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随着我国大量农村劳动力向非农产业转移,从事农业生产的劳动力不断减少,传统水稻移栽种植方式因费时费工逐渐被农民弃用,而直播、抛秧和机插等省时、省工的种植方式成为农民的主要选择[1]。一般来说,直播、抛秧和机插种植方式会通过影响水稻群体质量的构建和生育期长短来影响作物的生理和产量性状。氮素代谢是作物最重要的生理过程之一,与作物的产量和品质有着密切关系[2]。这
With the transfer of a large number of rural laborers to non-agricultural industries in China, the labor force engaged in agricultural production has been declining. The traditional method of transplanting rice has been gradually abandoned by farmers due to the time-consuming and labor-intensive work. The way of planting has become the main choice of peasants [1]. In general, the direct seeding, seedling throwing and planting methods will affect the physiological and yield traits of crops by affecting the quality of the rice population and the length of the growing season. Nitrogen metabolism is one of the most important physiological processes in crops and closely related to crop yield and quality [2]. This