Successful research and development of high-efficiency and multi-purpose rice direct seeder
Recently, the "Multi-function soil-covering Direct seeding Machine Live demonstration meeting" organized by Rice Institute was held in Buqiao Village, Fuyang City, Zhejiang Province. More than 40 experts from home and abroad attended the live viewing meeting.
In recent years, the rice transplanting technology of rice machine in China has developed rapidly, and a number of different types of rice transplanters suitable for rice production in China have been developed and produced. However, the development and research of rice direct seeding machine and machine direct seeding technology lags behind, and the mainstream rice machine direct seeding technology has not been formed. In order to overcome the problems existing in manual direct seeding of rice, such as poor seedling growth, easy lodging, premature senescence, difficulty in weeding and high cost, China Rice Research Institute cooperated with Korea Agricultural University and other units, introduced and developed the "multi-function soil covering direct seeding machine rice machine direct seeding technology", and put forward the machine direct seeding technology which is suitable for the production of rice (conventional rice and hybrid rice) in China.
At the demonstration meeting, the "multi-function soil covering direct seeding machine rice machine direct seeding technology" was adopted to complete the work of land preparation and ditching, sowing and covering soil, and deep application of fertilizer at one time, so as to improve the rice farming efficiency and save the rice farming cost. won the high evaluation and strong interest of the experts on the spot.
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Plateau Japonica No. 1 (Rice)
The main results are as follows: (1) Variety source: it is an alpine japonica rice variety, which was bred by seed Station of Yanyuan County, Liangshan Prefecture in 1978 from the intermediate material "7801-10Mui 2mi 39". (2) characteristics: the strain has compact plant type, raised flag leaves, green leaves and light green internodes, strong cold tolerance at seedling stage, strong growth, strong tillering ability and good color conversion in the later stage. The plant height is 90 cm and the whole growth period is 185 days, which is 4-7 days later than that of the control japonica 9. The ear is 17 cm long and the number of grains is 1.
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Effect of High temperature and Heat damage on Rice production in Fanchang County and its Prevention and remedial measures
In the process of rice production, the most influential and difficult climatic factors are temperature and moisture. Reasonable irrigation can replenish and regulate water, but the temperature is difficult to control. It has a significant impact on the life of rice. Rice is the main crop in grain production in Fanchang County, which ranks first in terms of planting area and total yield. At present, the rice planting area in Fanchang County is about 16360 hectares (including multiple cropping index), of which medium indica rice is about 13191 hectares (mainly hybrid rice), early rice is about 1514 hectares, and double late rice is about 1655.
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