Tianlongyou 619 belongs to the indica hybrid rice variety. The average growth period of the mid-late and late-maturing rice fields in Northeast China and Northwest China was 157.3 days, which was 3.1 days later than the control autumn light. It has the characteristics of full grain, excellent rice quality and high yield. The high-yield cultivation techniques of Tianlongyou 619 are now shared as follows:
First, the variety profile
Tianlongyou 619 is a light-temperature insensitive three-line hybrid japonica rice, which is a high-quality rice new variety with natural flavor. The growth period is about 151 days, which is a medium-early maturity variety. The plant height is 110 cm, the plant type is compact, the tillering force is strong, the scattered panicle type, the ear length is 19 cm, the grain number of the ear is 111.6, the weight of the thousand grain is 28.7 g, the color of the glum is golden, and there are awns.
The brown rice rate is 83.8 %, the polished rice rate is 75.7%, the whole polished rice rate is 71.3%, the grain length is 6.3 mm, the grain length to width ratio is 2.5, the chalkiness rate is 16%, the chalkiness is 1.8%, the rice quality is excellent, and the taste is good. Strong disease resistance, medium resistance to ear neck. It has good functions in seedling stage and late growth stage, and it is prosperous and low temperature resistant.
Second, cultivation technology program
1. Seedbed preparation
The seedbed bed selects plots with higher topography, relatively dry, no salt and alkali, no soil pollution; before planting, rotary tillage, rolling and leveling, compaction and flattening.
2, seed treatment
Sun-breeding: 3-4 days before sowing.
Soaking seeds: soaking seeds after sun-breeding, soaking seeds for 5-7 days under normal temperature conditions (soaking days = 100/average temperature during soaking), ensuring that the seeds absorb 25% of their own weight. Focus on prevention and control of mite disease, pay attention to: (1) do a good job of soaking seeds, soaking seeds for not less than 36 hours, and recommending 25% cymene suspension from Jiangsu Institute of Pesticide Research Co., Ltd. That is to protect the body, with 25% of the suspension concentrate 3000-4000 times liquid soaking, that is, 25-33 ml of strong water for protection 100 kg, soaking seeds 80-100 kg of rice seeds) or Germany Bayer's top seedlings new (100-150g Dip 200 kg of rice seeds, water solvent is 4 ml soaked seeds 2 kg of rice seeds).
Seed dressing: 2-3 hours before sowing, use the anti-bacterial agent (A double carbaryl, 40% Miaoqing, etc.) for seed dressing, use bright shield (1 bottle with 70 kg seeds) (Zheng Zhengda), etc. Soak seeds after coating.
3, the amount of seed
In the north-central rice area of ​​Jilin Province, it is recommended to plant early indica early transplanting. It is recommended to germination after soaking seeds. Generally, it is sown at the end of March to early April. The seed is 2.5-3.0 kg per acre (667 m2), and the amount of dry seeds is 200-250 g/square. Rice; machine transplanting 120 grams per plate (disk size 58 cm × 28 cm), timely ventilation and refining, 35-40 days of age, cultivate strong.
In the south-central part of Jilin Province, the eastern mountainous area of ​​Liaoning Province and the northwestern rice area, early planting early transplanting is recommended. Generally, it is planted at the beginning of April, with a seed amount of 2.0-2.5 kg per acre, and artificially transplanted sowing seeds with a dry seed amount of 150-200 g/m2; The seedlings are sown 100 grams per dish (the size of the insertion tray is 58 cm × 28 cm), and the seedlings are ventilated at the right time, and the age is 35 to 40 days.
In the middle and south-central plains of Liaoning Province, it can be planted late in the evening, and can be planted at the end of April. The seedlings are planted with 150-200 g/m2 of dry seeds, and the machine is transplanted with 100 g/disc per plate. Cm × 28 cm), increase the degree of ventilation and refining after emergence, can be used for non-woven seedlings, ageing 30 to 35 days.
