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园艺学报 ›› 2025, Vol. 52 ›› Issue (4): 1007-1019.doi: 10.16420/j.issn.0513-353x.2023-1022

• 栽培·生理生化 • 上一篇    下一篇

减施化肥配施有机肥对马铃薯产量及养分利用的影响

林  茜1,邓振鹏1,阳新月1,周克友2,易小平1,王季春1,*(wjchun@swu.edu.cn)   

  1. 1西南大学农学与生物科技学院,薯类生物学与遗传育种重庆市重点实验室,重庆 400715 2巫溪县种植业发展服务中心,重庆 405800
  • 收稿日期:2024-11-19 修回日期:2025-01-17 出版日期:2025-04-25 发布日期:2025-04-25
  • 通讯作者: *E-mail:wjchun@swu.edu.cn
  • 基金资助:
    国家重点研发计划课题项目(2018YFD0200808)

Effects of Reducing Chemical Fertilizer Combined with Organic Fertilizer on Potato Yield and Nutrient Utilization

LIN Xi1,DENG Zhenpeng1,YANG Xinyue1,ZHOU Keyou2,YI Xiaoping1,and WANG Jichun1,*(wjchun@swu.edu.cn)   

  1. 1Chongqing Key Laboratory of Potato Biology and Genetic Breeding,College of Agriculture and Biotechnology,Southwest University,Chongqing 400715,China 2Wuxi County Planting Industry Development Service Center,Chongqing 405800,China
  • Received:2024-11-19 Revised:2025-01-17 Published:2025-04-25 Online:2025-04-25

摘要: 于2020和2021年,以早熟马铃薯‘早大白’为材料,采用随机区组试验设计,设置不施肥对照(CK)、高量化肥(T1)、与高量化肥总养分一致的中量化肥 + 有机肥(T2)、中等化肥(当地农户常规施肥,T3)、与中量化肥总养分一致的低量化肥 + 有机肥(T4)、低化肥(T5)和与低量化肥总养分一致的单施有机肥(T6)共7个处理,对产量、品质以及氮磷钾素利用效率等进行研究。结果表明,减施化肥配施有机肥处理能显著提高马铃薯块茎的氮磷钾养分利用效率、土壤有机质含量以及肥料的产量贡献率,其中T2处理表现最佳。化肥用量递减会降低商品薯率与单株结薯数,影响马铃薯产量,而有机肥替代配施中量化肥能够减缓化肥递减对产量造成的负面影响,提高商品薯率和单株结薯数,并提高块茎产量,T2产量最高,为18 810.35 kg · hm-2。总体上化肥递减干物质、淀粉、维生素C和可溶性蛋白含量也会递减,而有机肥的替代配施能改善品质下降,化肥配施有机肥的处理相比单施化肥处理更能增加块茎的干物质、淀粉、维生素C和可溶性蛋白含量,T2的品质最优。综上,施用有机肥促进了养分利用从而提高马铃薯产量和品质,同等生态条件下,每公顷施用750 kg复合肥配施3 375 kg商品有机肥是更有助于实现高产量、高品质、高肥料利用率的施肥方式。

关键词: 马铃薯, 化肥施用量, 有机肥替代, 产量, 品质, 养分利用

Abstract: In 2020 and 2021,a randomized block trial design was adopted,in which no fertilization control(CK),high-volume chemical fertilizer(T1),medium-volume chemical fertilizer + organic fertilizer(T2),medium-volume chemical fertilizer(conventional fertilization by local farmers,T3),low-volume chemical fertilizer + organic fertilizer(T4),low-volume chemical fertilizer(T5)and low-volume chemical fertilizer(T5)were adopted. Studied the changes and differences in potato yield,quality and nitrogen,phosphorus and potassium utilization efficiency. The results showed that the treatment of reducing chemical fertilizer combined with organic fertilizer could significantly improved the utilization efficiency of nitrogen,phosphorus and potassium nutrients in potato tubers,and significantly improved the soil organic matter content and the yield contribution rate of fertilizers,among which T2 treatment was the best. Declining chemical fertilizer will reduce the rate of commercial potato and the number of tubers per plant,which will affect the potato yield. However,organic fertilizer instead of moderate chemical fertilizer can alleviate the negative impact of declining chemical fertilizer on the yield,increase the rate of commercial potato and the number of tubers per plant,and increase the tuber yield. The highest yield of T2 was 18 810.35 kg · hm-2. At the same time,the content of dry matter,starch,vitamin C and starch will also decrease with the decrease of chemical fertilizer,and the replacement of organic fertilizer can improve the quality decline. The treatment of chemical fertilizer combined with organic fertilizer can increase the content of dry matter,starch,vitamin C and soluble proteins of tuber more than that of single chemical fertilizer treatment,and the quality of T2 was the best. To sum up,the application of organic fertilizer can promote the utilization of nutrients,improve the yield and quality of potatoes.To sum up,the application of organic fertilizer promotes the utilization of nutrients,thus improving the yield and quality of potatoes. Under the same ecological conditions,the application of 750 kg compound fertilizer combined with 3 375 kg commercial organic fertilizer per hectare is more conducive to achieving high yield,high quality and high fertilizer utilization rate.

Key words: potato, fertilizer application rate, organic fertilizer substitution, yield, quality, nutrient utilization

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