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Key Points of Bee Pollination Technology in Strawberry Cultivation
Greenhouse strawberry cultivation takes place in winter and early spring, when temperatures are low, humidity is low, daylight is short, and insects are few. This affects anther dehiscence and pollen dispersal, leading to poor pollination and the easy development of various deformed fruits, seriously affecting yield and quality. To create good pollination conditions, besides paying attention to ventilation
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How to grow seedlings of seedless watermelon? Practical experience shared
Seedbed establishment The seedbed land must be chosen in a place that is sheltered from the wind, facing the sun, high in terrain, and close to a water source, for ease of management. The seedbed is 2.5 m wide and 0.15 m deep, and the length is determined as needed. When establishing the seedbed, care should be taken to make its bottom as flat as possible. Before making the pots, spread a layer of sandy soil on the bottom of the seedbed to facilitate lifting the seedlings.
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What are the control methods for loquat trunk rot disease?
In recent years, loquat trunk rot disease has occurred especially severely in some places, posing a serious threat to loquat production. According to surveys, the varieties Luoyangqing and Dahongpao are the most susceptible to the disease. In the early stage of the disease, the base of the main trunk rots first, and then it gradually develops upward along the branches and trunk,
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Detailed Explanation of Key Techniques for Bag Cultivation of Lingzhi (Reishi) on Wood Blocks
I. Selection of Strains Currently, artificially cultivated lingzhi in China can be divided into three major types: (1) Medicinal type: such as Taishan Red Lingzhi, South Korean Lingzhi, Yuanzhi No. 6, etc. (2) Medicinal and ornamental type: such as Black Lingzhi g43-1, Black Lingzhi g43-2, etc. (3) Ornamental type: such as Shushe
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High-yield cultivation techniques and experience sharing for honeysuckle
I. Planting method: Deeply plow and loosen the soil, apply sufficient farmyard manure, dig round pits with a diameter of 30 cm and a depth of about 25 cm at a plant spacing of 1 m and a row spacing of 1.60 m, plant 3 to 6 honeysuckle seedlings in each pit in a fan-shaped arrangement along the walls, water thoroughly, cover with soil and tread firm. Seedlings per mu
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Methods and Technical Key Points for Top Grafting and Variety Conversion of Walnut Trees
Among the walnuts currently cultivated on a large scale, seedling trees are in the majority. These seedling trees have mixed populations, severe varietal degeneration, low yields, and poor quality. By adopting the top grafting and variety conversion method, early-bearing walnut varieties bear fruit 1-2 years after top grafting, and late-bearing varieties bear fruit 2-3 years after top grafting, which can significantly improve
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What are the pest and disease control methods for yam cultivation
Yam has strong disease resistance and rarely gets sick, but in recent years anthracnose sometimes occurs, causing stem blight and leaf drop. Generally before sowing, soak the seeds with 50% carbendazim wettable powder 1000-1200 times dilution, or dip the wounds of yam planting sets in dry plant ash, or place
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Key Technical Points for Early Spring Management of Greenhouse Chives
1. Temperature management. Chives prefer cool conditions, with an optimum growing temperature of 15-24°C, and ventilation should be provided appropriately during the day. To promote sprouting, after the shed is covered the daytime room temperature should be kept at 18-25°C; after sprouting, the daytime room temperature should be controlled at 17-23°C. Before the first cutting of chives is harvested, the daytime temperature should be 15-2
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Detailed Explanation of Key Technical Points for High-Yield Raspberry Cultivation and Management
