High-yield cultivation techniques for super rice

The demonstration areas of the city in 2010 are located in the townships of Miluo, Gubei and Baishui. The main varieties of super rice promoted this year are early rice super rice varieties: Luliangyou 996, Zhuliangyou 819, Zhuliangyou 02; Super rice varieties: Fengyuanyou 299 and Fengyuanyou 272; Super rice varieties of the first season: Liangyou 0293, Yliangyou 1, Zhunliangyou 527. Through demonstrations, the focus will be on the promotion of floppy dry seedling technology, soil testing and fertilizer application, "Sanding" cultivation technology, aerodynamic intermittent irrigation technology, physical and chemical technology, integrated pest and weed control technology, machinery harvesting and straw return technology. Explore different cultivation methods and methods suitable for our country to form a simple, efficient, and safe supporting high-yielding cultivation techniques that are directly displayed to the majority of farmers.

1. Early rice super rice cultivation techniques:

1.1 timely sowing, nurturing strong

The super early rice is sown in our city for a suitable period, and the floppy seedlings are planted around March 15th. The amount of seed used in the field is 2.5 kg per mu, and the seeding volume in the field is 20 kg per mu. Apply enough basic fertilizer before sowing, generally 45% of compound fertilizer in 30 mu of Mushi, and 1,000 kg of pig manure and other high-quality soil miscellaneous fertilizer. Before the emergence of the use of moist tube water, after the emergence of drought and management, promote root growth and development, seedlings at the center of a foliar spray of enemy pine, prevention and treatment of seedlings occurred cotton rot and blight, seedlings after the two leaves, selected sunny training Seedlings are removed after 2-3 days. 4 days before the picking time, the top dressing of the seedlings was diluted with decomposed human urine as a starting fertilizer.

1.2 timely transplanting, standardized cultivation

When younger than 28-30 days, when Ye Lingda 4.3-4.5 leaves when transplanting, hand-planting seedlings is best to use the rowing device to row wide and narrow rows of planting, planting specifications for the 5? (5 +10) / 2 inch, per acre Insert 16,000 trowels, and insert 2 gluten seedlings per rake. Such as the use of pull rope compartment transplanting, planting specifications 5 to 6 inches, insert 20000 per acre, each cutting 2 grain seedlings.

1.3 Reasonable fertilization, increase organic fertilizer

The principle of fertilization adopted for super early rice is: increasing organic fertilizer, reusing basal fertilizer, and applying top dressing early. General Mu Shi pig manure and other high quality soil miscellaneous fertilizer 500-600 kg, 45% compound fertilizer 30 kilograms as the base fertilizer, 5-7 days after planting acres of urea 5 kg, potassium fertilizer 5 kg for top dressing, panicle fertilizer can be inverted 3- 25% of the compound fertilizer was applied during the birth of 2 leaves. At the time of heading 70%, 50g of potassium dihydrogen phosphate, 200g of potassium dihydrogen phosphate, and 40kg of foliar spray were used to promote the panicle seed.

1.4 Wet irrigation, timely control of seedlings.

After transplanting, shallow water ground irrigation, more open field ventilation promotes tillering, keeping the field moist mainly. When the number of seedlings per mu is up to 200,000 (10 seedlings of seedlings), the seedlings in the field are set under the control of the seedlings in the field of water, in the high-fertilizer field and in the rice field in the early morning sun, and in the low-fertilizer field and the poor seedling field. The seedlings entered the booting stage and were irrigated with shallow water layer. After the ear was full, it was filled with “running horse water” to keep the field moist and mature until 7-8 days before maturity.

1.5 comprehensive prevention and control of pests and diseases.

The pest control of early rice super rice is the same as the prevention and control of common early rice pests. It is mainly used to control diseases and insect pests such as rice leaf roller, leaf borer, rice planthopper and sheath blight. The period of prevention and treatment and the ratio of prescriptions shall be based on the pest information of agricultural technology departments.

2. Late rice super rice cultivation techniques

2.1 supporting varieties

The growth period of late rice super-fern fengyou 299 is slightly shorter, and it is appropriate to use late-maturing varieties with long growing period of early rice, such as Luliangyou 996, Zhuliangyou 02, and Jinyou 402. Fengyuanyou 272 has a slightly longer growth period and can be used with mid-late-maturing varieties with a short growing period of early rice, such as Zhuliangyou 819, Tyou 706, and Jinyou 974.

2.2 Sowing period

The Fengyou 299 sowing date is scheduled for June 22-24, and the Fengyuan You 272 sowing date is scheduled for June 16-18.

2.3 Sakata Management

For super late rice, Daejeon uses 1.2-1.5 kilograms per mu, and sow 15-20 kilograms for sowing, applying basic fertilizer before sowing, generally applying 45% compound fertilizer 35 kilograms per mu, and 1000 kilograms of high-quality soil miscellaneous fertilizer such as pig manure. Do not irrigate the water tank until sowing, so as to prevent boiled shoots. When the drying chamber is dry, it is filled with “Happy Valley Water” humid chamber in the evening or on cloudy days. Keep shallow water after emergence. Putian management measures are basically the same as those of hybrid late rice in general. One-leaf and one-hearted spraying of uniconazole (5 g of uniconazole against 10 kg of water sprayed with 0.2 mu of paddy field) promotes strong seedlings, and the leaf age of young seedlings reaches 4.5-5 leaves. Plug in.

