First, nurture strong seedlings
1, choose high-yield and high-quality varieties
(1) High yields: Changbai 9 (Kyrgyz 89-45), Changbai 10 (Jifong 8) and Nongda 12 etc. (2) High quality and high yield: Kyrgyzstan 98-122, Kyrgyzstan 88 (super rice) and Bai-122. (3) The preferred varieties of wells for paddy rice in the newly opened areas: Ji 89-45 and Ji Feng 8.
2, seed treatment and germination
(1) Seed treatment 1 The purity and the cleanliness of the seeds are all above 99%, and the germination rate is above 95%. 2 The amount of 50 kg per hectare is required. 3 species selection: first wind selection and then screening. Then use salt water with a specific gravity of about 1.13 (50 kilograms of clear water plus 13 kilograms of coarse salt). The selected seeds should be rinsed with water. 4 soaking, disinfection. Use 45% of "901" or 35% of multi-effects or 35% of soaking powder to dilute the water to 500 times. Stir the seeds and disinfect them after soaking, or add 1 kg of gold power and 50 kg of water to 40 kg of rice or 1 bag. Spirit (80 grams) is immersed in 50 kg of water and immersed in 40 kg of rice. After 7 days at room temperature, it is stirred once a day and soaked until the germination begins.
(2) The optimal temperature for germination is 28-32°C. It is not appropriate to prevent the temperature from being too high to prevent “burning”.
3, nursery facilities and materials (1) bed preparation to first set the bed to lightly turn 10 cm, broken, flat, fine. Next, 1 bag (2.5 kg) of seedling bed soil conditioner was applied to 15 m2 of bed soil, and then cross-levelled to make it evenly mixed in 3 cm soil layers.
(2) Preparation of nutritious soil First, fertile paddy soil should be used. There should be no fertile upland soil or river silt that can be used for paddy soil, together with a small amount of decomposed horse dung, chicken dung, and pig manure. The prepared soil will be broken. Sieves, mixed in a 3:1 volume of soil manure, no farmyard manure plus 5% of refined chicken manure, plus 2 bags (40-50 kg) per 100 square meters. 300 kg of bed soil plus 1 bag (2.5 kg) rice nursery bed soil conditioner, the bed soil pH value was adjusted to 4.5-5.0, overturned 3-4 times, mix evenly into a nutritious soil. The best way to prepare nutritious soil in our city is as follows: 1 kg of diammonium, 0.25 kg of ammonium sulfate, 0.5 kg of potassium sulfate (or 3 kg of compound fertilizer containing 15% N, P, and K) are added for every 500 kg of soil. 25 grams of zinc sulfate (half two), set a net 50 grams, 6-8 kilograms of concentrated sulfuric acid. 2500 kg of soil needed for isolation of dry seedlings.
4, sowing 1 sowing date according to the plan to transplant the period of 35-40 days to determine the backward, the city is generally suitable for transplanting period of May 14 to 25, so the sowing date should be around April 10. 2 sowing method with a hole in the film or woven bag monolithic isolation layer, nutrition soil soil about 2.5 cm, 150-300 grams per square meter broadcast buds (500-550 grams in the new open area). Add a layer of nutritive soil about 1 cm to cover the soil. Do not expose seeds.
5. Closure of herbicides and film-covered seedbeds Special herbicides “closed” or “closed net” are used to close the grass. Use a bag (60 grams) to mix 5 kg of soil with the screen. Mix well and spread evenly to 40 square meters. (Including bedside and aisle) on the seedbed, after covering, covering a layer of plastic film, is conducive to heat preservation moist Qimiao.
6, seedbed management (1) water management: before uncovering the film is generally not water, uncover the film found in the late morning seedlings, leaves without water droplets or water beads very rarely poured once.
(2) Temperature management: The temperature under the membrane before emergence does not exceed 32°C. Before removing the membrane, the temperature in the greenhouse should be maintained at about 25°C. The temperature during the 2 leaf period should be maintained at about 23°C.
