Key points of high-yielding cultivation techniques for Guodao 6

Guodao 6 is a new single cropping rice variety with high yield and good quality bred by Dr. Cheng Shihua, director of China Rice Research Institute, and breeding expert Cao Liyong by molecular marker technique. The whole growth period of Guodao No. 6 is about 140 days. It has the advantages of developed root system, fast tillering, wide and stiff leaves, strong stem, large panicle type, grain weight, high yield and excellent rice quality, so it is suitable to be popularized and planted in our city.

Key points of cultivation techniques:

1. Sowing at the right time: it is suitable for local sowing on May 25-28. Before sowing, soak and disinfect the seeds with "actinomycete", and accelerate germination to sow seeds in white. The seeding rate in the seedling field is 6 kg / mu.

2. Seedling raising and early transplanting of middle seedlings: the first stage of semi-arid seedling was adopted, with seedling age of 18-25 days, leaf age of 4.5-5.5 leaves, and 1-3 tillers per seedling (that is, Erya fork stage).

3. Good application of base fertilizer: apply more organic fertilizer and sufficient base fertilizer before rotary tillage.

4. Reasonable close planting: high yield requires 1-11000 clumps per mu, 14-15 ears per clump, 180 grains per panicle and 31 grams per 1000-grain weight. Insert 1-2 books in a cluster. Avoid high temperature and prevent abortive seedlings.

5. Scientific fertilization: one week after transplanting, one mu was mixed with urea 3-4kg for weeding and topdressing. In 12-14 days, urea 5-8kg was applied to promote tillers, and when 10 seedlings were produced, 8 kg of potassium chloride was applied per mu for 3-5 days to control tillers. At the early jointing stage, 15kg compound fertilizer was applied per mu as panicle fertilizer to promote strong stalk and large panicle. In the later stage, flower protection fertilizer and grain fertilizer were applied and leaf fertilizer such as potassium dihydrogen phosphate was sprayed.

6. Aerobic irrigation, strong roots and healthy seedlings: open fields as much as possible, dry and wet alternately, which is conducive to deep roots and promote the growth of rice plants. (except for the belly stage and flowering stage). When 14-15 plants per clump, roast the field in time to control seedlings.

7. Seize the opportunity to cure diseases and insect pests: the most important thing for rice pest control is timely, with emphasis on the prevention and control of drills, leaf borer, rice lice and sheath blight.

8. Live the tree until it is old and ripe before cutting it. Single cropping rice has a large panicle head and a long filling period, requiring 95% of the grains to be harvested when they are full and turn yellow.