Raspberries have very strong adaptability. In our country, except for the Qinghai-Tibet Plateau, they can be planted in most areas. In the north, raspberries can endure low temperatures of -40 to -45°C, and they can be planted anywhere in the south. In subtropical regions certain changes will occur, because raspberry roots do not have natural dormancy; when their symbiotic conditions are met, they will grow year-round without shedding leaves. They can bear fruit twice a year, but the fruit shape is slightly smaller than fruit from the north, while the yield is higher than in the north. There are many raspberry varieties, with more than 400 in the world. In terms of fruit shape, there are red, black, yellow, purple and other colors. Fruit weight is generally 5-10 grams, with the largest reaching 20 grams. Raspberry yield is 1000-1500 kg per 667 sq m.</p><p></p><p>Orchard Establishment and Planting </p><p>Raspberries can be planted in spring or autumn. Spring planting is after the soil thaws and before the seedlings sprout (March-April), while autumn planting is preferably after the seedlings have lignified and before the soil freezes (October-November). For field planting of raspberries, the row spacing is 2.5 m and the plant spacing is 0.8 m, with 2-3 plants per hole, 660-990 plants per 667 sq m. Before planting, soak the seedling roots in water for 12-24 hours to ensure the seedlings have sufficient moisture in their bodies. At planting time, the seedling roots should be 15 cm from the ground, and the area around the seedlings should be 30 cm. When covering with soil, compact the soil, and it is best that the soil does not exceed the seedling soil mark. Water thoroughly once.</p><p>Trellising and Guiding Branches </p><p>When branches grow to 1.5 m, trellising and branch guiding must be carried out. Within the row, set a post every 5-10 m, 1.5 m high, and stretch two wire lines. The upper wire is fixed at the top of the posts, and the lower wire is 1 m above the ground. Guide the branches onto the wire lines in a fan shape and tie them well.</p><p>Pruning </p><p>Pruning is divided into three times. The first pruning is at planting time. After the seedlings survive, excessively dense, thin and weak branches and damaged branches should be cut off flush with the ground. When the new shoots of the year grow to 40-60 cm, for plants with relatively low density, pinch the tips at 10 cm to promote the sprouting of new side branches and increase the number of branches. The second is pruning of basal shoots (that is, the new shoots of the year). It is advisable to leave basal shoots cut back to 1.3-1.5 m; those exceeding 1.5 m should be pruned. For each plant cluster, select and retain 6-8 vigorous basal shoots and cut off the rest. The third pruning is after fruit harvesting is finished, when the fruiting canes should be cut off flush with the ground.</p><p>Fertilizer and Water Management </p><p>Base fertilizer should preferably be applied in early autumn, mainly with decomposed farmyard manure, and an appropriate amount of chemical fertilizer may also be added. Apply the base fertilizer mixed with soil on one side 40-60 cm from the plant. When applying chemical fertilizer, the soil must have sufficient moisture. Apply about 0.5 kg of compound fertilizer on one side 50 cm from the plant. Raspberry is a shallow-rooted plant. When watering during drought, it is enough for soil moisture to reach 40 cm; the principle is that it can be watered in drought and drained in waterlogging. In weak areas, water once with winter protection water before winter. In arid areas, some leaves, chopped straw and the like can be spread around the raspberries, which can prevent water evaporation and also increase soil fertility.</p><p>Intertillage and Weeding </p><p>Raspberries can be intertilled and weeded twice each year. For chemical weeding, acetochlor, glyphosate, simazine, linuron and other chemical herbicides can be used (use according to the instructions). In order to improve land utilization, some low-growing plants, such as beans and potatoes, can be planted between the fruit trees.</p><p>Raspberry fruits can be picked and marketed when they are 90% ripe; for industrial deep processing, they must be harvested only when fully ripe.</p>
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Key Management Techniques After Top Grafting and Replanting of Lychee
After top grafting of lychee, sun protection and ant prevention work must be done well, and new shoots on the original rootstock and water-drawing branches should be removed promptly and regularly so that nutrients are concentrated in the scion, facilitating the sprouting of new shoots and growth and development. After the graft has survived, cut off the water-drawing branches in stages and batches. After the first flush of shoots has completely turned green, cut off part of the water-drawing branches; after the second flush of shoots has fully matured, cut off part of the water-drawing branches; in the spring and summer of the second year after grafting, cut off all water-drawing branches.
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