Page 33 - 《华中农业大学学报(自然科学版)》2023年第6期
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第 6 期                  鲁剑巍 等:我国冬油菜养分精准调控策略与高效施肥技术体系                                        25



                       Strategy of precisely controlling nutrient and system of efficient
                               fertilization technology for winter rapeseed in China




                                  LU Jianwei,REN Tao,LI Xiaokun,CONG Rihuan,LU Zhifeng,
                                     ZHANG Yangyang,LIU Shishi,LIAO Shipeng,ZHU Jun
                               College of Resources and Environment/Microelement Research Center,
                                    Huazhong Agricultural University, Wuhan 430070, China


                   Abstract  Winter rapeseed (Brassica napus L.) is an important oil crop in China and a major winter
               rotation crop in southern China. Developing rapeseed production is of great strategic significance for ensur⁃
               ing the safe supply of food and oil in China. Since the beginning of the 21st century, the previous fertiliza⁃
               tion technology is no longer suitable for new production models due to the shift from transplanting rapeseed
               to direct seeding and light planting. The development of the rapeseed industry has put forward new require⁃
               ments for the theory and technology of fertilization. This article summarized the progress in the field of rape⁃
               seed fertilization technology in China in the past 20 years. The workers from agricultural science and tech⁃
               nology in China proposed a precise nutrient regulation strategy for winter rapeseed through collaborative ef⁃
               forts, which involves the combination of nitrogen, phosphorus, potassium, boron, and magnesium, partic⁃
               ularly  in  the  promotion  of  nutrients  at  the  early  stage  of  growth  and  stabilization  of  nutrients  at  the  later
               stages  of  growth.  A  nutrient  regulation  method  including “precise  fertilization  to  strengthen  seedlings  and
               promote  high  yield”  at  the  early  stage  and “relying  on  stable  soil  nutrient  supply  to  promote  efficient  and
               stable yield” at the later stage for winter rapeseed was established. The “five precision” rapeseed efficient
               fertilization  technology  with “precise  source,  precise  ratio,  precise  rate,  precise  time,  and  precise  place”
               as the core was innovated. A series of new fertilizer products including balanced fertilizers with a specialized
               formula of required nutrients, slow-release fertilizers, and controlled-release urea were developed. A light,
               simple,  and  efficient  fertilization  model  was  established,  optimized  and  applied  at  large-scale,  supporting
               the green, high-quality, and efficient development of the rapeseed industry. In response to the new opportu⁃
               nities and challenges faced by winter rapeseed production in China, prospects including strengthening effi⁃
               cient  fertilization  techniques  for  short-growth-period  rapeseed  in  southern  China,  developing  fertilization
               techniques suitable for the multifunctional utilization of rapeseed, exploring nutrient management techniques
               to cope with climate change, further strengthening the research and development of new high-efficiency spe⁃
               cialized fertilizer products and innovation in fertilization technology matching with the development of mod⁃
               ern agriculture, and attaching importance to the breeding and application of rapeseed varieties with high nu⁃
               trient efficiency are proposed from the perspective of fertilization technology.
                   Keywords  direct  seeding  of  winter  rapeseed;nutrient  regulation;high  nutrient  efficiency;precision
               fertilization; light and simple planting


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