"3414"配方施肥对魔芋产量、品质及肥料利用率的影响
Effect of'3414'Formula Fertilization on Yield,Quality and Fertilizer Utilization Efficiency of Amorphophallus konjac
覃剑锋 1孟延 2段龙飞 1蔡阳光 1郭邦利 1沈川3
作者信息
- 1. 安康市农业科学研究院,陕西安康 725021
- 2. 渭南市农业科学研究院,陕西渭南 714000
- 3. 安康学院,陕西安康 725000
- 折叠
摘要
探究氮磷钾配施对陕南地区魔芋生长的影响,为魔芋提供科学施肥参考依据.以'安魔128'为试验材料,采用"3414"施肥方案研究不同水平的氮磷钾配施条件下魔芋出苗率、发病率、产量及养分利用率的变化.结果表明,随着氮、磷、钾施用量的增加,氮肥、磷肥、钾肥的偏生产力均呈现逐渐降低趋势.且肥料农学效率和偏生产力均表现为P＞K＞N.综合各项指标来看,N1P1K2处理,即127.5kg/hm2N+54 kg/hm2 P2O5+135 kg/hm2 K2O的施肥配比较为理想,最为适合在当地推广.
Abstract
This study investigates the effects of combined application of nitrogen,phosphorus,and potassium on the growth of Amorphophallus konjac in southern Shaanxi region,aiming to provide a scientific fertilization reference for A.konjac.Using the variety'Anmo 128'as the experimental material,the'3414'fertilization scheme was employed to examine variations in emergence rate,incidence rate,yield,and nutrient utilization efficiency of A.konjac under different levels of nitrogen,phosphorus,and potassium combined application.The experimental results indicated that with increasing application rates of nitrogen,phosphorus,and potassium,the marginal productivities of nitrogen fertilizer,phosphorus fertilizer,and potassium fertilizer gradually decreased.Additionally,both fertilizer agronomic efficiency and marginal productivity followed the order:phosphorus(P)＞potassium(K)＞nitrogen(N).Considering comprehensive indicators,the fertilization ratio of N1P1K2(127.5 kg/hm2 N+54 kg/hm2 P2O5+135 kg/hm2 K2O)demonstrates the most desirable outcomes and is most suitable for local promotion.
关键词
魔芋/氮磷钾配施/产量/养分/肥料利用率Key words
Amorphophallus konjac/nitrogen,phosphorus,and potassium combined application/yield/nutrients/fertilizer utilization efficiency引用本文复制引用
基金项目
国家重点研发计划(2022YFD1602008)
陕西省科技厅区域创新能力引导计划(2022QFY09-04)
陕西省科技厅自然科学一般项目(2023-JC-QN-0203)
出版年
2024
国家科技期刊平台
NSTL
万方数据