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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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Technical Points for Cultivating Dictyophora indusiata with Soybean Shade
Traditional cultivation of Dictyophora indusiata used bamboo shavings as the raw material, and the yield was low (20-30 kg/mu). Starting in 2000, the country's first use of rice husks as the raw material for cultivation together with shade sheds raised the yield per mu to 120-150 kg, increasing the benefit by 4-5 times. Starting in 2001, cultivation with soybean shade was used,
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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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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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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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Control Methods and Technical Key Points for Litchi Downy Blight
Litchi downy blight can harm litchi from young fruit to ripe fruit, fruit stalks, and the small bearing branches; when humidity is high, leaves also develop the disease. Symptoms: local chlorosis on leaves, with white mold on the underside, the fruiting bodies of the pathogen, but usually at the peak period of this disease, the leaves have already aged, so leaf damage in the field is rarely seen.
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Detailed Explanation of the Technical Method for Cultivating Lingzhi (Reishi) on Mulberry Branches
The artificial cultivation process for mulberry branch lingzhi is: mulberry branch collection - cutting into sections - crushing - ingredient mixing - bagging - sterilization - inoculation - cultivation management - harvesting lingzhi - sun drying - packaging. 1. After pruning and crushing the mulberry branches, pack them in food-fungus-specific plastic bags with a specification of 18 cm x 20 cm.
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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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Detailed Explanation of the Key Techniques for Top-Grafting and Cultivar Conversion of Chinese Bayberry
1. Technical essentials (1) Timing: In Zhejiang, mid-March to early April is suitable. (2) Scion selection: National regulations stipulate that any variety that has passed appraisal and recognition may be used as a top-grafting variety, but the most widely used one in various regions is: Dongkui Chinese bayberry; because in addition to its exceptionally large fruit,
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