flapkbz ty mi;ksx dh n{krk c<+kus ds fy, e`nk ueh vkadyu dh rduhdsa

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82 Hkkjrh; oskkfud,oa vks ksfxd vuqla/kku if=kdk o"kz 20 vad 1 twu 2012 i`- 82-86 flapkbz ty mi;ksx dh n{krk c<+kus ds fy, e`nk ueh vkadyu dh rduhdsa t;ohj R;kxh],l,y JhokLro,oa jktnso flag jk"vªh; tyfokku lalfkku] :M+dh Lkkjka'k % Hkkjr ds flafpr d`f"k {ks=k esa ikuh dk csgrj mi;ksx u gksuk,d fpurk dk fo"k; gsa vu; {ks=kksa esa ikuh dh cjkcj c<+rh ek x ds dkj.k lu~ 2025 rd flapkbz {ks=k esa ikuh dh orzeku fgllsnkjh 84» ls?kvdj 74» rd gksus dk vuqeku gsa blfy, flapkbz ty mi;ksx dh n{krk ds orzeku Lrj esa lq/kkj ykuk ty izca/ku {ks=k dk vkt,d egroiw.kz 'kks/k dk fo"k; gsa bl ifjizs{; esa e`nk ueh dh eki vksj mldk flapkbz ds fu/kkzj.k esa mi;ksx,d egroiw.kz Hkwfedk fuhkk ldrk gsa e`nk lrg ds uhps e`nk ueh dh tkudkjh ds vhkko essa Qlyksa dh T;knk ;k de flapkbz djus dh ijeijk gsa flapkbz ty dk lgh le; ij mfpr ek=kk esa mi;ksx u dsoy Qlyksa }kjk ikuh mi;ksx dh mpp n{krk dks lqfuf'pr djrk gs cfyd iks"kd rroksa ds fu{kkyu (leaching) dks Hkh de djrk gsa ifj.kkelo:ik feêh esa csgrj ok;q lapj.k ls Qlyksa dh isnkokj,oa d`f"k mrikndrk esa egroiw.kz lq/kkj gksrk gsa fdl le; ij Qly dks fdruk e`nk ty miyc/k gs rfkk dc vksj fdruh flapkbz djuh gs] dh tkudkjh ds fy, e`nk ueh dk vkadyu cgqr mi;ksxh gsa flapkbz esa e`nk ueh vkadm+ksa dk mi;ksx ty vksj ÅtkZ ds laj{k.k] lrgh vksj Hkwfexr ty ds iznw"k.k dks de djus rfkk Qlyksa dh b"vre isnkokj cuk;s j[kus esa Hkh lgk;d gsa e`nk ueh dks ekius dh vusd fof/k;k o midj.k miyc/k gsa ftudk p;u midj.kksa dh ykxr,oa mi;ksfxrk ij fuhkzj djrk gsa bl izi=k dk eq[; mís'; e`nk ueh ds ekiu dh fofhkuu miyc/k rduhdksa,oa midj.kksa dh tkudkjh nsuk rfkk e`nk ueh ds vk dm+ksa dk csgrj mi;ksx dj flapkbz ds {ks=k esa ikuh dh mi;ksx n{krk dks lq/kkjus ij cy fn;k x;k gsa Techniques of soil moisture measurement for enhancing irrigation water use efficiency Jaivir Tyagi, S L Srivastava & R D Singh National Institute of Hydrology, Roorkee 247 667 (Uttarakhand) Abstract One of the major concerns in irrigated agriculture in India is the poor water use efficiency. The share of irrigation water in the total demand is bound to decrease from the present 84% to 74% due to more pressing and competing demands from other sectors by 2025 AD. As such, the research on improving the present level of water use efficiency in irrigation assumes a great significance in water resource management. In this perspective, soil moisture measurement and its use in irrigation scheduling can play a vital role in increasing the water use efficiency. A tendency to over- or under-irrigate the cropped fields results due to the absence of information about the soil moisture status down the soil profile. Application of precise quantities of irrigation water at the right time not only ensures a high efficiency of water use by the crops, but also reduces nutrient losses through leaching, results in better aeration of the soil, and significantly improves crop yields and farm productivity. Soil moisture readings are useful in determining how much water is available for the crop, when to start irrigation and how much water to apply. Soil moisture monitoring, therefore, helps conserve water and energy, minimize pollution of surface and ground water, and produce optimum crop yields. A variety of methods are available for measuring soil moisture. The selection of method and equipment will depend on ease of use, cost of equipment, applicability to drier conditions, and desire to monitor continuous changes in soil moisture. The present paper aims at disseminating the knowledge of the available techniques and instrumentation for soil moisture measurement and its use in efficient scheduling of irrigation water applications that gives the highest return for the least amount of water.

