1. Selection of seedbeds: The nursery plots should be selected in the pastoral or courtyard where the terrain is flat, soil is fertile, wind is sunny, permeability is good, drainage and irrigation are convenient, the groundwater level is below 1~1.5 meters, the water source is near, and it is easy to manage.
2. Bed soil fertilization: The seedbed is best fixed and should be cultivated for consecutive years. After the nursery is completed, the leguminous crop can be planted or rested. In the summer, 40,000 to 50,000 kilograms of straw are put into every 15 acres of land, and 10, 000 to 200,000 kilograms of manure is fermented. After plowing, the plowing is 20 centimeters deep and mixed with bed soil. If there is no nursery bed or a newly-selected nursery bed in the summer of last year, when the bed is set in the spring soil, 100,000 kilograms of fully-fermented farmyard manure should be applied to every 15 acres and mixed with a 15 cm deep soil layer.
3. Adjusting and disinfecting seedbeds: When adjusting the acid content, according to bed soil acidity and alkalinity, use 10 kg of soil-strengthening agent and 2.5 kg of soil-strengthening agent to spread the clay to the bed surface 3 times and 10 cm. The soil is mixed evenly. Adjust the soil pH to 4.5-5.5. One day before planting, spray the plantar water on the bottom of the plant. The standard is 5~10cm. The soil is saturated. After the water is fully infiltrated, use 2ml of transplanting spirit to transfer 7kg per square meter. Spray evenly on the surface of the bed and spray once. . Do not use,,.
4. Seedling weeding: Cover the sandy loam without grass seed 0.5 ~ 1 cm, to dew without revealing seeds, then use "closed 1" (low toxicity) 8 ~ 10 ml watered 10 kg of water, spray evenly with a sprayer 10 square meters seedbed, one-time spraying, be sure to spray evenly, do not appear puddles, do not spray too much, so as not to cause damage to young shoots, can also be used for other Putian rice special herbicides.
5. Seedbed size: The seedbed should be fine, loose and flat. It should be oriented towards east and west, with a length of 10-15 meters and a width of 1.2 meters. It should be made into a small bandit of 5 to 10 centimeters around. It is appropriate to go to bed. The bed spacing is 70 cm.
Putian Management
1. Seed treatment: Use 50% soaking seedling agent 5000 times soaking seed 5 kg, soak 4~5 days at room temperature, stir 1~2 times a day to prevent and cure rice bakan disease.
2. Sowing: The daily average temperature can be sown when the temperature is stable above 6°C. Before the planting, water is sprayed at the bottom (that is, the water content of the 10-12 cm soil layer reaches saturation). Seeds of 2000 to 2200 kilograms are sowed every 15 acres. The seed is pressed onto the soil to cover the soil on three sides and the thickness of the soil is 0.5 to 1.0 cm. To reach water spray without seeds. Arch cover film, arch height 40 ~ 45 cm, every 50 cm inserted a bamboo piece, fixed with a string after the back cover film, compaction around the compaction, plus reins fixed.
3. Sowing till the seedlings are formed: Incubate and moisturize the seedlings, promote the seedlings, control the temperature within the membrane at 28°C~32°C, and ventilate at more than 35°C to prevent the high temperature from damaging the seed roots and shoots, reaching 60% when the seedlings emerge. Qimiao water once.
4. Emergence to one leaf: (1) Temperature and humidity control, ensure rooting of required moisture, temperature within the membrane is controlled at about 25°C, ventilation is required at more than 28°C, and spray water is used to transfer 1 to 1.5 ml per square meter. 3 to 4 kg of water is sprayed to prevent blight. Water spray 1~2 times in this period. (2) Control temperature and humidity control to prevent leggy and bacterial wilt. During this period, seedlings are least sensitive to moisture, and generally do not spray water. The temperature inside the film is controlled at about 20°C. During the daytime, the film is fully opened and covered at 4:30 in the afternoon. , At noon on rainy days, it is also necessary to open 2 hours for ventilation. If the temperature is lower than 10°C, do not remove the film for too long, so as not to cause cold damage, resulting in physiological diseases. In this period, if the ventilation is not enough to make the high temperature and humidity in the shed, the seedlings tend to grow in length, the roots become thin, and the vitality decreases, causing the occurrence of bacterial wilt. Practice has proved that ventilation and hardening seedlings are the key measures to promote rapid rooting and improve the quality of seedlings.
5. Two-leaf-one-to-transplantation: The measure is to moisturize and strengthen the seedlings and increase their health. Two-leaf and one-hearted water are poured once. Afterwards, the water is sprayed once every morning at 8 to 9 hours. During the day, all the ventilation is turned on. Before the frost is removed, the membrane is completely removed at 4 to 5 days before transplanting. During the two-leaf and one-heart period, appropriate foliar fertilizers (not containing chemically synthesized growth regulators) such as trace element fertilizers, plant growth assistant fertilizers, or a combination of 80 to 100 g diammonium per square meter for watering can be used. After the fertilizer water is evenly sprayed, spray water again.
6. Strong and strong standards: Seedlings 28 to 30 days old seedlings, seedlings height 12 cm, with a pupa rate of more than 50%, leaves upright, stems flat, 100 gram dry weight 3.0 grams, the number of 9 to 11; seedling age 30 to 35 days in the seedlings, height 12 to 14 cm, the number of 10 to 12, 18 to 27 cm long roots, roots white, more than 50% with two pods can be ready for transplanting.
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