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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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Detailed Explanation of Key Points for Spring Sowing Cultivation Techniques of Isatis Root
Currently, the Chinese medicinal herb Isatis root is well regarded in the market. The spring sowing season for Isatis root is approaching, so how is Isatis root cultivated in spring? 1. Land selection and preparation. Isatis root is a deep-rooted plant, with a main root that can reach 40-50 cm in length, so fertile sandy soil with deep soil layers and good drainage should be selected for planting. Before sowing, plow the land deeply 20-30 cm; sandy land can be plowed slightly shallower. Apply sufficient base fertilizer, mainly farmyard manure, then break up the clods and rake level to make beds. In the south, high beds are mainly used to facilitate drainage. Generally, the bed width is 1.5-2 m and the height is about 20 cm. 2. Sowing. Isatis root should be sown in March to April. When sowing, first draw shallow furrows about 2 cm deep on the bed surface at a row spacing of 20-25 cm, then evenly scatter the seeds into the furrows, cover with about 1 cm of soil, press lightly, and water appropriately in dry conditions. When the temperature is suitable, seedlings can emerge 7-10 days after sowing. The seeding rate per mu is 1.5-2 kg. 3. Field management. When the seedlings are 7-10 cm tall, thin them in time in combination with cultivating and weeding, and finally set the plants at a spacing of 6-8 cm. After setting the plants, according to the plant growth condition, appropriately apply one additional application of human excrement and urine or chemical fertilizer. In plain areas with abundant water or in rainy seasons, deep ditches should be added around the field to facilitate timely drainage and avoid root rot. If hot and dry weather occurs during the dog days, water in the early morning and evening, and be sure not to water under direct sunlight. 4. Harvesting and processing. For spring-sown Isatis root, the leaves can be harvested 2-3 times. The first time is in mid-June, when the seedlings are 20 cm tall, leaving stubble of 2-3 cm to encourage new leaf growth; the second time is in late August. It is not suitable to harvest during the hot dog days to avoid causing death of large patches. The harvested leaves are sun-dried and become the medicinal Daqingye. Those with large leaves, few broken pieces, cleanliness, dark green color, and no musty smell are best. Isatis root should be dug before the onset of winter on a sunny day. When digging, be sure to dig deep to prevent breaking the roots. After lifting from the soil, remove all soil, stems, and leaves, spread out to dry until 70-80 percent dry, tie into small bundles, then sun-dry further and they can be taken to the market to sell.
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Detailed Explanation of the Key Points of the New Technique for Raising Goji Berry Seedlings by Cuttings
Goji berry (Lycium barbarum) belongs to the Solanaceae family and is a perennial deciduous small shrub, about 2 m tall, with angular and thorny branches; the single leaves are alternate or clustered on short shoots, lanceolate or rhombic, with entire margins; the flowers are purple-red; the berry is orange-red, ovate or oblong. Goji berry prefers cool, moist, fertile soil and is tolerant of
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Detailed Explanation of Key Points for Spring Planting and Management of Yue Jiao Chili Pepper
Yue Jiao chili pepper can be sown in spring and autumn in South China. Spring sowing can be carried out from December to January of the following year. Before sowing, disinfect the seedbed soil with carbendazim; after sowing, control the seedbed soil moisture, keeping the soil half-dry and half-moist. When the weather is clear and sunny, remove the film in time for ventilation. Transplanting can be done in March. Plant spacing
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Control Methods and Technical Key Points for the Lychee Stink Bug
The lychee stink bug (Tessaratoma papillosa), belonging to Hemiptera, Pentatomidae, is a major pest of longan in our region. Both adults and nymphs pierce and suck the sap of tender shoots, flower clusters and young fruit; the damaged parts become discolored and dry up, causing flower and fruit drop. When disturbed, the foul liquid it emits touches tender leaves, flowers and fruit
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What are the key technical points for post-harvest pest and disease control in loquat?
Currently, most loquat fruit has been harvested. In addition to strengthening fertilizer and water management, pest and disease control is also an important prerequisite for ensuring whether the fruit trees can grow and develop normally and flower and bear fruit later. The main pests and diseases after loquat harvest include leaf spot disease, pear psylla, mites, aphids, etc.,
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How to prevent and control grape black pox disease? Key points for disease prevention when growing grapes
Grape black pox disease is also known as scab and bird's eye disease. Common names include toad's eye, liulong, and black spot. This disease is an important disease of grapes. It generally begins to occur in mid-to-late April, with the peak period from mid-to-late May to early June, and it is severe in rainy seasons. Throughout Shanxi Province
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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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Detailed Explanation of Key Points on Honeysuckle Planting and Pruning Techniques
The quality of honeysuckle pruning directly affects the level of yield. Different varieties and flower ages require different pruning methods. If pruned well, it can increase yield by 30%-40%. However, most growers currently do not understand honeysuckle pruning techniques well, especially new cultivators.
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