Integrating Seeding Rates and Pesticide Programs for Managing Sclerotinia Stem Rot in Glycine max with Nitrogen Fertilizer Applications

IF 1.7 Q2 PLANT SCIENCES

Plant Health Progress Pub Date : 2023-01-18 DOI:10.1094/php-10-22-0102-rs

R. Webster, B. Mueller, M. Chilvers, A. Byrne, J. F. Boyse, William W. Widdicombe, D. Mueller, S. N. Wiggs, Y. Kandel, D. Telenko, J. Ravellette, S. Shim, Damon L. Smith

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引用次数: 0

Abstract

Soybean production in the Upper Midwest region of the United States is consistently limited by the disease Sclerotinia stem rot (SSR). To control SSR, multiple management practices have been studied and implemented to reduce SSR development and preserve yield. This study examined the effects of integrating soybean seeding rates and pesticide programs under nitrogen fertilizer applications in the form of urea (46-0-0) that may occur due to management for other crops, such as corn. From ten site-years between 2020 and 2021, low seeding rates decreased SSR development while also decreasing yields and partial profits. The effect of pesticide applications on SSR development was influenced by both seeding rates and nitrogen applications. Consistently, applications of the fungicide, Endura, reduced SSR to the lowest levels, while also maintaining the highest yields and partial profits. Soybeans grown with nitrogen applications experienced increased SSR development, and decreased yields and partial profits. Overall, this work suggests that using low seeding rates and fungicides improves the management of SSR, and using nitrogen fertilizer applications can result in greater SSR development and decreased economic returns, especially in fields with a history of SSR.

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综合施氮处理大豆菌核病的播种率和农药方案

美国上中西部地区的大豆生产一直受到菌核病（SSR）的限制。为了控制SSR，研究并实施了多种管理实践，以减少SSR的发展并保持产量。这项研究考察了在尿素（46-0-0）形式的氮肥施用下，将大豆播种率和农药计划相结合的效果，这种氮肥施用可能是由于对其他作物（如玉米）的管理而发生的。从2020年到2021年的十个站点年，低播种率降低了SSR的发育，同时也降低了产量和部分利润。施用农药对SSR发育的影响受播种量和施氮量的影响。杀菌剂Endura的应用一直将SSR降低到最低水平，同时也保持了最高的产量和部分利润。施用氮肥种植的大豆SSR发育增加，产量和部分利润下降。总的来说，这项工作表明，使用低播种率和杀菌剂可以改善SSR的管理，使用氮肥可以导致SSR的更大发展和经济回报的降低，尤其是在有SSR历史的田地里。

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

Plant Health Progress Agricultural and Biological Sciences-Horticulture

CiteScore

3.00

自引率

13.00%

发文量

期刊介绍： Plant Health Progress, a member journal of the Plant Management Network, is a multidisciplinary science-based journal covering all aspects of applied plant health management in agriculture and horticulture. Both peer-reviewed and fully citable, the journal is a credible online-only publication. Plant Health Progress is a not-for-profit collaborative endeavor of the plant health community at large, serving practitioners worldwide. Its primary goal is to provide a comprehensive one-stop Internet resource for plant health information.