Journal of Nuclear Agricultural Sciences ›› 2021, Vol. 35 ›› Issue (11): 2645-2654.DOI: 10.11869/j.issn.100-8551.2021.11.2645

• Isotope Tracer Technique·Ecology and Environment·Physiology • Previous Articles     Next Articles

Effects of Reducing Application of Functional Bacterial Compound Fertilizer on Nutrient Absorption and Fertilizer Utilization of Head Cabbage

ZHOU Xuan1(), PENG Jianwei2,*(), YANG Pinling2, CHAI Huiqing3, ZHONG Xuemei2, KANG Xingrong2, XU Zhangqian2, ZHANG Huiru2   

  1. 1Institute of Soil and Fertilizer, Hunan Academy of Agricultural Sciences, Changsha, Hunan 410125
    2College of Resources and Environment, Hunan Agricultural University, Changsha, Hunan 410128
    3Hunan Wabote Biotechnology Co., Ltd, Hanshou, Hunan 415907
  • Received:2020-11-07 Accepted:2021-05-17 Online:2021-11-10 Published:2021-09-18
  • Contact: PENG Jianwei

菌肥减施对结球甘蓝养分吸收及利用的影响

周旋1(), 彭建伟2,*(), 杨嫔玲2, 柴慧清3, 钟雪梅2, 康兴蓉2, 徐章倩2, 张慧茹2   

  1. 1湖南省农业科学院土壤肥料研究所,湖南 长沙 410125
    2湖南农业大学资源环境学院,湖南 长沙 410128
    3湖南沃博特生物科技有限公司,湖南 汉寿 415907
  • 通讯作者: 彭建伟
  • 作者简介:周旋,男,助理研究员,主要从事肥料与养分资源管理研究。E-mail: zhouxuan_123@126.com
  • 基金资助:
    国家重点研发计划课题(2017YFD0200808);湖南省农业科技创新资金项目(2019LS03-3);湖南省自然科学基金青年基金项目(2019JJ50337)

Abstract:

To investigate the nutrient absorption and utilization of vegetable cultivation under functional bacterial compound fertilizer and reducing application, field plot experiments were conducted using the cultivation systems of open field and greenhouse to explore the effects of different fertilization treatments on the accumulation, nutrient absorption and fertilizer utilization efficiency of head cabbage (Brassica oleracea L.var.capitata L.). The results showed that under different planting systems, fertilization treatment had a significant or extremely significant effect on dry matter accumulation and nutrient absorption rate of N, P and K at the late growth stage of head cabbage, and N, P and K accumulation and fertilizer utilization rate at harvest time (P<0.05 or 0.01). Compared with conventional fertilization, the application of functional bacterial compound fertilizer in open field and greenhouse increased the dry matter accumulation of head cabbage at harvesting time by 2.4% to 5.7% and 4.9% to 10.8%, respectively, and increased N utilization efficiency by 10.8 to 35.4 percent (open field) and 9.4 to 57.6 percent (greenhouse), respectively. The 25%-reduction in functional bacterial compound fertilizer increased N uptake of head cabbage by 2.6% to 2.7% (open field) and 4.4% to 10.8% (greenhouse), P uptake by 1.6% to 1.9% (open field) and 7.0% to 8.2% (greenhouse), K uptake by 1.5% to 2.3% (open field) and 0.9% to 2.0% (greenhouse), respectively. The changes of N and K (open field) absorption rate of head cabbage at different growth stages ranked Heading stage - Harvesting time > Rosette stage - Heading stage > Seedling stage - Rosette stage, while Rosette stage - Heading stage > Heading stage - Harvesting time > Seedling stage - Rosette stage for P and K (greenhouse) absorption rate. To a certain extent, the application of functional bacteria compound fertilizer can effectively increase the N, P and K absorption rate and nutrient accumulation of head cabbage under different planting systems, and thus improve fertilizer utilization efficiency of vegetables. Generally, the application of functional bacterial fertilizers with different distribution ratios of nutrients can effectively improve the material accumulation, nutrient absorption and fertilizer utilization of head cabbage under different planting systems, and its effect can be further increased by appropriate reducing application. Thus, the application of bacterial fertilizer should be rationally selected and applied depending on different soil fertility, crop fertilizer requirement characteristics and cultivation management mode.

Key words: functional bacterial compound fertilizer, head cabbage, nutrient absorption, nutrient accumulation, fertilizer utilization efficiency

摘要:

为探讨功能菌型复合肥及化肥减量条件下栽培蔬菜的养分吸收特性及利用特征,在露地和大棚种植体系下,以结球甘蓝为试验材料,采用田间小区试验研究不同养分配比功能菌型复合肥及减量施用对结球甘蓝物质积累、养分吸收及肥料利用率的影响。结果表明,不同种植体系下,施肥处理对结球甘蓝生长后期干物质累积及N、P、K养分吸收速率,收获期N、P、K累积及肥料利用率效应显著。与常规施肥处理相比,露地和大棚种植体系下施用功能菌型复合肥处理结球甘蓝收获期干物质累积量分别增加2.4%~5.7%和4.9%~10.8%,N肥吸收利用率分别增加10.8~35.4和9.4~57.6个百分点。减量25%功能菌型复合肥处理较等量处理结球甘蓝N累积量分别增加2.6%~2.7%(露地)和4.4%~10.8%(大棚),P累积量分别增加1.6%~1.9%(露地)和7.0%~8.2%(大棚),K累积量分别增加1.5%~2.3%(露地)和0.9%~2.0%(大棚)。结球甘蓝各生育阶段对N、K(露地)吸收速率变化表现为结球-收获期>莲座-结球期>苗期-莲座期,而对P、K(大棚)吸收速率变化表现为莲座-结球期>结球-收获期>苗期-莲座期。施用功能菌型复合肥在一定程度上能有效增加不同种植体系中结球甘蓝植株N、P、K养分吸收速率及养分累积,从而提高蔬菜的肥料利用效率。总体而言,在不同种植体系下,施用不同养分配比功能菌肥可有效提高结球甘蓝的物质积累、养分吸收及肥料利用率,且适宜减量施用能进一步增加其作用效果,但应根据土壤肥力特征、作物需肥特性及栽培管理模式合理地进行选择施用。

关键词: 功能菌型复合肥, 结球甘蓝, 养分吸收, 养分累积, 肥料利用率