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The second key technology is cultivation. The technical points are as follows: (1) sowing and cultivating strong pods: sowing from the end of April to the beginning of May, sowing of 150-187.5 kg per hectare in Dianchi Lake, strengthening management, cultivating multiple crops; 2 timely transplanting, reasonable close planting: Planted in the middle and early June, each planted 225,000-30 holes per hectare, and the basic seedlings were 1.05 million-1.2 million; 3 Scientifically stimulating and coordinating groups: fertilization mastered the principles of “pre-heavy, medium-control, and post-supply†and the total number of seedlings Up to 2.7 million hectares per square hectare of drainage area, peak seedlings not exceeding 4.2 million hectares per square hectare, 2.24 million to 2.7 million hectares of panicles; 4 control of pests and diseases, conservation of seedlings and preservation of panicles: good rice thrips, secondary pupae, longitudinal leaf The control of sputum and sheath blight.
(II) Market Potential and Benefits Prediction The performance of Teyou 559 in the national regional trials has shown wide adaptability. The multi-demonstration demonstrations were favored by the users of the middle-level japonica region in the southern provinces. In the 3 years after the naming, they were already in Jiangsu. , Anhui, Henan, Hubei, Guangxi, Guizhou, Yunnan, and Fujian provinces demonstrated and promoted 870,000 square hectares, generally yielding about 10% more than Shanyou 63, demonstrating an area of ​​93,000 square hectares in 1996, and 267,000 square meters in 1997. Hectares, which was 533,000 square hectares in 1998, increased exponentially year by year. The promotion momentum was swift and swift, and the yield increase effect was significant. The application prospect was wide and gradually replaced the trend of Shanyou 63. All areas suitable for planting Shanyou 63 were Teyou 559. market.
Teyou 559 has an estimated service life of 10 years. At present, it has cumulatively promoted 867,000 square hectares and created an economic benefit of about 900 million yuan. It is estimated that the cumulative promotional area of ​​Teyou 559 can reach 13 million square hectares. The annual promotion peak area is expected to appear in In 2001, the peak area is expected to reach about 3.3 million square hectares. Accumulated economic benefits are expected to exceed 10 billion yuan.
(III) Investment scale and product use The investment scope of the project includes two aspects of seed production and promotion. Seed production includes the purification, reproduction and seed production of the parents. In the highest year, an area of ​​17,000 square hectares must be planted. Industrialization of seed production must be strengthened. This is an important part of investment. The promotion is mainly to ensure large-scale technical services and consulting work under the premise of ensuring adequate seed sources. The estimated total investment is about 50 million yuan, which is equivalent to less than 0.5% of the economic benefits created by the project.
The product of this project is mainly rice, and rice is the main foodstuff in China, especially in the southern rice region. It is also an important material for aquaculture, processing industry and international trade, and has a wide range of uses.
Techniques for the cultivation of hybrid rice Teyou 559
(I) Key technical points One of the key technologies is to pay close attention to parental purification and improve the quality of seed production: Longtepu A, one of Teyou 559's parents, has poor fertility stability and is sensitive to photosensitivity. The purification is carried out to ensure that the purity of the seed to be seeded exceeds level 2 of the national standard.