R;kxh,oa vu; % flapkbz ty mi;ksx dh n{krk c<+kus ds fy, e`nk ueh vkadyu 83 IkzLrkouk Hkkjr esa dqy fu"dkflr ty dk 84» Hkkx flapkbz mi;ksx esa yk;k tkrk gs 1 A ysfdu flafpr d`f"k {ks=k esa ty dk csgrj mi;ksx u gksuk izeq[k fpurk dk dkj.k gs] tsls ugj flapkbz dh flapu n{krk ek=k 38 ls 40» rfkk Hkwty flapkbz dh flapu n{krk 60» vk dh tkrh gsa blfy, ikuh mi;ksx dh orzeku n{krk ds Lrj dks lq/kkjuk flapkbz ty izcu/ku ds fy, cgqr gh egroiw.kz gsa lgh ek=kk esa lgh le; ij flapkbz djus ls Qlyksa }kjk ty mi;ksx dh mpp n{krk lqfuf'pr djrk gs lkfk gh iks"kd rroksa dk fu{kkyu de gksus rfkk e`nk esa ok;q lapj.k csgrj gksus ds ifj.kkelo:ik Qly dh isnkokj,oa d`f"k mrikndrk es a myys[kuh; lq/kkj gksrk gsa e`nk lrg ds uhps e`nk ueh dh tkudkjh ds vhkko esa Qly dh T;knk ;k de flapkbz djus dh ijeijk gs blfy, gesa flapkbz ty izcu/ku dks rduhdh :i ls lefkz cukuk gksxka gesa eǹk ueh dk vk dyu dj lgh ek=kk esa lgh le; ij flapkbz vuqlwph rs;kj djus dh tkudkjh fodflr djuh gksxha eǹk ueh dks ekius dh vusd fof/k;k,oa midj.k miyc/k gsa ftudk p;u midj.kksa dh ykxr,oa mi;ksfxrk ij fuhkzj djrk gsa bl 'kks/k i=k dk eq[; y{; eǹk ueh ds vk dyu dh fofhkuu miyc/k rduhdksa,oa midj.kksa dh tkudkjh nsuk rfkk eǹk ueh ds vk dyu dk csgrj mi;ksx dj flapkbz ds {ks=k es a ikuh dh mi;ksx n{krk dks lq/kkjus ij cy fn;k x;k gsa e`nk ty ekiu e`nk ueh ds Lrj dks e`nk ty dh ek=kk (rfkk e`nk ty pw"k.k (soil suction) ds :i esa O;Dr fd;k tk ldrk gsa e`nk ty dh ek=kk (Soil water content) e`nk ty dks lkeku; :i ls vk;ru ds izfr'kr esa] Hkkj ds izfr'kr esa ;k izfr QqV fev~vh eas ty dh bapksa esa ek=kk ds :Ik esa O;Dr fd;k tkrk gsa eǹk ty /kkj.k dhs {kerk eǹk dh cukov,oa lajpuk ij fuhkzj djrh gs ¼fp=k 1½A e`nk ty pw"k.k (Soil water potential/suction) e`nk ty pw"k.k ;g bafxr djrk gs fd iks/kksa }kjk e`nk ty mi;ksx ds fy, fdruk dfbu ifjje djuk gksxka fev~vh ftruh gh lw[kh gksxh e`nk ty pw"k.k mruk gh T;knk gksxk vksj mruk gh dfbu gksxk iks/kka s dks eǹk ls ikuh [khapuka eǹk ty pw"k.k dks eǹk ty ek=kk eas ifjofrzr djus ds fy, e`nk ty,oa e`nk ruko dh tkudkjh pkfg, tslk fd fp=k 2 esa n'kkz;k x;k gsa fp=k 1 fofhkuu izdkj dh e`nkvksa dh fof'k"v ty /kkj.k {kerk fp=k 2 e`nk ty /kkj.k oø e`nk ty ekius dh rduhd e`nk ty dks nks vyx&vyx rjhdksa ls ekik tkrk gsa 1- ek=kkred fof/k;k tks e`nk ty dh ek=kk n'kkzrh gsa