Supplemental Application of Potassium Acetate Increased Yield of Mesa Russet Potatoes in Sandy Loam Soil with High Potassium Levels

IF 1.5 4区农林科学 Q3 AGRONOMY

American Journal of Potato Research Pub Date : 2025-11-28 DOI:10.1007/s12230-025-10022-w

Salah M. Abdelsalam, Samuel YC Essah, Jessica G. Davis

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引用次数: 0

Abstract

Potato responses to potassium (K) fertilizer have sometimes been reported in high K soils. This study was designed to investigate the effects of supplemental application of K acetate, a new potassium fertilizer source, to KCl, on the production of Mesa Russet potatoes at the San Luis Valley of Colorado, USA. Treatments included (1) the control treatment where no K fertilizer was applied, (2) application of KCl pre-plant (KCl PP), (3) application of K acetate pre-plant (KAc PP), (4) foliar application of K acetate (KAc F), (5) K acetate pre-plant and foliar (KAc PP + F), and (6) foliar application of K acetate twice (KAc 2 F). KAc PP and KAc F treatments increased total tuber yield and marketable tuber yield (> 114 g) compared to KCl PP treatment in both years. Measurements of tuber quality (tuber dry weight, specific gravity, cracks, knobs, and hollow heart) and plant growth (tuber bulking, aboveground biomass, stem number, and tuber number) showed no consistent treatment impacts. Supplemental application of K acetate (pre-plant or foliar) improved tuber yield of Mesa Russet potatoes; however, the mechanism through which K acetate achieved these yield gains remains unclear and warrants additional research.

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在高钾砂壤土上补施醋酸钾提高台地赤褐色马铃薯产量

在高钾土壤中，马铃薯对钾肥的反应有时也有报道。本试验旨在研究在美国科罗拉多州圣路易斯市的梅萨赤褐色马铃薯生产中，在KCl基础上补施醋酸钾这一新型钾肥源对马铃薯产量的影响。处理包括(1)不施钾肥的对照处理，(2)KCl预施（KCl PP）， (3) KAc预施（KAc PP），(4)叶面施用乙酸钾（KAc F），(5)乙酸钾预施和叶面（KAc PP + F），(6)叶面两次施用乙酸钾（KAc 2f）。在这两年中，与KCl PP处理相比，KAc PP和KAc F处理提高了块茎总产量和可销售块茎产量（114克）。块茎质量（块茎干重、比重、裂缝、疙瘩和空心心）和植株生长（块茎体积、地上生物量、茎数和块茎数）的测量结果显示，处理对块茎质量的影响不一致。苗前或叶面补施乙酸钾可提高台地赤褐色马铃薯块茎产量；然而，醋酸钾实现这些产量增加的机制尚不清楚，需要进一步研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

American Journal of Potato Research 农林科学-农艺学

CiteScore

3.40

自引率

6.70%

发文量

审稿时长

18-36 weeks

期刊介绍： The American Journal of Potato Research (AJPR), the journal of the Potato Association of America (PAA), publishes reports of basic and applied research on the potato, Solanum spp. It presents authoritative coverage of new scientific developments in potato science, including biotechnology, breeding and genetics, crop management, disease and pest research, economics and marketing, nutrition, physiology, and post-harvest handling and quality. Recognized internationally by contributors and readership, it promotes the exchange of information on all aspects of this fast-evolving global industry.