中国马铃薯2026，Vol.40Issue(3)：212-219,8.DOI:10.19918/j.cnki.1672-3635.2026.03.008
水肥耦合下有机肥替代部分化肥对马铃薯生长及产量的影响
Effects of Partial Substitution of Chemical Fertilizer with Organic Manure on Potato Growth and Yield Under Water-fertilizer Coupling
摘要
Abstract
A two-factor randomized complete block field experiment was conducted in Shandan County,Gansu Province in order to address the issues of low resource utilization efficiency and environmental problems associated with excessive water and fertilizer application and identify the optimal water-fertilizer coupling model for water conservation and fertilizer reduction in potato cultivation in the arid and semi-arid regions of Gansu Province.The effects of three irrigation levels(W1∶1 800 m3/ha,W2∶2 100 m3/ha,W3∶2 400 m3/ha)and four organic fertilizer substitution ratios(F1∶0％,F2∶20％,F3∶30％,F4∶40％)on potato growth period,growth,yield,and water and fertilizer use efficiency were studied.The combination of high organic fertilizer substitution ratio and high irrigation level obviously delayed the potato growth stages,with the W3F4 treatment achieving the longest growth period(130 d).Both irrigation amount and fertilizer treatment had significant effects on plant height and stem diameter,with the W1F4 and W3F4 treatments exhibiting the optimal growth indicators.Irrigation amount and fertilizer treatment had highly significant effects on yield,and their interaction effect was also significant.The W1F4 treatment achieved the highest yield(54 030 kg/ha),which was 28.9％higher than that of the conventional chemical fertilizer treatment.Meanwhile,the W1F4 treatment also achieved the maximum irrigation water use efficiency(IWUE)and partial factor productivity(PFP)of fertilizer.Therefore,the combination of irrigation amount of 1 800 m3/ha and 40％organic fertilizer substitution ratio(W1F4)was identified as the optimal water-fertilizer coupling model under this experiment.It could significantly improve water and fertilizer use efficiency while maintaining high yield,providing a technical reference for green and efficient potato production in Gansu Province.关键词
马铃薯/水肥耦合/有机肥替代/产量/灌溉水分利用效率/肥料偏生产力Key words
potato/water-fertilizer coupling/organic fertilizer substitution/yield/irrigation water use efficiency/partial factor productivity分类
农业科技引用本文复制引用
孔乐辉,李世成,张永祥,韩儆仁,李亚杰,边彩燕..水肥耦合下有机肥替代部分化肥对马铃薯生长及产量的影响[J].中国马铃薯,2026,40(3):212-219,8.基金项目
乡村振兴专项(25CXNA046) （25CXNA046）
甘肃省重点人才项目(2026RCXM092) （2026RCXM092）
甘肃省自然科学基金(26JRRJ003). （26JRRJ003）
