寒旱农业科学2024，Vol.3Issue(10)：926-930,5.DOI:10.3969/j.issn.2097-2172.2024.10.008
休闲期复种绿肥冬油菜对陇中旱地春小麦氮磷利用率和产量的影响
Effects of Green Fertilizer Winter Rape Multi-cropped in Leisure Period on Nitrogen and Phosphorus Utilization Efficiencies and Yields of Spring Wheat in Dryland Areas of Central Gansu
摘要
Abstract
Nitrogen and phosphorus play an important role in the formation of spring wheat yield.In order to improve the uptake and utilization of nitrogen and phosphorus in spring wheat,field experiments were conducted to study the effects of planting and pressing winter rape in leisure period on wheat yield and nitrogen and phosphorus uptake and utilization efficiency of wheat grain and straw.The results showed that the biomass and grain yield of spring wheat increased by 23.03% and 17.68%,respectively.Nitrogen content in grain and straw decreased by 5.44% and 27.39%,respectively.Nitrogen uptake in straw decreased by 8.69%,and nitrogen uptake in grain increased by 11.29% .Phosphorus content in grain increased by 11.35%,phosphorus content in straw decreased by 10.00%,and phosphorus uptake in grain and straw increased by 30.84% and 12.50%,respectively.Nitrogen partial productivity and nitrogen use efficiency increased by 17.65% and 12.18%,respectively,phosphorus partial productivity increased by 17.65%,and phosphorus use efficiency decreased by 5.34% .In conclusion,multiple planting of winter rape as green fertilizer during fallow period can improve the phosphorus content,nitrogen and phosphorus uptake,nitrogen and phosphorus fertilizer partial productivity and nitrogen use efficiency of wheat grains,and then effectively increase wheat yield.关键词
绿肥冬油菜/春小麦/氮素利用效率/磷素利用效率/产量Key words
Green fertilizer winter rape/Spring wheat/Nitrogen use efficiency/Phosphorus use efficiency/Yield分类
农业科技引用本文复制引用
张宝时,李国权,裴希谦,鞠青夏,张金兰,杨钊,牛树君,曹世勤..休闲期复种绿肥冬油菜对陇中旱地春小麦氮磷利用率和产量的影响[J].寒旱农业科学,2024,3(10):926-930,5.基金项目
甘肃省农业科学院重点研发计划(2023GAAS24) （2023GAAS24）
甘肃省农业科学院生物育种专项(2022GAAS006). （2022GAAS006）
