以下为句子列表：
英文: A HYV is required to possess higher photosynthetic efficiency and respond to high rates of nitrogen fertilizer and resist to lodging as well as maximize yield components.
中文: 高产品种要具备高光合效率、对高施氮量的反应、抗倒伏并使产量构成因素最大化。
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英文: Data of yield components indicate that the grain number is 31,500 and 33,000 seeds per square meter from the traditional and modified nitrogen fertilizer application respectively.
中文: 产量构成数据显示，传统施氮方法和改良方法每平方米籽粒数分别为31,500和33,000粒。
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英文: In Liaoning before, all nitrogen fertilizer was applied at early growth stages of rice by the traditional application.
中文: 以前辽宁省所有氮肥都在生育前期用传统方法施入。
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英文: Nevertheless, use of soil incorporation for urea and anhydrous ammonia to reduce volatilization, the practice of delaying nitrogen fertilizer application in imperfectly drained soils to minimize denitrification and leaching, and patience in the case of im
中文: 但是，采用把尿素和液氨和土壤掺混施用以减少氨挥发，在排水不良的土壤上采取延迟施氮期的办法以减少反硝化及淋失，以及对于氮固定问题采取耐心克制的态度，这些问题就都能得到解决。
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英文: Rational utilization of nitrogen fertilizer is one of the key factors to reduce production cost while improve the production of crops.
中文: 摘要合理施用氮肥是降低生产成本、提高作物增产的关键技术之一。
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