欢迎访问《生态学杂志》官方网站,今天是 分享到:

生态学杂志 ›› 2024, Vol. 43 ›› Issue (3): 665-674.doi: 10.13292/j.1000-4890.202403.044

• 研究报告 • 上一篇    下一篇

化肥减施下生物有机肥对连作甜菜耕层土壤质量及产量的影响

田露1,苏文斌1,郭晓霞1*,黄春燕1,菅彩媛1,张鹏2,李智1,韩康1
  

  1. 1内蒙古自治区农牧业科学院, 呼和浩特 010031; 2乌兰察布市农林科学研究所, 内蒙古乌兰察布 012000)

  • 出版日期:2024-03-10 发布日期:2024-03-06

Effect of bioorganic fertilizer on soil quality and yield of continuous cropping sugar beet under reduced chemical fertilizer application.

TIAN Lu1, SU Wenbin1, GUO Xiaoxia1*, HUANG Chunyan1, JIAN Caiyuan1, ZHANG Peng2, LI Zhi1, HAN Kang1

#br#
  

  1. (1Inner Mongolia Academy of Agricultural & Animal Husbandry Science, Hohhot 010031, China; 2Ulanqab Institute of Agriculture and Forestry, Ulanqub 012000, Inner Mongolia, China).

  • Online:2024-03-10 Published:2024-03-06

摘要: 以常规施肥(化肥施用量900 kg·hm-2)为对照(CK),以化肥减施300 kg·hm-2为基础,设置生物有机肥处理(BOF1:1500 kg·hm-2、BOF2:3000 kg·hm-2、BOF3:4500 kg·hm-2、BOF4:6000 kg·hm-2、BOF5:7500 kg·hm-2),分析耕层土壤结构、养分特征、生物学特性和甜菜产量的变化,以期筛选生物有机肥在连作甜菜中的最佳施用量。结果表明:与CK相比,处理BOF1对土壤质量影响不显著;处理BOF2仅表现显著提高土壤有机质和速效钾含量;处理BOF3土壤容重显著降低5.11%,土壤总孔隙度、有机质、碱解氮、速效磷和速效钾含量分别显著增加5.92%、14.07%、18.35%、3.59%和14.61%;处理BOF4和BOF5对土壤质量和甜菜产量的影响基本一致,土壤容重显著降低9.33%和9.65%,土壤孔隙度、有机质、碱解氮、速效磷、速效钾含量分别显著增加10.82%和11.19%、27.22%和27.78%、31.62%和35.42%、44.10%和54.87%、22.93%和30.03%,土壤微生物生物量碳、氮显著提高22.78%~44.19%和23.81%~60.17%、2.45%~37.64%和16.74%~43.56%,土壤蔗糖酶、脲酶、碱性磷酸酶活性显著提高26.03%~38.61%和29.27%~44.71%、42.72%~63.20%和51.59%~69.89%、3.59%~33.44%和29.60%~38.62%,且两者在各指标间均差异不显著。与CK相比,处理BOF2、BOF3、BOF4和BOF5甜菜产量分别显著提高5.69%、11.82%、22.29%和11.95%,且处理BOF4产量显著高于处理BOF2、BOF3和BOF5,处理BOF4实现了连作甜菜种植效益增加12.79%。综上,化肥减施300 kg·hm-2的基础上配施6000 kg·hm-2的生物有机肥能够实现连作甜菜土壤质量、产量和经济效益的协同提升。


关键词: 化肥减量, 生物有机肥, 连作甜菜, 土壤质量, 产量,  经济效益

Abstract: We explored the effects of different fertilization treatments on soil structure, nutrient characteristics, biological characteristics and yield of continuous cropping sugar beet, with the aim to screen out the best application amount of bioorganic fertilizer. With the conventional fertilization (900 kg·hm-2 chemical fertilizer) as the control (CK), we set up bioorganic fertilizer treatments (BOF1: 1500 kg·hm-2; BOF2: 3000 kg·hm-2; BOF3: 4500 kg·hm-2; BOF4: 6000 kg·hm-2; BOF5: 7500 kg·hm-2) on the basis of reducing 300 kg·hm-2 chemical fertilizer. The results showed that the effects of BOF1 on soil quality indices were not significant. The BOF2 significantly increased the content of soil organic matter and available potassium. The BOF3 significantly reduced soil bulk density by 5.11%, significantly increased soil total porosity by 5.92%, soil organic matter by 14.07%, soil alkaline nitrogen by 18.35%, soil available phosphorus by 3.59%, and soil available potassium by 14.61%. Treatments BOF4 and BOF5 had similar effects on soil quality and beet yield. BOF4 and BOF5 significantly reduced soil bulk density by 9.33% and 9.65%, significantly increased soil porosity by 10.82% and 11.19%, soil organic matter by 27.22% and 27.78%, soil alkaline nitrogen by 31.62% and 35.42%, soil available phosphorus by 44.10% and 54.87%, soil available potassium by 22.93% and 30.03%, respectively. Both treatments significantly increased soil microbial biomass carbon by 22.78%-44.19% and 23.81%-60.17%, microbial biomass nitrogen by 2.45%-37.64% and 16.74%-43.56%, invertase activity by 26.03%-38.61% and 29.27%-44.71%, urease activity by 42.72%-63.20% and 51.59%-69.89%, alkaline phosphatase activity by 3.59%-33.44% and 29.60%-38.62%. There were no significant differences in each soil quality index between these two treatments. Compared with CK, the yield of BOF2, BOF3, BOF4 and BOF5 increased by 5.69%, 11.82%, 22.29%, and 11.95%, respectively. The beet yield of treatment BOF4 was significantly higher than that of BOF2, BOF3, and BOF5. Treatment BOF4 increased the economic benefits of continuous cropping sugar beet by 12.79%. In all, the application of 6000 kg·hm-2 bioorganic fertilizer can achieve the synergetic improvement of soil quality, yield and economic benefits of continuous cropping sugar beet.


Key words: reduction of chemical fertilizer, bioorganic fertilizer, continuous cropping sugar beet, soil quality, yield, economic benefit