Sunlight greenhouse cultivation of all-starred strawberry, Longdong area is the planting seedlings (also known as stalked shoots) in the middle and late August. The colonized seedlings were all nursery-breeding. In late April of that year, the strawberry mother plants were planted in a nursery at a row spacing of 150 cm and 35 cm. The female plant grew a stolon, and the stolons were able to breed seedlings. Many years of trials and demonstrations in Wangzhuang Township, the hometown of strawberry in the county of Laoting County, eastern Fujian Province, showed that seedling robustness is the key factor in determining the level of strawberry production. Under the same conditions as soil quality, density, and water and fertilizer management, the green house for planting strong seedlings will have an output of 4,500 kg at 667 square meters and a maximum of 5,000 kg. The greenhouse planted with weak seedlings will produce about 3,000 kg at 667 square meters. The output of the former is the latter. 150% to 167%.
The criteria for strong seedlings are: more than 5 unfolded leaves, petiole short and thick, dark green leaves, full central shoots, rough root diameter 1 cm or more, fibrous roots, white, single plant weight of about 30 grams.
How can we grow strong strawberry seedlings? It mainly focuses on the scientific management of summer and autumn nurseries.
1.Spray gibberellin The strawberry mother planted in the nursery can grow 3-4 new leaves and spray 0.01% gibberellic acid, which can significantly increase the amount of shoots and the quality of the shoots.
2. Arrangement of stalks of stalks. After a large number of stalks have occurred, a parent plant can retain 4 to 6 robust stalks, which should be promptly introduced to both sides of the mother plant, evenly distributed, and pressed on even-numbered sections to promote soil development. Adventitious roots, generally each stalk can grow strong seedlings 2 to 3 strains.
3. Moisturizing, cooling and preventing strawberry roots are shallow, drought resistance is weak, and it requires constant watering. When the weather is dry, it takes 5 to 7 days to water once. Strawberry is not tolerant to high temperatures. When the summer temperature exceeds 30°C, the growth of strawberries is inhibited. New leaves are not grown, and some leaves have burnt edges or burns. In order to prevent the high temperature, it is also possible to plant a row of corn on a loquat, with a spacing of 3 meters and a spacing of 1 meter, which cannot be overly dense, otherwise it will affect the growth of seedlings and form weak seedlings. Strawberries are also not tolerant and should be promptly removed after heavy rains.
4. Removal of old leaves, diseased leaves, mother plants, and weeds to remove weeds to reduce nutrient consumption, ventilation and light can reduce the incidence of pests and diseases. Weeds can be used to remove weeds, such as grass weeds predominate, 667 square meters available 12.5% ​​Gaiseng 130g or 35% stable kill 38g, spray 50 kg of water, can kill goosegrass, drought Pelicans, Thousand-grass, Setaria viridis, Horsegrass, Acacia, etc. Such as broad-leaved weeds predominate, can use 24% Dacker EC 100-150 ml per 667 square meters of water spray 50 kg, can kill purslane, amaranth, Artemisia annua, gray vegetables, Xanthium and so on. In grasses and broad-leafed grasses, Dacker can be used with herbicides, such as herbicides, stabilizing herbicides, etc., spraying them separately at staggered times, not mixing, spraying 1 or 2 times. The above herbicides are safer. Spraying herbicides should be conducted on a non-windy day and should not be sprayed on corn.
5. In the early and middle stages of top-dressing seedling growth, watering is performed according to seedling growth, and topdressing is performed 1 to 2 times, each time 10 to 15 kg of urea is applied with water. Foliar spraying is also required 2 to 3 times, spraying mainly 0.3% potassium dihydrogen phosphate, or other foliar fertilizers. Pay attention to seedlings in the late growth stage.
6. Prevent pests and diseases Botrytis cinerea or spray moth can be sprayed, leaf class disease can be sprayed on behalf of Senmong Zinc or chlorothalonil, Brown class disease can be extinguished or thiophanate-methyl, powdery mildew can be sprayed on Fuxing Emulsifiable or Super Poly WP. Triadimefon, thiophanate-methyl and other agents are not effective in preventing powdery mildew because of resistance, and should not be reused on strawberries.
