Wearing shoes in Shimoda, water-saving rice farming has become a reality. The team led by Luo Lijun, a researcher of the Shanghai Center for Agricultural Biogenes, created the world's first hybrid upland rice “Shanghai Drought 1A†and achieved new breakthroughs. Drought No. 3 has been approved, the actual yield per mu exceeded 500 kg for the first time on the condition of saving water resources by 50%. Shanghai's upland rice hybridization research took scientists 10 years, screened 10,000 resources, and obtained more than 100 resources to compare drought resistance as parents. "The hybrid rice is characterized by high yield, just like a scorpion made of horses and donkeys. It has a strong vitality." Luo Lijun said that the average yield of rice per mu is about 550 kg to 600 kg, while the hybrid dry rice is saving 50% of water. Under the circumstances, it can still reach 500 kilograms, and the highest yield of the "Drought You 3" even reaches 504.97 kg, which is basically the same as that of the large-scale hybrid rice production. Luo Lijun researcher said, "After testing, the new combination of upland rice has reached the second-class quality rice standard promulgated by the Ministry of Agriculture. It is equivalent to Shanghai's most popular high-quality hybrid rice 'Hanyou Xiangqing', and there are special after cooking. Jasmine fragrance.†According to reports, the promotion of the three varieties in the southern rice area of ​​5,329,600 acres, an increase of 589 million yuan for farmers, and save 1.6 billion tons of water resources. The hybrid dry rice planted successfully in Shanghai was not only adapted to be planted in dry lands in the middle and lower reaches of the Yangtze River and “Wang Tian Tianâ€, which is relying solely on precipitation irrigation, but also “water-saving†cultivation in existing irrigated rice fields. It is estimated that the promotion area can exceed 20 million mu. Related Links Significant data from upland rice research indicates that the drought situation in China is becoming more and more serious. The incidence of spring drought is 60%-80% in the northern rice area, and over 40% in the south of the Yangtze River valley; the occurrence rate of drought and drought is 60%-70% in the northwest rice area, 40 in the middle and lower reaches of the Yangtze River, Sichuan Basin and Yunnan-Guizhou Plateau. %-50%; Autumn is more common. The year-long drought caused by our country has caused more than 30 million mu of grain loss. Experts estimate that China's 200-300 million mu sand dunes, saline-alkali lands, and dry lands in southern mountainous areas, such as hybrid dry rice cultivation, can increase rice production by more than 25 billion kilograms annually, and can intercropping within nearly 1 billion to 1.5 million mu of dry land crops. Interplanting part of the hybrid upland rice can increase ten billion kilograms of rice annually; while the traditionally low-yielding upland rice and paddy fields that grow on the “days of falling water†can increase their rice production by about 5 billion kilograms.
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