(3) Prevent disease and strong seedlings: After uncovering the rice seedlings, use a sprayer to spray the seedlings evenly once and for all. When the rice seedlings are in one heart, combine the watering sprayer with a watering can evenly to spray, look out, dry off or stand up once. Net, mainly control blight. Found that the occurrence of blight disease, with Rui Miao Qing effect.
(4) Top-dressing: Rice seedlings are top-dressed when they have 2 leaves and 3 leaves (or they have deferred fertilizer performance). The use of soil activator (250 g) per bag of 150 pounds of water to apply 50 m2 is effective. After chasing after washing water. Can also be used 1:100 ammonium sulfate fertilizer, chase 3 kg per square meter, after pouring with water wash seedlings.
Second, Honda Management
1, ploughing. Qiu Qiu is the best spring turn, and it does not turn around 10%. Plowing 15-18 cm.
2, Soda field preparation. Starting in late April, coarse ploughing and leveling were first applied, and then the water was topped up. The squatting area was to reach the finely ground soil, soft and down pine, and the flatness of the field. The height was not one inch.
3, Transplanting period: May 10 - May 25
4, density 93 or 94 per hole 3-5 strains. The new boiled field is 83 inches or 93 inches, with about 5 plants per hole. Shallow to insert 1.5-2 cm.
5, rational fertilization (ha)
(1) Base fertilizer: 20 tons of quality farmyard fertilizer or 1-1.5 tons of refined chicken manure, 100-150 kilograms of urea, 200 kilograms of diammonium phosphate, 100 kilograms of potassium sulfate, and 15-25 kilograms of zinc sulfate. Or N, P, K 15% of the compound fertilizer 450-500 kg, plus zinc sulfate 15-25 kg. Before the flooding, adjust the water layer to about 3 cm, and level the fertilizer with a tractor or hand-held water. (2) Manure fertilizer: On June 5, about 100 kilograms per hectare will be used for the special fertilizer for returning to the green passengers, or 150 kilograms of urea will be recovered. (3) Maintenance of fertilizer: Around June 25, 100 kg of urea will be recovered per hectare. (4) Panicle fertilizer: spraying foliar fertilizer such as potassium dihydrogen phosphate.
6, shallow water irrigation 1 transplanting with 90% 1-2.5 cm water layer, 10% exposed mud surface level. 2 After transplanting, it should be about 3cm shallow to the stage of childbirth. From late 37th to early August, when the average temperature is lower than 18°C, deep irrigation of 15-20cm is needed to prevent cold chilling and control ineffective delivery. In early 48 months, put shallow water 3-5 cm until the end of milk. The wax is dry, wet and dry, and the back water is not visible before. After the dew, you can generally stop the water. Pour 6-10 cm of fresh water before stopping the water and dry naturally.
7. After 5-10 days of Honda weeding and transplanting, 20% of butachlor 2 kg per hectare plus 10% of 250 kg of farmer or 30% of arogin EC 1 kg plus 10% 250 grams, with fine fluvo-aquic soil (or soil plus fertilizer) 300 kilograms, to maintain the depth of the water layer 3-5 cm 5-7 days, can also be used rice plantation 1000 grams per hectare, Daolida 1500-1800 grams or Rui responsibility Jin Shuiling, Rui Zhi Tian Bao or Evergreen No. 1 poisonous soil method, medicinal fertilizer method can be. Older valerian (1-7 leaves) with sorghum Shi, killing fast spray.
8. Diseases and Insect Pests (1) To prevent and control leaf miners, plant seedlings with oxidized dimethoate plus rooting powder foliar fertilizer once in 1-3 days before transplanting. In early June, spray 40% Dimethoate EC and 50% phoxim 1000 times for prevention and treatment. It is also possible to use enemy killing and rapid extinguishment to kill 3000-4000 times of fluid and 750 kg of liquid per hectare. (2) Disease prevention and control: In the period of rice breakage on July 20-25, spray DK, rice bran, tricyclazole, Fuji No. 1, kasugamycin or Jinggangmycin to control sheath blight, rice bran Disease and rice blast. (3) Control of rice stem borer and rice leaf roller with rice bran or real benefits. 450-600 grams of water is evenly sprayed per hectare.
9. Timely harvesting 90% of the average grain of rice is appropriate when the grain is ripe and yellow.

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