 2000, we carried out continuous cultivation trials in a solar greenhouse. The fruit matured on May 5, 62 days earlier than in the open field
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