o 2- xq.kkred fof/k;k tks e`nk ty pw"k.k n'kkzrh gsaa ek=kkred fof/k;k eǹk ueh ekius dh ek=kkred fof/k;ks a es a HkkjkRed (gravimetric) fof/k] U;wVªkWu izdh.kzu (neutron scattering) fof/k rfkk f}&fo qr flfkjkad fof/k (dielectric constant) eq[; :i ls gsaa bu fof/k;ksa ls izfr QqV e`nk esa e`nk ueh dh ek=kk fudkyh tk ldrh gsa e`nk ds tm+ {ks=k esa,d QqV ds vurjky ij e`nk ueh dh cgq eki yh tk ldrh gs rfkk izr;sd vyx&vyx QqV xgjkbz ij yh x;h eki dk tksm+ djus ls tm+ {ks=k esa dqy e`nk ueh Kkr dj ldrs gsaa nks vyx&vyx le;ksa ij ekih x;h e`nk ueh dh rqyuk,oa fo'ys"k.k dj ml le; vurjky esa e`nk ueh esa vk;h deh ;k iquhkzj.k dks bapksa esa Kkr fd;k tk ldrk gsa HkkjkRed fof/k % ;g fof/k dqy eǹk ty ek=kk fudkyus dh lh/kh,oa ljy rduhd gsa bl fof/k esa e`nk uewuksa dks HkV~Vh esa

s a 84 Hkkjrh; oskkfud,oa vks ksfxd vuqla/kku if=kdk o"kz 20 vad ¼1½ twu 2012 105 C ij yxhkx 24?k.Vs ds fy, lq[kk;k tkrk gs rfkk e`nk ds izkjfehkd otu ls lw[ks otu dks?kvkdj e`nk ty dk otu Kkr fd;k tkrk gsa e`nk ty ds otu dks lw[kh e`nk ds otu ls Hkkx nsus ij e`nk ty dks Hkkj ds izfr'kr :i esa Kkr dj ldrs gsa vksj vxj eǹk uewuks a ds Kkr vk;ru dk iz;ksx fd;k tk; rks eǹk ty dks vk;ru ds izfr'kr :i esa fudkyk tk ldrk gsa bl fof/k dks U;wVªkWu izksc,oa f}&fo qr flfkjkad fof/k dks vizr;{k :i esa va'kkadu ds fy, Hkh iz;ksx fd;k tkrk gsa ;g fof/k vr;ur ljy] O;kogkfjd,oa llrh rfkk lvhd gsa ysfdu bl fof/k es a le; vksj Je T;knk yxrk gs rfkk pv~vkuh eǹk es a ;g rduhd dfbukbz isnk djrh gsa bl fof/k ds fy, ysc HkV~Bh] e`nk uewuksa dks,df=kr djus ds midj.k] Hkkj rqyk br;kfn vko';d gsaa U;wVªkWu izdh.kzu fof/k % eǹk ds vunj ik;s tkus okys ;ksfxdks a es a ty lcls T;knk gkbmªkstu ;qdr ;ksfxd gsa blh vk/kkj ij U;wVªkWu izksc }kjk eǹk ds Kkr vk;ru es a gkbmªkstu dh ek=kk dks ekidj eǹk ty vk;ru dk izfr'kr :Ik esa ifjdyu fd;k tkrk gsa U;wVªkWu izksc ;wfuv ftlesa rst,oa mpp ÅtkZ ;qdr U;wVªkWu gksrs gsa] dks e`nk esa igys ls LFkkfir ikbi esa uhps igq pk;k tkrk gsa izksc ;wfuv,d ds scy }kjk Hkwfe lrg ij j[ks,d fu;u=k.k ;wfuv ls tqm+k gksrk gsa izksc dks tm+ {ks=k dh xgjkbz rd tgka&tgka izs{k.k@jhfmax ysuk gksrk gs] igq pk;k tkrk gsa lzksr ls rst xfr ls mrlftzr U;wVªkWu LFkkfir ikbi ls gksdj fev~vh ds pkjksa rjq e`nk ty ds gkbmªkstu v.kq ls Vdjkdj viuh ÅtkZ esa deh djrs gsaa gkbmªkstu v.kq ls Vdjkus