ধানের ব্লাস্ট রোগ ও প্রতিকার।

ধানের ব্লাস্ট রোগ ও প্রতিকার।

eøv÷ ‡ivM (Blast)

‡iv‡Mi RxevYy- Pyricularia grisea

eøv÷ av‡bi GKwU QÎvKRwbZ ‡ivM| evsjv‡`‡k GwU Ab¨Zg cÖavb ‡ivM| ‡ivMwU ‡iv‡iv I Avgb ‡gŠmy‡g ‡ewk nq Ges Pviv Ae¯’v ‡_‡K avb cvKvi AvM ch©šÍ ‡h ‡Kvb mgq GB ‡ivM ‡`Lv hvq| GwU cvZv eøv÷, wMuU eøv÷I wkl eøv÷ bv‡g cwiwPZ| iv‡Z VvÛv, w`‡b Mig, iv‡Z wkwki cov Ges mKv‡j Kyqvkv _vK‡j ‡ivMwU `ªæZ we¯Ívi jvf K‡i Ges av‡bi cÖf~Z ¶wZmvab K‡i _v‡K| ‡ivMc«eY Rv‡Z ‡ivMwU n‡j kZKiv 80 fvM ch©šÍ djb K‡g hvq| AwaK gvÎvq bvB‡U«v‡Rb mvi Ges evZv‡mi Av`«©Zv G ‡iv‡Mi c«‡Kvc evovq| gv‡V G ‡iv‡Mi AvµgY e¨vcK n‡j avb ‡¶Z cy‡o e‡m hvq| GB ‡iv‡Mi Kvi‡Y Rwgi mg¯Í avb bó n‡q ‡h‡Z cv‡i| wKš‘ c«wZ‡ivaK Rv‡Zi cvZvi g‡a¨ Avjwc‡bi gv_vi gZ ‡QvU ev`vwg `vM‡K ev`vwg `vM ‡ivM e‡j fyj n‡Z cv‡i|

‡ivM ‡Pbvi Dcvq

eøv÷ ‡ivMwU av‡bi cvZv, wMuU, wk‡li ‡Mvov ev kvLv-c«kvLv Ges ex‡R AvµgY K‡i _v‡K|

1.cvZv eøv÷

G ‡ivM c«_‡g cÎdj‡K AwZ ‡QvU wW¤^vK…wZ `vM c‡o| `v‡Mi Pvi cv‡k ev`vwg I gv‡Si Ask mv`v ev QvuB eY© aviY K‡i| A‡bK ¸‡jv `vM GK‡Î wg‡k wM‡q cy‡iv cvZv g‡i hvq| G `v‡Mi gvSvgvwS Ask c«k¯Í nq Ges `yÕc«všÍ miy _v‡K hv‡Z `vMUv‡K g‡b nq A‡bKUv ‡Pv‡Li gZ| eo `vM¸‡jvi (1.0-1.5 x 0.3-0.5 ‡mw›UwgUvi) ‡K›`« fvM a~mi e‡©Yi nq|

2.wMuU eøv÷

wMu‡U AvµvšÍ n‡j AvµvšÍ ¯’vb Kv‡jv I `ye©j nq| ‡Rv‡i evZvm c«evwnZ n‡j AvµvšÍ ¯’vb ‡f‡½ c‡o hvq wKš‘ GK`g Avjv`v n‡q hvq bv| G Ae¯’vq AvµvšÍ wMu‡Ui Dc‡ii Ask gviv hvq|

3. wkl eøv÷

wk‡li ‡Mvovq AvµvšÍ n‡j ‡mLv‡b ev`vgx `vM c‡o| wk‡li ‡Mvov ev ‡h ‡Kvb kvLv A_ev av‡b AvµvšÍ n‡Z cv‡i| wk‡li ‡Mvovq Avµvg‡Yi d‡j ‡m Ask cu‡P hvq Ges wkl ‡f‡½ c‡o| avb cyó nIqvi Av‡M ‡iv‡Mi AvµgY NU‡j wk‡li mKj avb wPUv n‡q hvq|

‡ivM cÖwZ‡iva

K. exR AsKy‡iv`Mgb ¯Í‡i e¨e¯’vcbv (Management of  Seed Germination Stage)

1. exR wfRv‡bvi c~‡e© GKUy nvév ‡iv‡` exR ïKv‡q wbb|

2. ex‡Ri AsKy‡iv`Mg ¶gZv cix¶v Kiæb| kKZiv 80 fvM ev Z‡ZvwaK exR MRv‡bv ¶gZv m¤úbœ exR wbe©vPb Kiæb|

