New techniques for intensive cultivation of Rice in Green Cold regions
Agricultural science and technology innovation is the fundamental measure to improve agricultural comprehensive production capacity. Safety, ecology, income increase and efficiency increase are the new directions of rice production and development. A new cultivation technology-rice intensification cultivation has been successfully tested in Suihua Yongan Farm for four years.
I. Cultivation characteristics
Save seed, save water, save labor, save seedling materials, save seedbed area, at the same time environmental protection, yield increase, cost saving, increase benefits, wide adaptability, is the world's advanced rice production cultivation technology.
II. Main cultivation techniques and characteristics
1. Breeding of early maturity, high yield, strong resistance, strong tiller of the high-quality varieties "Qiangqiang No. 1."
2. Nursery seedlings transplanting, from the milk two leaves before transplanting, do not hurt the roots, do not slow seedlings.
3. Increase organic fertilizer, protect environmental sanitation and maintain ecological balance.
4. Single plant transplanting, fully prolong the utilization of light energy per leaf.
5. Reasonable density planting, give full play to the ability of production and development of individual plants, cultivation density of 9×9 (inch).
6. Rational irrigation and effective utilization of soil.
7. Sowing and transplanting in time can reduce the loss of seed nutrients, and seedlings can grow and develop at the optimum temperature.
8. Careful management:
(1) Seed intensification.
(2) Seedling tray throwing, reduce root injury, reduce transplanting and seedling transportation time, prevent slow seedling.
(3) Organic fertilizer, chemical fertilizer, micro-fertilizer and biological fertilizer shall be applied at one time before water discharge to achieve deep fertilization and ensure seedling growth and development.
(4) It is best to irrigate "running horse water" once after transplanting, shovel four times again, increase soil oxygen, prevent surface cracks from damaging roots, and irrigate "running horse water" in late tillering stage.
III. Benefit analysis
1. Save seeds, strengthen cultivation with 10 catties of seeds per hectare, 60 catties of conventional seeds, save 50 catties of seeds.
2. Save seedling materials, conventional seedling for 1 month, intensive cultivation for 15 days, save 50%.
3. Save water, do not always maintain the water layer, irrigation "running horse water".
4. Save seedling area. Intensive cultivation requires only 60 square meters of seedlings per hectare, while conventional cultivation requires at least 100 square meters.
5. Save transplanting labor, do not need to pick seedlings, Honda seedlings, with the planting.
6. Increase production by 10%~20%, save cost by 10%~20%, increase benefit by more than 25%~35%.
IV. Sowing time
The third accumulated temperature zone is from May 3 to 10.
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Cultivation techniques of Green Rice
First, select improved varieties and highlight excellent characters. Highlight the characteristics of high-quality varieties, select good stress resistance, strong tillering ability, large spike, suitable for dry breeding in greenhouse, super-sparse planting mode of middle and late-maturing varieties, seed quality above grade II, germination rate more than 95%, purity more than 98%. Germination test was carried out before sowing, and seeds that could not reach the standard could not be made. Second, catch early before snatching and compete for accumulated temperature. Everything should highlight an early word, mainly early raising seedlings and early transplanting rice seedlings. Raise seedlings early in the greenhouse. Sowing and raising seedlings in the first and second accumulated temperate zones in early April, and April in the third and fourth accumulated temperate zones
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Green milk copper has a good effect on the control of rice bacterial leaf spot.
In general, the control effect of chlorothalonil is 85%, which is 10% higher than that of chlorothalonil made in Japan. Usage: it can be sprayed twice in the general epidemic year, and the first spray is used in rice panicle differentiation 2mur4 stages, 7 days after treatment, the condition tends to be stable, the newborn acute disease spot significantly reduces, the original disease spot transmits yellow to stop the development, 10 days later, the second spraying, each mu with 12% green brass 100mL, diluted 500tel 600 times spray. After 20 days, the color of rice leaves turned green obviously, and the new flag leaves and inverted second leaves were absent.
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