Spring seedling cotton seedlings technical advice
2021-03-16 14:21:52
“The seedlings are good and half production.†Since the end of March, the national cotton planting work has started one after another. As last year's cotton prices opened higher and higher, this year's cotton production showed a recovery trend. Seed markets across the region started early and seed sales rebounded. In view of the anomalous climate in the past year, low temperatures in autumn and fall, bad bells, and overall deviation in seed quality, coupled with the low temperatures and droughts in winter and spring, we must make preparations in advance to actively respond to adverse weather conditions of low temperature, drought, or high humidity. According to the forecast of the Central Meteorological Observatory, there is a high probability of high temperatures and droughts this spring. We must lay a solid foundation and strive to broadcast all seedlings and strong seedlings as early as possible.
Daejeon’s live broadcast of timely planting seedlings
1, master the appropriate sowing time. Cotton is a good light crop. Seed germination and emergence requires the soil temperature of 5 cm stable through 14 °C, and in the short term rose to 16 °C for the appropriate temperature sowing, production, please pay attention to the weather forecast, generally select the "cold tail warmer" sowing. Mulch cover and open sowing in the Mainland are generally in mid-April. The sowing season in the northwest is usually in the middle and middle of April. The soil temperature in the saline-alkali soil in the northern part of North China has picked up slowly, and the cold slope on the northern slope of the Tianshan Mountains in Xinjiang has been heavy. It is advocated that the seeds should be sown after the appropriate sowing date.
2, build security, fine soil preparation. The live broadcast of Daejeon, the Yellow River and the northwest require foot-stomping, early filling of water at the bottom, fine soil preparation, adequate planting, and good health. Generally speaking, it is the best time to attain 20 days in advance. Considering that there is continuous drought and less rain in the winter and this spring, and the water resources are tight, the local water sources should be used to make timely efforts, and the floods should be promptly repaired. In the case of water-free pouring, it is advisable to raise the film by filming at an early stage. After about 30 days of sowing, after ploughing (grabbing) the soil preparation, it is then covered with a plastic film, compacted on both sides of the film, and when the temperature is suitable, holes are drilled on the film. This method can reduce the evaporation of the ground and maintain soil moisture, and has a significant effect on drought and saline-alkali cotton fields, especially after a small amount of precipitation or after the advancement of fleas. The effect is better and worth promoting.
3, mulching film, increase the temperature. Film coverage can significantly increase the temperature, cultivating strong seedlings, and promoting early-onset hair growth. The live broadcast of Daejeon promotes wide film coverage in the northwest. In North China, it is recommended to sow after covering with the first film. The depth of the mulch film is more than 5cm deep, and the compaction is solid; the seedlings are placed in time, and the seedlings are prevented from burning at high temperature and the wind is uncovered. After seeding, seedlings were planted and seedlings were transplanted. 7 to 10 days after the general broadcast Qimiao, after checking the seedlings by plots, supplemented seedlings.
4, do a good job of pest control. Blight, damping-off, and anthrax are the major diseases during the seedling stage. On the basis of seed coating, it is advocated with a half-bore of Bordeaux fluid. Ground tigers, snails, seedlings, and cotton thrips are the main pests in the seedling stage, and they are made of poison baits or phoxim by using trichlorfon to prevent and control pesticides.
Seedlings for cultivation of seedlings for nutrition The seedling transplanting area accounts for about 45% of the total area of ​​cotton fields in the country all year round. It is distributed in the Yangtze River basin and the Huanghuai Plain cotton area, and has a good yield increase effect.
1, choose a good bed site, fertilizer bed soil. Asked for a high-profile bedside location, sheltered from the sun, bed soil fertile and disease-free. Fertilizer bed soil, standardized bed, 1.2 meters wide, not more than 15 meters long, digging a good trench, drainage smooth.
2, medium carcass, enough quantity. According to the transplanting density, double the planting time. Before the planting, the carcass should be filled with water. Each plant should be seeded with 1 coat of cotton, covered with cool soil, and the thickness is appropriate. The carbendazim is used to disinfect and prevent disease.
3, timely sowing, broadcast all seedlings. Nutrient seedlings require ground temperature stability through 10 °C, sowing time: a mature cotton field from the end of March to early April, cotton in early April cotton, oil in mid-April cotton broadcast.
4, strengthen management, nurturing strong seedlings. Low-temperature seeding promotes double-film coverage of the seedbed. During the period of warming and cooling, the seedlings are not transplanted and the membrane does not leave the bed. Move the seedlings and unroll the film before planting.
