Early rice high-yielding cultivation techniques

1. Use good seeds to lay the foundation. Choose high-yield varieties with good comprehensive traits, high rice quality, moderate growth period, and resistance to cold and disease resistance, such as Zhongza 39, Xiangzaoxian 45, Liangyou 42, Tanliangyou 83, Zhuliangyou 211 and so on.

2. Focus on education and development. To promote intensive breeding, the main method is to use a floppy disk to wet seedlings. In late March, select fine weather for sowing. Prepare 353 holes of 90-100 plastic floppy disks per acre. Appropriately increase the amount of seed used, the amount of rice used per acre conventional rice 6-7 kg, 3 kg hybrid rice seed. Pay attention to seed disinfection and prevent diseases such as bastard disease. The seeds and grains of the buds will be evenly sowed, and the cover film will be used to heat the seedlings and compacted with mud. The 2-3 days prior to throwing planting will be used to fertilize the manure, with 2-3 kg of urea and 2 kg of potassium chloride per mu of paddy fields, and watered with water. During the period of childbearing, when diseases such as cotton rot occur, they are treated with Dixon and Mimicarb. It is better to transplant the rice seedlings to promote hybrid rice varieties.

3 throw enough seedlings to ensure high yield. Choose fine weather in mid-April and throw it away in due course. For early rice, 3.5-4 leaves are usually cast seedlings, and the seedling age is controlled within 28 days (machine insertion age is controlled within 20 days). Amount of 2.2-2.5 million tombs per mu, hybrid rice thrown 8-10 million basic seedlings per mu, conventional rice thrown 13-15 million seedlings per mu. At the same time, do a good job Daejeon finishing, do Tianping as a mirror, open a good car trench, waist ditch and Wai ditch, to ensure the quality of casting, even planting.

4. Reasonable fertilization to promote early-onset. The first is to replenish basal fat. Basal Mushi compound fertilizer 40-50 kilograms, to increase zinc granules 1 package. The second is to apply fertilizer early. Fertilizer should be as early as possible, in the 4-5 days after throwing (inserting) wolfberry fertilizer will be a one-time application of all fertilizer, mu application of urea 5-6, 7-8 kg of potassium chloride, promote seedlings early hair; while using good security Weeding herbicides and doing a good job of chemical weeding. The third is to skillfully apply strong fertilizer and spray strong seed fertilizer. After rejuvenating in the dry field, the general situation is that there is no fertilizer, and there are fields lacking fertilizer. Urine 1-2 kg and potassium chloride 3-4 kg per mu are used. At the time of heading 50%, Mushi grain is full 1 packet for strong seed fertilizer.

5. Scientific management of water lodging. After throwing (inserting) alive, dry and wet alternate irrigation (before the water does not see the former water) is performed to promote root growth. Generally around May 10, when the hybrid rice reaches 230,000 seedlings per mu and 280,000 seedlings of conventional rice, the field is sun-dried, so that when the seedlings reach the unequal time, the seedlings are not equal. The seedlings grew well and the field was dried earlier; the poor growth of the seedlings must be soaked before and after May 20 at the latest. Due to the rainy weather in May, the sun can be properly re-sunshine. After rejuvenating the field, dry and wet irrigation is applied until harvesting. Do not cut off water prematurely.

6. Prevent pests and reduce losses. Grasp the prevention and control of rice blast, sheath blight, rice leaf roller, rice stem borer, rice borer, etc., choose high efficiency, low toxicity and no residue pesticides, use sufficient water, timely and early treatment, keep the fields when spraying The water layer ensures good control effects, reduces losses caused by pests and diseases, and increases production and income.

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