灌溉排水学报2025，Vol.44Issue(4)：36-46,11.DOI:10.13522/j.cnki.ggps.2024246
不同水肥模式对洱海流域冬季马铃薯产量和品质的影响
Effect of irrigation and fertilization on yield and tuber quality of winter potato in Erhai Lake basin
摘要
Abstract
[Objective]The growth of winter potatoes in Yunnan Province requires both irrigation and fertilization.This study examines the effects of irrigation amount and base-to-topdressing fertilization ratio on the growth,yield,and tuber quality of potatoes grown under full mulch conditions in the Erhai Lake basin.[Method]A field experiment was conducted with two irrigation treatments,by maintaining the soil water content in the root zone at 80%-100%of field capacity(W1)and 64%-80%of field capacity(W2).Each irrigation treatment had two fertilizations with the fertilizers divided between base fertilization and topdressing at ratios of 1∶1(T1)and 2∶1(T2).The control treatment did not receive irrigation and fertilization.During the experiment,plant growth traits,yield,and tuber quality were measured.[Result]During the tuber expansion stage,irrigation significantly influenced root length,leaf area index(LAI),and dry matter accumulation(p＜0.05).The base-to-topdressing fertilization ratio also had a significant effect on root length and LAI(p＜0.05).The T1W1 combination resulted in the highest seedling emergence rate,LAI,yield,large tuber mass per ridge,and dry matter accumulation,producing a tuber yield of 46 657.70 kg/hm2,7.59%to 22.15%higher than other treatments.The T2W1 combination yielded 43 367.20 kg/hm²,ranking second.Both irrigation and the base-to-topdressing fertilization ratio significantly affected tuber yield(p＜0.05).The T1W1 combination also resulted in the highest starch content(149.87 mg/g fresh mass)and the lowest reducing sugar content(425.39 μg/g fresh mass).Tuber yield was positively correlated with both quality and the proportion of large tubers in the planting rows.[Conclusion]Considering growth,yield,and tuber quality,the T1W1 combination is optimal for winter potato production in the study area and similar regions with comparable soil and environmental conditions.关键词
灌水量/肥料基追比/马铃薯/产量/品质Key words
irrigation quantity/fertilizer base ratio/potato/yield/quality分类
农业工程引用本文复制引用
陈志影,张刘东,陈丽红,杨文杰,胡毅..不同水肥模式对洱海流域冬季马铃薯产量和品质的影响[J].灌溉排水学报,2025,44(4):36-46,11.基金项目
云南省科技厅重大科技专项(202202AE090034) （202202AE090034）
云南省农业联合专项(202301BD070001-099) （202301BD070001-099）
云南省高层次人才培养支持计划项目(YNWR-QNBJ-2020-168) （YNWR-QNBJ-2020-168）