5, timely transplanting to ensure the density. In accordance with the planned density of ditching or burrowing planting, it is necessary to ensure that no pods are broken during transplanting, and that the roots and pods are not exposed and the pits are not covered. After planting, the roots should be poured to “set the root water†in order to shorten the period after planting.
Daejeon’s live broadcast of timely planting seedlings
1, master the appropriate sowing time. Cotton is a good light crop. Seed germination and emergence requires the soil temperature of 5 cm stable through 14 °C, and in the short term rose to 16 °C for the appropriate temperature sowing, production, please pay attention to the weather forecast, generally select the "cold tail warmer" sowing. Mulch cover and open sowing in the Mainland are generally in mid-April. The sowing season in the northwest is usually in the middle and middle of April. The soil temperature in the saline-alkali soil in the northern part of North China has picked up slowly, and the cold slope on the northern slope of the Tianshan Mountains in Xinjiang has been heavy. It is advocated that the seeds should be sown after the appropriate sowing date.
2, build security, fine soil preparation. The live broadcast of Daejeon, the Yellow River and the northwest require foot-stomping, early filling of water at the bottom, fine soil preparation, adequate planting, and good health. Generally speaking, it is the best time to attain 20 days in advance. Considering that there is continuous drought and less rain in the winter and this spring, and the water resources are tight, the local water sources should be used to make timely efforts, and the floods should be promptly repaired. In the case of water-free pouring, it is advisable to raise the film by filming at an early stage. After about 30 days of sowing, after ploughing (grabbing) the soil preparation, it is then covered with a plastic film, compacted on both sides of the film, and when the temperature is suitable, holes are drilled on the film. This method can reduce the evaporation of the ground and maintain soil moisture, and has a significant effect on drought and saline-alkali cotton fields, especially after a small amount of precipitation or after the advancement of fleas. The effect is better and worth promoting.
3, mulching film, increase the temperature. Film coverage can significantly increase the temperature, cultivating strong seedlings, and promoting early-onset hair growth. The live broadcast of Daejeon promotes wide film coverage in the northwest. In North China, it is recommended to sow after covering with the first film. The depth of the mulch film is more than 5cm deep, and the compaction is solid; the seedlings are placed in time, and the seedlings are prevented from burning at high temperature and the wind is uncovered. After seeding, seedlings were planted and seedlings were transplanted. 7 to 10 days after the general broadcast Qimiao, after checking the seedlings by plots, supplemented seedlings.
4, do a good job of pest control. Blight, damping-off, and anthrax are the major diseases during the seedling stage. On the basis of seed coating, it is advocated with a half-bore of Bordeaux fluid. Ground tigers, snails, seedlings, and cotton thrips are the main pests in the seedling stage, and they are made of poison baits or phoxim by using trichlorfon to prevent and control pesticides.
Seedlings for cultivation of seedlings for nutrition The seedling transplanting area accounts for about 45% of the total area of ​​cotton fields in the country all year round. It is distributed in the Yangtze River basin and the Huanghuai Plain cotton area, and has a good yield increase effect.
1, choose a good bed site, fertilizer bed soil. Asked for a high-profile bedside location, sheltered from the sun, bed soil fertile and disease-free. Fertilizer bed soil, standardized bed, 1.2 meters wide, not more than 15 meters long, digging a good trench, drainage smooth.
2, medium carcass, enough quantity. According to the transplanting density, double the planting time. Before the planting, the carcass should be filled with water. Each plant should be seeded with 1 coat of cotton, covered with cool soil, and the thickness is appropriate. The carbendazim is used to disinfect and prevent disease.
3, timely sowing, broadcast all seedlings. Nutrient seedlings require ground temperature stability through 10 °C, sowing time: a mature cotton field from the end of March to early April, cotton in early April cotton, oil in mid-April cotton broadcast.
4, strengthen management, nurturing strong seedlings. Low-temperature seeding promotes double-film coverage of the seedbed. During the period of warming and cooling, the seedlings are not transplanted and the membrane does not leave the bed. Move the seedlings and unroll the film before planting.
5, timely transplanting to ensure the density. In accordance with the planned density of ditching or burrowing planting, it is necessary to ensure that no pods are broken during transplanting, and that the roots and pods are not exposed and the pits are not covered. After planting, the roots should be poured to “set the root water†in order to shorten the period after planting.
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