Effect of 2, 4-D sodium salt on weeds, growth and yields in rabi maize (Zea mays L.)

Q4 Agricultural and Biological Sciences

Indian Journal of Agronomy Pub Date : 2024-02-09 DOI:10.59797/ija.v68i4.5466

SHIVAM KUMAR, PRATIK SANODIYA, A K JHA, M.P. SAHU, BADAL VERMA

{"title":"Effect of 2, 4-D sodium salt on weeds, growth and yields in rabi maize (Zea mays L.)","authors":"SHIVAM KUMAR, PRATIK SANODIYA, A K JHA, M.P. SAHU, BADAL VERMA","doi":"10.59797/ija.v68i4.5466","DOIUrl":null,"url":null,"abstract":"\nA field investigation was conducted during winter (rabi) season of 2021 at Agricultural Research Farm of Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, to study the efficacy of doses of 2, 4-D sodium salt 80% WP on weeds, productivity and economics of rabi maize (Zea mays L.). Application of 2, 4- D sodium salt 80% WP @ 1,250 g/ha at 25 days after sowing (DAS) resulted in to lesser weed density and weed dry weight of Physalis minima Roem. & Schult, Chenopodium album (L.), Melilotus indicus (L.) and Cichorium intybus (L.) as compared to 2, 4-D sodium salt 80% WP @ 1,000 g/ha and 2, 4-D sodium salt 80% WP @ 750 g/ha at 60 DAS, with higher weed control efficiency (77.3 %) and lesser weed index (34.9 %). At 60 DAS, 2, 4-D sodium salt 80% WP (applied @1250 g/ha at 25 DAS) produced higher plant height, number of leaves, chlorophyll content, leaf area index and plant dry-matter over other treatments except weed free and two hand weeding at 20 and 40 DAS. Application of 2, 4-D sodium salt 80% WP @ 1,250 g/ha at 25 DAS recorded higher number of cobs, number of kernels, number of kernels/row and seed index as compared to 2, 4-D sodium salt 80% WP @ 1,000 g/ha, and 2, 4-D sodium salt 80% WP @ 750 g/ha. Higher kernel (3.7 t/ha) and stover yield (4.7 t/ha) of maize was recorded due to application of 2, 4-D sodium salt 80% WP @ 1,250 g/ha at 25 DAS with higher harvest index (44.5%) and monetary returns (62.5 × 103 `/ha) as compared to 2, 4-D sodium salt 80% WP @ 1,000 g/ha, and 2, 4-D sodium salt 80% WP @ 750 g/ha.\n","PeriodicalId":35528,"journal":{"name":"Indian Journal of Agronomy","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Indian Journal of Agronomy","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.59797/ija.v68i4.5466","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}

引用次数: 0

Abstract

A field investigation was conducted during winter (rabi) season of 2021 at Agricultural Research Farm of Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, to study the efficacy of doses of 2, 4-D sodium salt 80% WP on weeds, productivity and economics of rabi maize (Zea mays L.). Application of 2, 4- D sodium salt 80% WP @ 1,250 g/ha at 25 days after sowing (DAS) resulted in to lesser weed density and weed dry weight of Physalis minima Roem. & Schult, Chenopodium album (L.), Melilotus indicus (L.) and Cichorium intybus (L.) as compared to 2, 4-D sodium salt 80% WP @ 1,000 g/ha and 2, 4-D sodium salt 80% WP @ 750 g/ha at 60 DAS, with higher weed control efficiency (77.3 %) and lesser weed index (34.9 %). At 60 DAS, 2, 4-D sodium salt 80% WP (applied @1250 g/ha at 25 DAS) produced higher plant height, number of leaves, chlorophyll content, leaf area index and plant dry-matter over other treatments except weed free and two hand weeding at 20 and 40 DAS. Application of 2, 4-D sodium salt 80% WP @ 1,250 g/ha at 25 DAS recorded higher number of cobs, number of kernels, number of kernels/row and seed index as compared to 2, 4-D sodium salt 80% WP @ 1,000 g/ha, and 2, 4-D sodium salt 80% WP @ 750 g/ha. Higher kernel (3.7 t/ha) and stover yield (4.7 t/ha) of maize was recorded due to application of 2, 4-D sodium salt 80% WP @ 1,250 g/ha at 25 DAS with higher harvest index (44.5%) and monetary returns (62.5 × 103 `/ha) as compared to 2, 4-D sodium salt 80% WP @ 1,000 g/ha, and 2, 4-D sodium salt 80% WP @ 750 g/ha.

查看原文本刊更多论文

2, 4-D 钠盐对玉米（Zea mays L.）杂草、生长和产量的影响

北方邦瓦拉纳西的巴纳拉斯印度教大学农业科学研究所的农业研究农场在 2021 年冬季（腊月）进行了一项田间调查，研究 2，4-D 钠盐 80% WP 剂量对腊月玉米（Zea mays L.）杂草、产量和经济效益的影响。在播种后 25 天（DAS）施用 80% 的 2，4-D 可湿性粉剂钠盐 @ 1,250 克/公顷，可降低杂草密度和杂草干重（Physalis minima Roem.与 2, 4-D 钠盐 80% WP @ 1,000 g/ha 和 2, 4-D 钠盐 80% WP @ 750 g/ha 相比，在 60 DAS 期，2, 4-D 钠盐 80% WP @ 1,000 g/ha 和 2, 4-D 钠盐 80% WP @ 750 g/ha 的除草效率更高（77.3 %），杂草指数更低（34.9 %）。在 60 DAS 期，2，4-D 钠盐 80% WP（在 25 DAS 期施用 @1250 克/公顷）与其他处理相比，除在 20 DAS 期和 40 DAS 期无杂草和两次人工除草外，在株高、叶片数、叶绿素含量、叶面积指数和植株干物质方面均有提高。在 25 DAS 期施用 80% WP @ 1,250 g/ha 的 2, 4-D 钠盐，与 80% WP @ 1,000 g/ha 和 80% WP @ 750 g/ha 的 2, 4-D 钠盐相比，玉米棒数、籽粒数、每行籽粒数和种子指数都更高。与 80% WP @ 1,000 g/ha 的 2, 4-D 钠盐和 80% WP @ 750 g/ha 的 2, 4-D 钠盐相比，在 25 DAS 期施用 80% WP @ 1,250 g/ha 的 2, 4-D 钠盐可获得更高的玉米籽粒产量（3.7 吨/公顷）和秸秆产量（4.7 吨/公顷）以及更高的收获指数（44.5%）和货币收益（62.5 × 103 `/公顷）。

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

Indian Journal of Agronomy Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

0.50

自引率

0.00%

发文量

期刊介绍： Indian Journal of Agronomy welcomes concise articles presenting original research data based on field experiments on all aspects of agronomy in different crops and related cropping systems. • The journal publishes only full length comprehensive articles based on new approaches/findings in English only. • Review articles are also considered but these are normally solicited by Editorial Board. However, the authors who wish to contribute a review on their own based on their standing in the relevant field may contact the Secretary or Chief Editor with a broad outline before submitting the manuscript.