2-Chloro-6-(trichloromethyl) pyridine stabilized early japonica rice yield by increasing nitrogen uptake and utilization under reduced nitrogen rates

IF 3.5 2区 农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY
{"title":"2-Chloro-6-(trichloromethyl) pyridine stabilized early japonica rice yield by increasing nitrogen uptake and utilization under reduced nitrogen rates","authors":"","doi":"10.1016/j.aoas.2024.07.002","DOIUrl":null,"url":null,"abstract":"<div><p>The influence of 2-chloro-6-(trichloromethyl) pyridine (CP) on growth, nitrogen (N) absorption and utilization, and yield of rice were examined to offer a technical reference for enhancing rice yield and efficient production under nitrogen limitation in cold regions. In this experiment, Japonica rice was planted with six treatments: 115 kg·ha<sup>−1</sup> N (local conventional application, N115), application of N reduced by 20 % (N92), N reduced by 20 % + 900 g ha<sup>−1</sup> CP (N92 + CP), N reduced by 30 % (N80.5), N reduced by 30 % + 900 g ha<sup>−1</sup> CP (N80.5 + CP), and no-N fertilizer (N0) were used to study the effects of CP on factors relating to yield. In 2022, compared with N92, N92 + CP significantly increased soil available N content (SAN), N uptake (NU), and N fertilizer utilization efficiency (NUE). These factors contributed to an increase in the leaf area index of all leaves at jointing and the leaf area index of the top three leaves at heading. In 2021, the tiller number per hill, dry matter accumulation (DMA) from jointing to heading, DMA from heading to maturity (DMAH), crop growth rate (CGR) from jointing to heading, and CGR from heading to maturity (CGRH) were increased and thus contributed to an increase in total yield. Compared with N80.5, N80.5 + CP significantly increased tiller number per hill, SAN, and NUE in 2022, while the DMAH, CGRH, and yield were increased in 2021 and 2022. This study indicates that CP can maintain rice yield by increasing NU and NUE even under reduced N rates.</p></div>","PeriodicalId":54198,"journal":{"name":"Annals of Agricultural Science","volume":null,"pages":null},"PeriodicalIF":3.5000,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S057017832400006X/pdfft?md5=76b5cd01cab3d3d5f5a66c659b7b9843&pid=1-s2.0-S057017832400006X-main.pdf","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Annals of Agricultural Science","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S057017832400006X","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

The influence of 2-chloro-6-(trichloromethyl) pyridine (CP) on growth, nitrogen (N) absorption and utilization, and yield of rice were examined to offer a technical reference for enhancing rice yield and efficient production under nitrogen limitation in cold regions. In this experiment, Japonica rice was planted with six treatments: 115 kg·ha−1 N (local conventional application, N115), application of N reduced by 20 % (N92), N reduced by 20 % + 900 g ha−1 CP (N92 + CP), N reduced by 30 % (N80.5), N reduced by 30 % + 900 g ha−1 CP (N80.5 + CP), and no-N fertilizer (N0) were used to study the effects of CP on factors relating to yield. In 2022, compared with N92, N92 + CP significantly increased soil available N content (SAN), N uptake (NU), and N fertilizer utilization efficiency (NUE). These factors contributed to an increase in the leaf area index of all leaves at jointing and the leaf area index of the top three leaves at heading. In 2021, the tiller number per hill, dry matter accumulation (DMA) from jointing to heading, DMA from heading to maturity (DMAH), crop growth rate (CGR) from jointing to heading, and CGR from heading to maturity (CGRH) were increased and thus contributed to an increase in total yield. Compared with N80.5, N80.5 + CP significantly increased tiller number per hill, SAN, and NUE in 2022, while the DMAH, CGRH, and yield were increased in 2021 and 2022. This study indicates that CP can maintain rice yield by increasing NU and NUE even under reduced N rates.

2-氯-6-(三氯甲基)吡啶通过提高氮吸收率和氮利用率稳定早粳稻产量
研究了 2-氯-6-(三氯甲基)吡啶(CP)对水稻生长、氮素吸收利用和产量的影响,为寒冷地区氮素限制条件下提高水稻产量和高效生产提供技术参考。本试验采用六种处理种植粳稻:分别采用 115 kg-ha-1 N(当地常规施肥,N115)、减少 20% N 的施肥量(N92)、减少 20% N + 900 g ha-1 CP(N92 + CP)、减少 30% N 的施肥量(N80.5)、减少 30% N + 900 g ha-1 CP(N80.5 + CP)以及不施氮肥(N0)等六种处理,研究 CP 对产量相关因素的影响。2022 年,与 N92 相比,N92 + CP 显著提高了土壤可利用氮含量(SAN)、氮吸收量(NU)和氮肥利用效率(NUE)。这些因素都有助于提高抽穗时所有叶片的叶面积指数和打顶时前三片叶片的叶面积指数。2021 年,每丘分蘖数、从抽穗到打顶的干物质积累(DMA)、从打顶到成熟的干物质积累(DMAH)、从抽穗到打顶的作物生长率(CGR)和从打顶到成熟的作物生长率(CGRH)均有所增加,从而促进了总产量的增加。与 N80.5 相比,N80.5+CP 在 2022 年显著增加了每丘分蘖数、SAN 和 NUE,而在 2021 年和 2022 年增加了 DMAH、CGRH 和产量。这项研究表明,即使在减少氮肥用量的情况下,氯化石蜡也能通过增加NU和NUE来保持水稻产量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Annals of Agricultural Science
Annals of Agricultural Science AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
12.60
自引率
0.00%
发文量
18
审稿时长
33 days
期刊介绍: Annals of Agricultural Sciences (AOAS) is the official journal of Faculty of Agriculture, Ain Shams University. AOAS is an open access peer-reviewed journal publishing original research articles and review articles on experimental and modelling research at laboratory, field, farm, landscape, and industrial levels. AOAS aims to maximize the quality of the agricultural sector across the globe with emphasis on the Arabian countries by focusing on publishing the high-quality applicable researches, in addition to the new methods and frontiers leading to maximizing the quality and quantity of both plant and animal yield and final products.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信