Yuzhong City, Sichuan Province has been listed as the county (city) of 51 national rice mechanization and planting technology demonstration and promotion projects by the Ministry of Agriculture. This year, mechanical transplanting has basically ended. In this year's demonstration and promotion work, several problems and solutions that should be noted are summarized for reference only.
First, the problem
1. The seedlings are not uniform. Four demonstration sites in the city selected winter paddy field nursery, mainly using floppy disks and a small number of hard disks. They were strictly carried out according to the breeding technology and standard process. They were dried in dry valley, swollen valley and bud valley respectively. On the fifth to tenth day after seedling, the seedlings were found to be irregular. , different shades and uneven thickness.
2. After the machine is inserted, the seedlings are broken. After the machine was inserted, the farmers responded with more seedlings, mainly due to the emergence of seedlings, and then excessive fertilization, the seedlings grew fast, the thickness of the mast was uneven, and the leaves were too long.
3, after the machine is inserted, there are more vacancies, and the farmer has a large amount of work. Mainly due to the uneven seedling planting, caused by two cold wave dead seedlings before and after the Ching Ming Festival.
4. Seedling time is not allowed. The city's nursery time began on March 27, and the transplanting of rice seedlings and other fields occurred from April 28 to May 18. The final machine was over 40 days old.
Second, the solution
1. The seedlings are not uniform. After comparing with the observation and analysis of last year and this year's dry nursery, we should choose dry field nursery, and the wet management effect is better.
2. After the machine is inserted, the seedlings are broken. The seedlings of "dwarf, strong and even" should be bred in strict accordance with the rules of mechanical breeding.
3, the machine is missing after the insertion. In the breeding of seedlings, the three levels should be strictly controlled: First, the selection of species should be carried out to remove grains that are not germinated or germinated. The second is the sowing. Generally, the seeding rate is determined by a trampoline. It must be evenly planted in three to four times. The first time is 50%, the second time is 30%, the third time is 20%, and the fourth time is four times. Press 10% each time. The third is to prevent and cure diseases and prevent dead seedlings.
4. Grasp the seedling time. It should be suitable according to the planting time to push the breeding in January, to ensure that the machine is not more than 40 days old, and the breeding time is best to avoid the cold wave period around the Ching Ming Festival.
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