2.4 planting specifications

Super late rice planting specifications to 5? 7 inch to 5? 8 inch is appropriate, per acre inserted 1-17,000 rakes, each cutting 1-2 gluten seedlings. When transplanting, it is necessary to use pull ropes to insert the seedlings to ensure planting specifications and density.

2.5 Fertilization Technology

General Mu Shi pig manure and other high quality soil miscellaneous fertilizer 500-600 kg, or 50-60% of rice straw, Mushi 45% compound fertilizer 30 kg for the base fertilizer, after 5-7 days Mu urea 5 kg, potassium fertilizer 5 Kg as top dressing, panicle fertilizer can be applied during the birth of the inverted 3-2 leaves 45% compound fertilizer 10 kg. At the time of heading 70%, mu grain was filled with 50 grams of potassium dihydrogen phosphate (200 grams) and 200 grams of water was mixed with 40 kilograms of foliar spray to promote panicle-strength seeds.

2.6 scientific management of water, timely field

Wet irrigation-based irrigation measures are adopted on the water in the pipeline, ie deep water returns green and shallow water promotes flooding. Shallow water is applied during the fertilizing period, spraying period and heading period, and the field is kept moist during the rest of the year. When the number of seedlings per acre reaches 180,000-200,000 (average number of seedlings from 5 to 7 inches per seedling is 11 to 12 and the average number of seedlings from 5 to 8 inches per seedling is from 12 to 14), then it will fall into the water and grow into fields. Appropriate early drying, re-lighting, low fertilizer fields, poor Miaotian mainly to open field. About 7 days of maturity, water is cut off.

2.7 Integrated control of pests and diseases

The pest control of late rice super rice is the same as the prevention and control of common late rice pests. The control period and formulation medicine are based on the pest information of agricultural technology departments.

3, middle rice super rice cultivation techniques

3.1 selection of improved species.

Promotion of Liangyou 0293, Zhunliangyou 527, Yliangyou 1 and so on, and based on the new combination of super rice bred by the breeding department, do a good introduction and demonstration, and accelerate the promotion of improved varieties.

3.2 timely sowing.

It is advisable to sow in the mountainous area of ​​mountainous areas around April 20.

3.3 Childbirth Technology.

For high-yielding cultivation, farmers can use plastic floppy disk to raise seedlings. When 2.5 leaves are transplanted (or thrown into seedlings), use 434 holes/tablet trays or 353 holes/slab trays for 100 slices per acre. Mud is good, in the use of 7-10 days before the preparation of pond mud 250-300 kg per mu, adding 30 kg of urine, 1 kg of strong glutinous mash preparation mix. Using seeders or hand sowing, sowing 1-2 grains per hole, 0.8-1 kilograms of seed per acre of field, after the broadcast of a mountain rice area covered with a good plastic film, do a good job in paddy field management. When the seedlings are one leaf and one heart, use 5 grams of Uniconazole plus 10 kg of fresh water to spray 200 rubbing plates to promote strong seedling tillers. The wet seedlings can also be transplanted in the form of seedlings, and about 4.5 leaves of transplanting leaf age.

3.4 wide row dense plant transplanting.

Per acre planting density of 1.4-1.5 million baht, narrow lines to adopt a wide line, that is, 8.5? 5 inch or 7.5? 5 inch broadcast rake; or use a wide and narrow line (10,5.5) inch ? 5 inch broadcast rake, increase yield better , Insert 2 grain sorghum seedlings per slice.

3.5 Accurate fertilization.

Apply 500-600 kg of pig manure (or 300 kg of chicken manure) per hectare of field and 30 kg of 45% compound fertilizer as base fertilizer; topdressing 5 kg of urea for 5 days after transplanting, 5 kg of potassium chloride to promote seedlings; Applying 45% compound fertilizer 10 kg in the process of pouring 3-2 leaves, when the heading is 70%, mu grain 50 grams plus potassium dihydrogen phosphate 200 grams watered 40 kilograms of foliar spray to promote the panicle of Zhuangzi seed. Prevent premature aging of plants.

3.6 Timely field control seedlings.

After the transplanting, shallow water ground irrigation, with the main dew, root growth, early delivery, when the number of seedlings reached 13-14, that is, fell into the water field (light-based drying), to suppress the invalid childbirth. The seedlings enter the young panicle differentiation stage to keep the water layer irrigated. When the high temperature weather, the irrigation deep water cools down. After the panicles are filled, the “running horse water” is taken. The rear water does not see the front water, keeps the soil moist, and cuts the water for 7-8 days before maturity to facilitate harvesting. .

3.7 comprehensive management of pests and diseases.

First, a uniform anti-rodent eradication campaign was conducted on farmland 7-10 days before sowing. The second is to do a good job of seed disinfection, in the soaking of the use of strong chlorine sterilizer, control seed carrier. The third is to combine chasing seedlings with herbicides to eliminate grass and eliminate grass damage. The fourth is to focus on the control of second-, third-, and fourth-generation rice leaffolders, second- and third-generation rice stem borers, second-, third-, and fourth-generation rice planthoppers, and sheath blight. The fifth is to prevent secondary pests such as rice thrips, rice gall midge, and rice smut.

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