At present, it is the planting season for potato film production to cover the production of potatoes. In order to be able to guarantee the quality and quantity of potato production, the following technical measures are specifically proposed for reference by the majority of potato farmers.
The land preparation and maintenance work combined with the relatively humid time of the rain and snow soil, and swiftly carried out soil cultivation. In order to reduce the loss of soil moisture, it is best to do a one-time improvement of the ground. In regions where the amount of rainfall is low, the soil is still dry, and irrigation and then soil preparation are required.
The purpose of seed coating with seed coating is to eliminate the pathogenic bacteria on the surface of seed potatoes and reduce the incidence of soil-borne diseases and pests. It is also possible to improve the nutrient status of seed potatoes by adding nutrients to the coating agent, and to promote the emergence of seedlings. Grow. Here we introduce a seed coating formulation: Shileshi (fludioxonil) 10ml, agricultural streptomycin 3g, Gao Qiao (Imidacloprid) 20ml, potassium dihydrogen phosphate 5g, urea 5g, superphosphate 5 Grams, 1 kilogram of water (filtered out of impurities) is evenly sprayed on 100 kilograms of seed potatoes to dry the liquid after cutting and germination.
After germination of the germinating seed skin epidermis, the cuttings can be germinated. Germination is an effective technical measure to ensure rapid emergence, emergence, and production. The suitable temperature for germination is 18-22°C, and the suitable environmental humidity (air humidity) is 85% relative humidity, but the surface of the tuber can not form water droplets, otherwise it is easy to cause decay of seed potatoes. The simple and convenient method of germination is to place the cut sweet potato in the basket and cover it with sacks or haystacks. Place it in a warm place such as a greenhouse. The germination size should be about 3 cm long. Two to three days before sowing, let the young buds see light turn green and then sow.
Fertilization and fertilizer application period includes base fertilizer, seed fertilizer and topdressing fertilizer. Base fertilizer includes earth fertilizer, granular organic fertilizer and chemical fertilizer. When surface preparation, the ground is spread and then soil preparation is performed. Fertilizer is mainly fertilizer, and part of granular organic fertilizer (or bean cake that has been cooked well) can also be added. Fertilizers are applied to the trenches at the time of sowing; topdressing is mainly chemical fertilizers, and seedlings are applied at the hair growth stage. The application amount of fertilizer is related to the soil type and fertility. The fertilization amount of medium fertility soil is 2 to 3 m3/mu for organic fertilizer, 100 to 150 kg/mu for ternary compound fertilizer containing about 20% potassium, and Urea 10 Kilograms/acre. 1/3 compound fertilizer is used as base fertilizer, 1/3 as seed fertilizer, 1/3 as top dressing, urea 1/2 as seed fertilizer, and 1/2 as top dressing.
Seeding method
1. The suitable density for planting with plastic film covering is 5000-5500 strains/mu. Single-ridge and double-row planting methods should be adopted, that is, the ridge distance is 90 centimeters, the spacing between two rows is 20 to 25 centimeters, and the plant spacing is 27 to 30 centimeters.
2. Depth of sowing and method of sowing When sowing, first apply phytosterilizer with 5-30 cm depth and 20-25 cm wide shallow ditch after planting, mix well with the soil, then pour small water in the ditch, after the water seeps down. sowing. When planting, do not shoot buds up or down. The best way is to plant the buds parallel to the furrows in parallel with the furrows. After planting, ridge with mechanical or artificial soil. Depth of earth (more than seed potatoes) reaches 10-12 cm, not too deep, not too shallow. Deep soil will cause the soil to heat up slowly, and the thick soil will lead to the extension of the seedling stage and affect plant growth. Therefore, the soil depth should not exceed 15 cm. Pay attention to the fact that the ridge should be squared and it should not be cultivated into a sharp ridge, otherwise the potato block will “arch out†the ground and make it see light turn green.
3. After wetting the herbicide and covering the mulching film, the herbicide is sprayed on the ridge surface to reduce the growth of weeds. The following herbicides can be used.
(1) 24% Goer EC 40-50mL evenly spray water to the surface of 60kg of water table, Gore is a contact killing herbicide, spraying should be uniform and thoughtful, do not damage the film after spraying, dosage should be accurate.
(2) 33% of Shi Tian's cream oil 150-200mL, spray 40-50kg evenly on the soil surface. After the spraying, we must cover the mulch immediately after wetting the ridge, so as to better exert the efficacy of the herbicide. When covering the film, it is required to make the film close to the ground and there should be no soil support under the film.