ds ifj.kkelo:ik de ÅtkZ ls ;qdr /kheh xfr ds U;wVªkWu lewg okil igq p dj fu;u=k.k ;wfuv }kjk ekis tkrs gs aa U;wVªkWu dh ÅtkZ] e`nk lewg ds vkdkj,oa?kuro e`nk ds izdkj] e`nk ty dh ek=kk rfkk LFkkfir V;wc ds inkfkz ij fuhkzj djrk gsa fof'k"v le;kurjky esa ekis x;s /kheh xfr ds U;wVªkWuksa dh la[;k dqy vk;rfud e`nk ty ds lkfk js[kh; lecu/k esa gksrh gsa U;wVªkWuksa dh la[;k,oa vk;rfud e`nk ty ek=kk ds lecu/k dk va'kkadu nwljs inkfkz dh cuh V~;wc dk iz;ksx djus ij vko';d gksrk gsa U;wVªkWu izksc }kjk e`nk ty ek=kk dh tkap vyx&vyx LFkkuksa,oa xgjkb;ksa ij rst xfr ls nksgjk;h tk ldrh gsa va'kkafdr U;wVªkWu izksc }kjk dqy eǹk ty ek=kk dh eki vr;ur lgh fof/k gsa bl fof/k dk gkfudkjd i{k ;g gs fd blesa mi;ksx gksus okys jsfm;ks,fdvo inkfkz ds dkj.k,d vuqkkfir o vuqhkoh izpkyd dh vko';drk gksrh gsa blds vfrfjdr ;g midj.k eg xk Hkh gksrk gs rfkk blds l?ku va'kkadu dh vko';drk gksrh gsa lkfk gh ;g midj.k lrg ls vkb bup dh xgjkbz rd dk eki lgh ugha dj ikrk D;ksafd Åijh lrg ls U;wVªkWu fudy tkrs gsaa f}&fo qr flfkjkad fof/k % f}&fo qr flfkjkad fof/k }kjk dqpkyd eǹk es a iz sf"kr mpp rhozrk dh fo qr pqecdh; rjaxks a dh iz s"k.k {kerk dks ekik tkrk gsa iz s{k.k {kerk ds vk/kkj ij eǹk ueh dh ek=kk dk vkadyu fd;k tkrk gsa bl fof/k ds mi;ksx dk vk/kkj ;g gs fd 30 MHz vksj 1 GHz ds chp lw[kh eǹk dk f}&fo qr flfkjkad 2 ls 5 ds chp rfkk ikuh dk 80 gksrk gsa Vkbe Mksesu fj ysdvªksehvj ¼Vh-Mh-vkj-½ lcls lk/kkj.k,oa mi;ksxh ;U=k gs ftlls eǹk ty ek/;e dk f}&fo qr flfkjkad eki dj eǹk ty ds vk;rfud ek=kk dk vuqeku yxk;k tkrk gsa VhMhvkj es a,d bysdvªkwfud ehvj gksrk gs tks nks lekukurj NM+ks a ls,d rkj }kjk tqm+k gksrk gsa lekukurj NM+sa fev~vh esa eki ysus ds fy, xgjkbz rd /k lk;h tkrh gasa ;g midj.k cgqr mpp rhozrk dh vuqizlfk fo qr pqecdh; rjaxksa dks dscy,oa izksc }kjk e`nk esa ig qpkrk gsa fo qr pqecdh; rjaxksa dk flxuy izksc dh,d NM+ ls nwljh NM+ rd gksrs gq, okil ehvj esa igq prk gs tks Hksts x;s iyl flxuy rfkk okil ijkofrzr flxuy ds iyl ds le; dks ekirk gsa NM+ka s,oa dscy dh yeckbz ds vk/kkj ij lapj.k osx dk ifjdyu fd;k tkrk gsa lapj.k osx ftruk rhoz gksxk] f}&fo qr flfkjkad mruk gh de gksxk vksj mlh vuqlkj eǹk ueh de gksxha Vh-Mh-vkj- ds ykhknk;d i{k gs a fd ;g midj.k lkis{k :i es eǹk ty dh lgh ek=kk (±1 ls 2%) n'kkzrk gs rfkk lh/ks vk;rfud e`nk ueh dh