论文部分内容阅读
(西部地区) 本措施的生理基础是:①改善甜菜营养代谢,促进根系发育,增进机能,控制其群体结构的合理发展,防止生理早衰,提高光合性能及其产物的合理分配。②甜菜生育前期,以促进根系发育和叶丛长势为主;中期以控制叶丛徒长,使生长中心适期转移和增大吸收性能为主;后期以防止早衰和提高光合性能为主。③从提高经济产量系数出发,
(Western Region) The physiological basis for this measure is to: (1) improve the nutrition and metabolism of beet, promote root development, enhance the function, control the rational development of its population structure, prevent premature aging, and improve the photosynthetic properties and the rational distribution of its products. ② The early stage of sugarbeet growth is mainly to promote root development and leaf cluster growth. In the middle period, foliage growth is dominated by foliage growth, and the growth center is properly transferred and absorptive capacity is increased. In the later stage, premature aging is prevented and photosynthetic performance is enhanced. ③ From the economic output coefficient to improve,