The land preparation and maintenance work combined with the relatively humid time of the rain and snow soil, and swiftly carried out soil cultivation. In order to reduce the loss of soil moisture, it is best to do a one-time improvement of the ground. In regions where the amount of rainfall is low, the soil is still dry, and irrigation and then soil preparation are required.
The purpose of seed coating with seed coating is to eliminate the pathogenic bacteria on the surface of seed potatoes and reduce the incidence of soil-borne diseases and pests. It is also possible to improve the nutrient status of seed potatoes by adding nutrients to the coating agent, and to promote the emergence of seedlings. Grow. Here we introduce a seed coating formulation: Shileshi (fludioxonil) 10ml, agricultural streptomycin 3g, Gao Qiao (Imidacloprid) 20ml, potassium dihydrogen phosphate 5g, urea 5g, superphosphate 5 Grams, 1 kilogram of water (filtered out of impurities) is evenly sprayed on 100 kilograms of seed potatoes to dry the liquid after cutting and germination.
After germination of the germinating seed skin epidermis, the cuttings can be germinated. Germination is an effective technical measure to ensure rapid emergence, emergence, and production. The suitable temperature for germination is 18-22°C, and the suitable environmental humidity (air humidity) is 85% relative humidity, but the surface of the tuber can not form water droplets, otherwise it is easy to cause decay of seed potatoes. The simple and convenient method of germination is to place the cut sweet potato in the basket and cover it with sacks or haystacks. Place it in a warm place such as a greenhouse. The germination size should be about 3 cm long. Two to three days before sowing, let the young buds see light turn green and then sow.
Fertilization and fertilizer application period includes base fertilizer, seed fertilizer and topdressing fertilizer. Base fertilizer includes earth fertilizer, granular organic fertilizer and chemical fertilizer. When surface preparation, the ground is spread and then soil preparation is performed. Fertilizer is mainly fertilizer, and part of granular organic fertilizer (or bean cake that has been cooked well) can also be added. Fertilizers are applied to the trenches at the time of sowing; topdressing is mainly chemical fertilizers, and seedlings are applied at the hair growth stage. The application amount of fertilizer is related to the soil type and fertility. The fertilization amount of medium fertility soil is 2 to 3 m3/mu for organic fertilizer, 100 to 150 kg/mu for ternary compound fertilizer containing about 20% potassium, and Urea 10 Kilograms/acre. 1/3 compound fertilizer is used as base fertilizer, 1/3 as seed fertilizer, 1/3 as top dressing, urea 1/2 as seed fertilizer, and 1/2 as top dressing.
Seeding method
1. The suitable density for planting with plastic film covering is 5000-5500 strains/mu. Single-ridge and double-row planting methods should be adopted, that is, the ridge distance is 90 centimeters, the spacing between two rows is 20 to 25 centimeters, and the plant spacing is 27 to 30 centimeters.
2. Depth of sowing and method of sowing When sowing, first apply phytosterilizer with 5-30 cm depth and 20-25 cm wide shallow ditch after planting, mix well with the soil, then pour small water in the ditch, after the water seeps down. sowing. When planting, do not shoot buds up or down. The best way is to plant the buds parallel to the furrows in parallel with the furrows. After planting, ridge with mechanical or artificial soil. Depth of earth (more than seed potatoes) reaches 10-12 cm, not too deep, not too shallow. Deep soil will cause the soil to heat up slowly, and the thick soil will lead to the extension of the seedling stage and affect plant growth. Therefore, the soil depth should not exceed 15 cm. Pay attention to the fact that the ridge should be squared and it should not be cultivated into a sharp ridge, otherwise the potato block will “arch out†the ground and make it see light turn green.
3. After wetting the herbicide and covering the mulching film, the herbicide is sprayed on the ridge surface to reduce the growth of weeds. The following herbicides can be used.
(1) 24% Goer EC 40-50mL evenly spray water to the surface of 60kg of water table, Gore is a contact killing herbicide, spraying should be uniform and thoughtful, do not damage the film after spraying, dosage should be accurate.
(2) 33% of Shi Tian's cream oil 150-200mL, spray 40-50kg evenly on the soil surface. After the spraying, we must cover the mulch immediately after wetting the ridge, so as to better exert the efficacy of the herbicide. When covering the film, it is required to make the film close to the ground and there should be no soil support under the film.
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