Advantages and matching cultivation techniques of Machine-sown Rice

The common ways of rice transplanting are land washing, machine transplanting, throwing transplanting and so on. According to the law of rice growth and development and the characteristics of soil and climate in Hunan, we have developed "Summer 2BR-100, 2BD150 rice seeder" (which has applied for a patent). By using machine sowing rice, we have comprehensively assembled high-yield practical techniques such as ridging cultivation, mud valley cover, open trench, single-grain shallow sowing and so on, thus solving the problems of whole seedling, uniform seedling, strong seedling and non-rotten seedling. It gave full play to the tillering potential of rice and developed well (the highest effective panicles per plant of early rice reached 37), which could achieve the purpose of increasing panicle, grain, weight and yield.

First, the model and advantages of Shuihua brand rice planter.

1. Model Shaohua 2BD-150 power rice planter, equipped with 175diesel engine tiller as power for towing, sowing 3335 square meters per hour; Shahua 2BR- 100 manual rice planter, sowing 1334 square meters per hour.

two。 The main advantages are as follows: using this machine to sow seeds per 667 square meters can save four or five labor, save about 160 yuan in cost, increase rice production by 50 ~ 80 kilograms, and increase income by about 250 yuan. After agricultural products buy the machine, the cost can be recovered in the current season and the use benefit is high. From 1997 to 2004, nearly 266.7 hectares of early rice were tested and demonstrated in Changsha, Zhuzhou and other 7 cities, with 12 hills of yield test and acceptance of early rice, with an average yield of 467m2, and an area of 2 ha of late rice, with an average yield of 431kg. In 2005, Xiao Siping produced agricultural products in Yungai Village, Lianhua Town, Wangcheng County. The early rice variety was Zhongyouzao 9815, and the planting area was 1067 square meters.

2. matching cultivation techniques for high yield

1. Early rice varieties with strong tillering ability were selected, such as Xiangliangyou 68, Zhongyouzao 9815 and Zhuliangyou 02.

two。 During the sowing period, machine sowing of early rice should be arranged to sow in sunny days before and after Qingming in early April, so that the seedlings will not rot.

3. Promote the bud before sowing should be a good bud, required to achieve bud grain and other fields, fields and so on. Seed dressing with "Hao Anwei" seed dressing agent can prevent the harm of diseases, insects, rodents and finches.

4. In late March, the land preparation began to plough and prepare the land (one plough and two harrows), level the field, and open the perimeter and waist ditches. The weather turns fine and the water accumulates in the dry field, wait for the surface to be slightly dry for 2 hours to 8 hours after sinking, and then determine the soft and hard degree of the soil: point to the surface of the mud with your hands to form holes, and the hands do not touch the mud, that is, the field suitable for sowing. If the field is too wet, the seeds are too deep in the mud to emerge; if the field is too dry to collapse in the mud, it is not easy to grow seedlings, or it is easy to be harmed by rodents and birds.

5. The amount of seed used in the field is about 1.1 kg per 667 square meters, the sowing depth is 1 cm, the switch of sowing rate is turned on 1 grid, the distance between seeding is 0.8 cm, about 20 sprouts can be sowed in 1 meter, and the hybrid rice seeds can be slightly less.

6. Apply 50 kg compound fertilizer or 30 kg slow-release compound fertilizer as base fertilizer for every 667 square meters. If yellowing of foot leaves is found before maturity, 3 kg of urea should be applied in every 667 square meters of field.

7. Other field management measures ① sowing is now green: drought control in sunny days, irrigation to protect buds when it rains, and draining after rain. ② early rice 2 leaves 1 heart hit direct seeding and other herbicides, every 667m2 combined with urea topdressing 10kg. ③ sun field: the number of seedlings in the whole field reaches 300000 seedlings per 667m2, open a good yield ditch, and watch the seedlings recover water and fertilizer after drying the field. ④ applied foliar fertilizer once or twice before ripening to prevent premature senility. The pest control of ⑤ is the same as that of washing and transplanting field.