寒旱农业科学2025，Vol.4Issue(3)：272-277,6.DOI:10.3969/j.issn.2097-2172.2025.03.012
生物炭基肥对马铃薯产量和品质的影响
Effects of Biochar-based Fertilizer on Potato Yield and Quality
摘要
Abstract
To investigate the best application amount of biochar-based fertilizer for potatoes in Lintao County,Ganzhou District and Suzhou District,and to provide basis for reasonable fertilization management measures for local potato production in this study,the potato variety Long 15 was used as material,and four biochar-based fertilizers with different gradients for potato were set up,including 300,600,900 and 1 200 kg/ha,and nine treatments with the same amount of traditional N,P and K fertilizers and no fertilization.The changes of potato plant traits,yield and nutrient uptake rate under different fertilization treatments were studied and compared,and field experiments were conducted in the experimental area for two consecutive years.Results showed that when the application rate of biochar-based fertilizer was 900 kg/ha,the potato yield was the highest which was 12.0%higher than that under traditional fertilization with equal nutrients(urea 289.8 kg/ha,superphosphate 450.0 kg/ha,potassium chloride 138.6 kg/ha).Compared with traditional fertilization,number of tubers,tuber weight,number of medium and large tubers,weight of medium and large tubers,and the proportion of medium and large tubers increased by 43.14%,8.27%,13.04%,9.34%,and 18.40%,respectively,while nutrient uptake efficiency improved by 6.8 percentage points.2 consecutive years of field experiment confirmed that at 900 kg/ha,the biochar-based fertilizer treatment significantly increased potato yield by 20.6%,16.4%,and 12.9%compared with traditional full chemical fertilization in Lintao County,Ganzhou District,and Suzhou District,respectively.It also significantly improved potato dry matter content,protein content,crude starch content,and reducing sugar content.In conclusion,the optimal application rate of potato-specific biochar-based fertilizer is 900 kg/ha,which enhances yield and efficiency.It is recommended as the fertilization rate for potato cultivation in Lintao County,Ganzhou District,and Suzhou District.关键词
马铃薯/产量/品质/生物炭基肥Key words
Potato/Yield/Quality/Biochar-based fertilizer分类
农业科技引用本文复制引用
赵欣楠,杨君林,谢丽华,张旭临,冯守疆..生物炭基肥对马铃薯产量和品质的影响[J].寒旱农业科学,2025,4(3):272-277,6.基金项目
甘肃省科技厅民生计划项目(21CX6NA123) （21CX6NA123）
甘肃省农业科学院院列重点研发项目(2022GAAS46). （2022GAAS46）