4, seedling management
Putian management is mainly to adjust the temperature and moisture reasonably, pay attention to "insulation, water control." After sowing, to the emergence of seedlings, pay attention to doing a good job of heat preservation and moisturizing. 1 leaf 1 heart to three leaf stage, the temperature inside the bed should be controlled at 20-30 °C. More than 30 ° C, it is necessary to properly ventilate the seedlings to prevent high temperature burning. Generally, the ventilating refining starts at 2 leaves and 1 heart. It is not ventilated in front. It is ventilated every day at 7-8 am and closed at 3-4 pm. The principle of ventilation: It should be based on the principle that “the temperature comes up, the shed cloth is smashed upâ€, “first open the small mouth, then open the big mouthâ€, “first back, back frontâ€, “sunny day, rainy dayâ€. After the seedling 3 leaf stage, the temperature in the bed is controlled at 20-25 °C. When the night temperature is above 10 °C, it is not necessary to close the shed. The humidity inside the pan is controlled at 70%.
In the case of not affecting the normal growth of the seedlings, the number of watering should be reduced as much as possible during the seedling period. The principle of watering the seedlings in greenhouses: "Water shortage and watering, no shortage of water, no pouring, only seeing wet, see dry." Water management to achieve "three look": a look at whether the soil surface is whitish and root growth, second, see if the tip of the leaf is spit in the morning and evening, and see if the new leaf is curled at noon. Before the 3 leaf period, you must not "water every day" to prevent the longevity and disease.
In the weeds 3 leaves before the application of enemy or a thousand gold to control weeds. Disease prevention and control: Spraying a double carbendazim, Yumiaoling, Liangdun (1 bottle 2 and two contents 100-150 square meters) in the second leaf of the seedlings.
Fertilization amount: Nutrient soil containing no nitrogen fertilizer, in the 1 leaf-2 stage, according to leaf color and growth, ammonium sulfate 1-1.5 kg / 100 plates. 5-7 days before transplanting, apply the appropriate amount of ammonium sulfate 1.5-2.0 kg/100 plates. After fertilizing water, wash the seedlings with water to prevent the seedlings from suffering fat.
Before transplanting: You can spray Fugo, Aketai, Kangkuan, etc. (8-10g per mu) to control rice water weevil. At the same time, the application of root extract such as brassonin to promote the development of new roots in rice, and quick survival and early tillering after transplanting are conducive to high yield.
5, soil preparation
Because the root line of hybrid rice 619 is developed, it is recommended to turn over the autumn (the depth of ploughing is more than 25cm). If it is not possible to implement the promotion of autumn turning over the land, the second rotary tilling land preparation (rotation depth 20cm). The target is fine and flat, and the height difference within the same pool is within 2-3 cm. After the pulping is leveled, the mud should be solidified, and the water layer should be kept closed for 2-3 days in combination with the weeding. After a moderate sedimentation, the thin water machine can be inserted. This variety is recommended to be planted in plots that can be harvested in advance near the operation road. It is not recommended to plant in plots that do not have drainage or drying conditions, such as low sorghum.
6, transplanting
The transplanting period: combined with the temperature, when the average daily temperature is stable through 10 °C, it can be inserted. Machine seedlings lacking seedlings to replenish seedlings in time, can not lack seedlings and ridges.
When planting in the eastern mountainous areas of Liaoning Province and in the northwestern rice-growing areas or in Jilin, it is necessary to transplant them in time. It is required to insert the sputum before May 20, so that it can be inserted early and fast. The density of transplanting should be flexibly controlled according to the tillering power, soil fertility, input level, seedling robustness, and the time of transplanting. Generally, the plant spacing is 9×4-5 inches, and 3 to 4 seedlings per hole. Regardless of the density, the final seedlings must be around 60,000/mu.
The middle and south-central plains of Liaoning Province or the southeastern coastal rice areas can be transplanted late, and can be inserted before June 10. The density of transplanting should be based on the tillering power, soil fertility, input level, seedling robustness, and transplanting time. Be flexible in the morning and evening. Generally, the transplanting density is 9×6 inches, and 3 to 4 seedlings per hole. In order to ensure the yield, the field with a late evening or thin soil should be appropriately increased in density, which can be increased to 9×5 inches, and 3 to 4 seedlings per hole. Regardless of the density, the final seedlings must be around 50,000/mu.