eki dks n'kkzrk gs vksj vk dm+ksa dks yxkrkj laxzg dj ldrk gsa blesa va'kkadu dh vko';drk ugha gksrh rfkk e`nk esa ued dh miflfkfr bl ;a=k dks izhkkfor ugha djrh gsa Vh-Mh-vkj- ;wfuv eg xk ¼3 ls 5 yk[k #Ik;s½ gksrk gs rfkk izksc dh NM+ks a dk eǹk ls leidz Bhd u gksus dh n'kk es a jhfmax izhkkfor gksrh gsa NM+ a dbksj rfkk pv~vkuh fev~vh esa {kfrxzlr gks tkrh gsaa xq.kkred fof/k;k % xq.kkred fof/k;ks a es a fo qr izfrjks/kd Cykdks a,oa VsfUl;ksehVjksa dk iz;ksx dj e`nk ty pw"k.k dk vuqeku yxk;k tkrk gsa bu fof/k;ks a es a lh/ks rksj ij eǹk ty dh ek=kk u eki dj iks/kksa ds fy, ty miyc/krk dh dfburk dks ekik tkrk gsa bl izdkj xq.kkred fof/k gesa flapkbz fdruh djuh gs u crkdj ;g crkrh gs fd flapkbz dc izkjehk djuh gsa pw fd lkeku; :Ik ls iksjl CykWd vksj VsfUl;ksehVj,d LFkku ls nwljs LFkku ij ugha ys tk;s tk ldrs gsa] blfy, dsoy,d gh fcunq ij ekius ds fy, mi;ksxh gksrs gsaa tm+ {ks=k esa izfrfuf/kro ueh ds eki ds fy, dbz xgjkb;ks a ij eki vko';d gsa eǹk ty ekiu lkbvks a dh la[;k {ks=k

R;kxh,oa vu; % flapkbz ty mi;ksx dh n{krk c<+kus ds fy, e`nk ueh vkadyu 85 ds vkdkj,oa fev~vh dh ifjorzu'khyrk ij fuhkzj djrh gsaa fo qr izfrjks/kd CykWd Ikksjl CykWd ds iz;ksx dk fl)kur ;g gs fd iksjl CykWd dh fo qr pkydrk mlesa miyc/k ueh ds vuqikrh gksrh gsa iksjl CykWd ftile] Xykl ftile] esfvªdl] phuh fev~vh] uk;ykwu ;k Qkbcj Xykl dk cuk gksrk gsa nks bysdvªksm dks CykWd ds vunj LFkkfir fd;k tkrk gs vksj nks rkjksa ds tfj;s bu bysdvªksmksa dks tksm+dj rkjksa dks lrg rd igq pk;k tkrk gsa CykWd dks fev~vh esa okafnr xgjkbz ij eki ds fy, yxk;k tkrk gsa e`nk ty CykWd ds vunj,oa ckgj e`nk ueh ls larqfyr gksdj xfr'khy :Ik ls O;ofLFkr gks tkrk gsa tc CykWd esa e`nk ueh dk lapj.k fev~vh esa pkjksa rjq ls larqfyr gks tkrk gs] rc ehvj }kjk CYkkWd esa yxs bysdvªksm ds fo qr izfrjks/k dks ekirs gsaa fo qr izfrjks/k dh eki e`nk ty ruko dks n'kkzrh gsa midj.k fuekzrk vkerksj ij ehvj jhfmax dks e`nk ty ruko esa ifjofrzr djus dk va'kkadu miyc/k djkrs gsaa ;g fof/k ckj&ckj 'kh?kzrk ls nksgjk;h tk ldrh gs vksj vis{kkd`r llrh gsa fo'oluh; vk dyu ds fy, ;g vko';d gs fd CykWd e`nk esa vpnh rjg LFkkfir fd;k x;k gks ftlus fev~vh ls vpnh rjg izkd`frd leidz cuk fy;k gksa ftile CykWd {kkjh; Hkwfe esa T;knkrj u"v gks tkrs gsa] ftugsa cnyus dh t:jr gksrh gsa fev~vh esa?kqyu'khy yo.k fev~vh