بررسی کارایی علف کش بیس پیریباک سدیم SC42% در کنترل علف های هرز برنج (Oryza sativa L.)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار پژوهش، بخش تحقیقات گیاهپزشکی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان گیلان، سازمان تحقیقات، آموزش و ترویج کشاورزی، رشت، ایران

2 محقق، بخش تحقیقات گیاهپزشکی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان مازندران، سازمان تحقیقات، آموزش و ترویج کشاورزی، ساری، ایران

3 استادیار پژوهش، بخش تحقیقات گیاهپزشکی، مرکز تحقیقات و آموزش کشاورزی و منابع طبیعی استان مازندران، سازمان تحقیقات، آموزش و ترویج کشاورزی، ساری، ایران

چکیده

برای ارزیابی کارایی علف‌کش بیس­پیریباک­سدیم  SC42% (ریزین) در کنترل علف­های هرز برنج در روش کشت نشایی و مقایسه آن با چند علف‌کش ثبت‌شده برنج، آزمایشی در دو منطقه گیلان (رشت) و مازندران (ساری) در سال 1398 اجرا شد. تیمارها شامل بیس­پیریباک­سدیم SC42% در چهار دز 50، 54، 58 و 62 میلی‌لیتر در هکتار، بیس­پیریباک­سدیم OF10%­ به­میزان 250 میلی‌لیتر در هکتار، بیس­پیریباک­سدیم SC40% به­میزان 65 میلی‌لیتر در هکتار، اکسادی­آرژیل EC30% به­میزان 5/3 لیتر در هکتار، مخلوط تریافامون ­+ ­اتوکسی­سولفورون WG30% به­میزان 150 میلی‌لیتر در هکتار، پرتیلاکلر EC50% به­میزان دو لیتر در هکتار و دو شاهد کنترل و بدون کنترل علف ­هرز بودند. آزمایش در قالب طرح بلوک­های کامل تصادفی با سه تکرار اجرا شد. نتایج نشان داد که علف‌کش جدید ریزین کارایی مطلوبی در کنترل علف­های هرز برنج داشت و حتی در بالاترین دز استفاده شده نیز موجب گیاه­سوزی برنج نشد. کارایی این علف‌کش در سه دز 54، 58 و 62 میلی­لیتر در هکتار در ساری بین 91-85 درصد در کنترل سوروف (Echinochloa crus galliL.)، 66-90 درصد در کنترل اویارسلام (Cyperus difformisL.) و 95-97 درصد در کنترل بندواش (Paspalum distichumL.) و در رشت، 93-60 درصد در کنترل سوروف، 100-60 درصد در کنترل اویارسلام و 77-30 درصد در کنترل بندواش متغیر بود. زیست‌توده علف‌های هرز در مزرعه آزمایشی ساری کم­تر از رشت بود که علت نتایج متفاوت کنترلی را توصیف می­کند. علف­کش ریزین در سه دز بالاتر مورد بررسی، کارایی مشابهی با علف‌کش‌های ثبت­شده در کنترل علف‌های هرز داشت و در دز 62 میلی­لیتر در هکتار دارای اجزای عملکرد (مانند تعداد پنجه و خوشه، زیست‌توده و عملکرد شلتوک) بسیار مطلوب و مشابه با شاهد کنترل علف هرز بود.

کلیدواژه‌ها


عنوان مقاله [English]

Investigating the efficacy of bispyribac sodium SC42% herbicide in rice (Oryza sativa L.) weeds control

نویسندگان [English]

  • Somayeh Tokasi 1
  • Morteza Nouralizadeh Otaghsara 2
  • Rohola Faez 3
1 Research Assist. Prof., Dept. of Plant Protection Research, Guilan Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Rasht, Iran
2 Researcher, Dept. of Plant Protection Research, Mazandaran Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Sari, Iran
3 Research Assist. Prof., Dept. of Plant Protection Research, Mazandaran Agricultural and Natural Resources Research and Education Center, Agricultural Research, Education and Extension Organization (AREEO), Sari, Iran
چکیده [English]

To evaluate the efficacy of bispyribac sodium SC42% herbicide (Rissin) on rice weeds control in transplanting method and comparing it with some registered herbicides, an experiment was carried out in two regions, Guilan (Rasht) and Mazandaran (Sari), Iran, in 2019. Treatments consisted as bispyribac sodium SC42% at four doses (50, 54, 58 and 62 ml.ha-1), bispyribac sodium OF10% at 250 ml.ha-1, bispyribac sodium SC40% at 65 ml.ha-1, oxadiargyl EC30% at 3.5 L.ha-1, triafamon + ethoxysulfuron WG30% at 150 g.ha-1, pertilachlor EC50% at 2  L.ha-1, together with two check treatments (weed free and unweeded treatment). The experiment was performed in randomized complete block design with three replications. The results showed that Rissin had good efficacy on weed control and did not cause rice damage even at the highest used dose. The efficacy of Rissin for weed control at three doses of 54, 58 and 62 ml.ha-1 was 85-91% for barnyardgrass (Echinochloa crus galli L.), 66-90% for nutsedges (Cyperus difformis L.) and 95-97% for crowngrass (Paspalum distichum L.) in Sari and 60-93% for barnyardgrass, 60-100% for nutsedges and 30-77% for crowngrass in Rasht. Weed biomass in the experimental field in Sari was lower than in Rasht, which explains the reason of the different control results. Rissin at the three higher doses had similar efficacy to commercial doses of the registered herbicides for weed control and in term of rice yield components (such as tiller and panicle number, biological yield and grain yield), the best result was obtained at 62 ml.ha-1 of Ressin and was similar to weed free treatment.

کلیدواژه‌ها [English]

  • Barnyardgrass
  • Crowngrass
  • Pre-emergence herbicide
  • Post-emergence herbicide
  • Nutsedges
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