3. exR evwnZ ‡ivM ‡hgb- eøvó, evKvbx, ev`vgx `vM ‡ivM, ‡LvjcuPv ‡ivM, cvZv ‡dv¯‹v ‡ivM, f~qvSyj, ‡MvovcuPv ‡ivM `g‡bi Rb¨ 10 wjUvi cvwb‡Z 30 MÖvg, Kv‡e©ÛvwRg RvZxq QÎvKbvkK ‡hgb- ‡bvBb 50 WweøDwc/ e¨vwfw÷b wWGd/ †MvìvwRg 500Gmwm/ fvjKvb 50 WweøDwc, cÖf…wZ wgwk‡q fvjfv‡e Wywe‡q bvovPov K‡i 12 N›Uv wfwR‡q ‡i‡L exR ‡kvab Kiæb| AZtci cwi®‹vi cvwb‡Z exR ¸‡jv ay‡q P‡Ui e¯Ívq wfwR‡q RvM w`b|

L. kxl D`Mgb ¯Í‡ii e¨e¯’vcbv (Management of Heading stage)

w`‡bi ‡ejvq Mig I iv‡Z VvÛv, wkwk‡i ‡fRv mKvj, ‡gNv”Qbœ AvKvk, S‡ov AvenvIqv weivR Ki‡j ‡bK eøvó I kxl eøvó ‡iv‡M AvµvšÍ n‡Z cv‡i, ZLb- Gwg÷vi Uc/ wdwjqv 525 GmB/ bvwU‡fv 75 WweøDwc/ U«ycvi 75 WweøDwc cÖf…wZ QÎvKbvkK MvQ wfwR‡q †¯úª Kiæb| 

Ab¨vb¨ e¨e¯’vcbv

1. Rwg‡Z ‰Re mvi c«‡qvM Kiæb| 

2. ‡ivMgy³ Rwg ‡_‡K exR msM«n Kiæb| 

3. mylg gvÎvq BDwiqv mvi c«‡qvM Kiæb| 

4. Rwg‡Z me mgq cvwb ivLyb|

5. ‡iv‡Mi c«v_wgK Ae¯’vq weNv c«wZ 5 ‡KwR nv‡i cUvk mvi Dcwi c«‡qvM Kiæb| 

6. Rwg‡Z eøv÷ ‡ivM ‡`LvgvÎ cvwb a‡i ivLvi e¨e¯’v Kiæb| 

7. eøv÷ c«wZ‡ivaK Rv‡Zi avb weAvi-3, weAvi-5, weAvi-14, weAvi-15, weAvi-16, weAvi-25,          weAvi-26, we« avb-32, we« avb-33 we« avb- 44 Ges we« avb- 45 BZ¨vw` Pvl Kiv|

8. mKj myMwÜ avb, nvBwe«W avb, jeY mnbkxj avb, Ges we« avb 28, we« avb 29, we« avb 63, we« avb 64 av‡bi dyj Avmvi mgq wb¤§Pvc ‡`Lv w`‡j QÎvK bvkK AvMvg ‡¯ú« Kiv|

‡flR `gb e¨e¯’vcbv

1. ‡cu‡c cvZv Øviv `gbt

GK ‡KwR cwigvY ‡cu‡c cvZv wc‡l 10 wjUvi cvwb‡Z  20 M«vg wWUvi‡R›U cvDWvi GKmv‡_ wgk«Y K‡i wgk«YwU ‡Qu‡K 5 kZK RvqMvq  c«‡qvM Kiv|

2. Rev dy‡ji cvZvt

GK ‡KwR cwigvY Rev dy‡ji cvZv wc‡l 10 wjUvi cvwb‡Z  20 M«vg wWUvi‡R›U cvDWvi mn GK‡Î wgk«Y K‡i wgk«YwU ‡Qu‡K 5 kZK RvqMvq  c«‡qvM Kiv|

ivmvqwbK `gb e¨e¯’vcbv (Chemical suppression management)

‡c«vwc‡KvbvRj (12.5%) + U«vBmvK¬v‡Rvj (40%) Mªy‡ci ÔÔwdwjqv 525 GmBÕÕ c«‡qvM gvÎvt weNv c«wZ 133 wgtwjt A_ev, ‡Uey‡KvbvRj (50%) + U«vB‡d¬vw·‡÷«vweb (25%) Mªy‡ci ÔÔbvwU‡fv 75 Wwe­DwcÕÕ c«‡qvM gvÎvt weNv c«wZ 40 M«vg A_ev, G‡Rvw·‡÷«vweb (20%) + WvB‡d‡bv‡KvbvRj (12.5%) Mªy‡ci ÔÔGwg÷vi UcÕÕ c«‡qvM gvÎvt weNv c«wZ 100 wgtwjt A_ev, U«vBmvBK¬v‡Rvj Mªy‡ci ÔÔU«ycvi 75 WweøDwcÕÕ A_ev, wRj 75 WweøDwc A_ev, w`dv 75 WweøDwc c«‡qvM gvÎvt weNv c«wZ 55 M«vg nv‡i c«‡qvM Ki‡Z n‡e|

 

 

 

 

Dc¯’vcK myfvl P›`ª `Ë DcmnKvix K…wl Awdmvi ‡g‡UªvcwjUb K…wl Awdm, Wejgywis, PÆMÖvg| ‡gvevBj- 01815535571 B-‡gBj subhashdutta777@gmail.com