Prevention and control of locusts can be sprayed once again. Prevention and control of red spiders can be used to spray ganoderma lucidum, control of tigers and earthworms and other pests, and use 50% phoxim to irrigate or poison soil to kill.
The criteria for strong seedlings are: more than 5 unfolded leaves, petiole short and thick, dark green leaves, full central shoots, rough root diameter 1 cm or more, fibrous roots, white, single plant weight of about 30 grams.
How can we grow strong strawberry seedlings? It mainly focuses on the scientific management of summer and autumn nurseries.
1.Spray gibberellin The strawberry mother planted in the nursery can grow 3-4 new leaves and spray 0.01% gibberellic acid, which can significantly increase the amount of shoots and the quality of the shoots.
2. Arrangement of stalks of stalks. After a large number of stalks have occurred, a parent plant can retain 4 to 6 robust stalks, which should be promptly introduced to both sides of the mother plant, evenly distributed, and pressed on even-numbered sections to promote soil development. Adventitious roots, generally each stalk can grow strong seedlings 2 to 3 strains.
3. Moisturizing, cooling and preventing strawberry roots are shallow, drought resistance is weak, and it requires constant watering. When the weather is dry, it takes 5 to 7 days to water once. Strawberry is not tolerant to high temperatures. When the summer temperature exceeds 30°C, the growth of strawberries is inhibited. New leaves are not grown, and some leaves have burnt edges or burns. In order to prevent the high temperature, it is also possible to plant a row of corn on a loquat, with a spacing of 3 meters and a spacing of 1 meter, which cannot be overly dense, otherwise it will affect the growth of seedlings and form weak seedlings. Strawberries are also not tolerant and should be promptly removed after heavy rains.
4. Removal of old leaves, diseased leaves, mother plants, and weeds to remove weeds to reduce nutrient consumption, ventilation and light can reduce the incidence of pests and diseases. Weeds can be used to remove weeds, such as grass weeds predominate, 667 square meters available 12.5% ​​Gaiseng 130g or 35% stable kill 38g, spray 50 kg of water, can kill goosegrass, drought Pelicans, Thousand-grass, Setaria viridis, Horsegrass, Acacia, etc. Such as broad-leaved weeds predominate, can use 24% Dacker EC 100-150 ml per 667 square meters of water spray 50 kg, can kill purslane, amaranth, Artemisia annua, gray vegetables, Xanthium and so on. In grasses and broad-leafed grasses, Dacker can be used with herbicides, such as herbicides, stabilizing herbicides, etc., spraying them separately at staggered times, not mixing, spraying 1 or 2 times. The above herbicides are safer. Spraying herbicides should be conducted on a non-windy day and should not be sprayed on corn.
5. In the early and middle stages of top-dressing seedling growth, watering is performed according to seedling growth, and topdressing is performed 1 to 2 times, each time 10 to 15 kg of urea is applied with water. Foliar spraying is also required 2 to 3 times, spraying mainly 0.3% potassium dihydrogen phosphate, or other foliar fertilizers. Pay attention to seedlings in the late growth stage.
6. Prevent pests and diseases Botrytis cinerea or spray moth can be sprayed, leaf class disease can be sprayed on behalf of Senmong Zinc or chlorothalonil, Brown class disease can be extinguished or thiophanate-methyl, powdery mildew can be sprayed on Fuxing Emulsifiable or Super Poly WP. Triadimefon, thiophanate-methyl and other agents are not effective in preventing powdery mildew because of resistance, and should not be reused on strawberries.
Prevention and control of locusts can be sprayed once again. Prevention and control of red spiders can be used to spray ganoderma lucidum, control of tigers and earthworms and other pests, and use 50% phoxim to irrigate or poison soil to kill.
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