7. Reasonable fertilization:
Mu fertilization of organic fertilizer, pig manure 2000 kg (1 party), or cow dung 4000 kg (2 square), or chicken dung 1000 kg, or chicken manure dry 500 kg. (According to the conditions, it can be used to improve the yield and quality of rice)
Base fertilizer: medium fertility plot, all the fertile farmyard manure is evenly spread on the field before rotary tillage, and then rotary tillage; 10 kg of diammonium phosphate, 15-20 kg of silicon fertilizer, 2.5 kg of potassium sulfate, zinc fertilizer (21% content) 2 kg / mu; 15 kg of urea is added to the field where no farmyard manure is applied, and the base fertilizer is applied once, and then the water is simmered to make the various fertilizers fully and uniformly mixed in the soil layer of 5-10 cm. in.
Manure: After slowing down the seedlings, it is necessary to apply 10 kg of ammonium sulfate (or 5 kg of urea), 7.5 kg of potassium sulfate, and 1.5 kg of zinc sulfate in a timely manner. At the same time, a growth regulator such as "short one" is applied to prevent lodging.
Spike fertilizer: According to the growth of rice, the application of panicle fertilizer is determined as appropriate. Generally speaking, it is forbidden to apply ear fertilizer when the soil is not de-fertilized, and the soil fertility is high. After the application, it will cause late maturity and serious disease. For soil fertility, the field of de-fertilization can be less applied to the fertilizer. Acre of ammonium sulfate 2.5 kg. At the mature stage of grain filling, foliar fertilizer such as potassium dihydrogen phosphate was sprayed twice to improve the quality of rice.
8. Pest control:
5-7 days before the earing, tricyclazole (75 grams of tricyclazole wettable powder per hectare, 375 grams of water, 1000 kg of water) to prevent rice blast, the first leafy field to join Fuji No. 1 (40%) Fuji No. 1 emulsifiable concentrate 1500ml, sprayed with 1000 kg of water). Fields with high fertility should pay attention to the control of sheath blight, bacterial blight and rice water weevil, stem borer and other pests.
Weeding is usually applied to the water two days before the transplanting, and the effect of controlling weeds is better. Commonly used agents are butachlor and oxacillin. For transplanted fields with valerian, sedge and broadleaf, 60% butachlor 100-150 g plus 10% agricultural 10-15 g, 5-7 days after transplanting The tidal soil is evenly spread 10-15 kg. Maintain a 3-5 cm shallow water layer for 5-7 days while applying.
9. Water management:
According to the water requirement of rice, except for the seedling stage, the tillering stage, 15-20 days before and after heading, 24 to 48 hours after topdressing and herbicide application, it is necessary to establish a water layer, and the rest of the period can be dry and wet. The water-saving irrigation technology of the water after seeing the water, when it is dry, sees fine cracks on the ground. When wet, the whole field is filled with horse water and does not maintain the water layer.
Specific requirements: shallow water irrigation is carried out from the transplanting stage to the tillering stage, shallow and wet irrigation is used in the peaking period, and the field is properly dried at the end of the tillering period (around June 25, the number of seedlings per hole in the field is 20, and the field starts to dry, about a week, saline-alkali land and sand Except for land), excessive control of ineffective tillers occurs, enhances lodging resistance, and is conducive to pest control. From the booting stage to the earing stage, a certain water layer (3-5 cm) should be maintained, which is conducive to earing and grouting. Shallow, wet and dry intermittent irrigation is adopted in the late filling stage, which is conducive to promoting early maturity, and it is not suitable to cut water too early in the late growth stage. Generally, water can be cut off about 10 days before harvest.
10. Harvest at the right time:
Harvesting criteria: The best time for harvesting is from the late waxy stage of the rice to the early stage of ripening, and the harvest is suitable when the water is between 16% and 18%.
The above is a high-yield cultivation technique for hybrid japonica rice variety Tianlongyou 619. I hope the content will help you. If you want to know more about agricultural technology, please pay attention to the Hui Nong School.
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