dh pkydrk,oa izfrjks/kksa dks izhkkfor djrs gsa ftlds dkj.k ehvj jhfmax izhkkfor gksrh gsa ftile CykWd ckjhd cukov okyh fev~vh ds fy, csgrj gksrk gs D;ksafd lkeku;r;k ckjhd lajpuk okyh fev~vh 100 lsuvhckj rd laosnu'khy ugha gksrh gsa jsrhyh fev~vh esa miyc/k e`nk ty Lrj CykWd dh ekiu lhek ds ckgj gksrk gsa bl midj.k dh dher fuekzrk,oa CykWd ds izdkj ij fuhkzj djrh gs tks yxhkx 5000 #Ik;s gsa VsfUl;ksehVj VsfUl;ksehVj ikuh ls Hkjk,d IykfLVd V~;wc gksrk gs ftlds,d fljs ij iksjl di,oa nwljs fljs ij,d osd;we xst yxk gksrk gsa bl midj.k dks fev~vh es a okafnr xgjkbz ij iksjl di ls fev~vh dk vpnk leidz cukrs gq, yxk;k tkrk gs 4 A VsfUl;ksehVj esa ikuh iksjl di ds ek/;e ls e`nk ty ds lkfk larqfyr volfkk esa vk tkrk gsa tc fev~vh lw[krh gs rks iksjl di ls ikuh fev~vh esa lapfjr gksrk gs vksj QyLo:Ik V;wc esa osd;we,oa ruko mriuu gksrk gs] ogha tc fev~vh xhyh gks tkrh gs rks fev~vh ls ikuh iksjl di ls V;wc esa pyk tkrk gs tks ruko,oa osd;we dks de dj nsrk gsa blh ruko dks osd;we xst,d lwpdkad ds :Ik esa ekirk gsa fev~vh ds uewus,df=kr dj fofhkuu rukoksa ij e`nk ueh cuk;s j[kus dk oø fodflr fd;k tkrk gsa ftldh enn ls e`nk ty dh ek=kk dk ifjdyu gksrk gsa T;knkrj VsfUl;ksehVj esa 0&100 lsuvhckj Ldsy gksrk gs tgka 0 lsuvhckj jhfmax iw.kz :Ik ls larìr volfkk dks n'kkzrh gsa iwjh eǹk izksqkby dh eǹk ueh dh csgrj tkudkjh ds fy, iks/kks a ds tm+ {ks=k es a iksjl di LFkkfir fd;k tkrk gs D;ks afd iks/kks a dh 70» tm+ eǹk ds tm+ {ks=k ds 50» Åijh lrg ij gksrh gs 3 A izr;sd fcunq ij de ls de nks VsfUl;ksehVj tm+ {ks=k ds 1@3,oa 2@3 Hkkx xgjkbz ij yxk;k tkuk pkfg,a Åijh lrg ij yxk;k x;k VsfUl;ksehVj gesa flapkbz dc izkjehk djuh gs] dh csgrj tkudkjh nsrk gs ogha xgjs VsfUl;ksehVj fdruh flapkbz djuh gs] dh tkudkjh nsrk gsa xgjs VsfUl;ksehVj dh jhfmax Åijh lrg ls T;knk gksus ij gesa flapkbz T;knk djuh pkfg,a vxj xgjs VsfUl;ksehVj dh jhfmx lar`ir volfkk dh gs rks bl volfkk esa iks"kd rroksa,oa ty ds fu{kkyu dh lehkkouk c<+ tkrh gsa flapkbz dh xgjkbz dk vkadyu flapkbz ty dh ek=kk fofhkuu Qlyksa dh tm+ksa dh xgjkbz ij fuhkzj djrh gs fd fdruh xgjkbz rd flapkbz ty igq pk;k tk;a fofhkuu izdkj dh eǹkvks a es a 50» eǹk ty dh miyc/krk ij izr;sd,d ehvj xgjh eǹk dh flapkbz ds fy, vko';d ty dh ek=kk dks lkj.kh 1 esa n'kkz;k x;k gsa lkj.kh 1 fofhkuu e`nkvksa ds fy, flapkbz dh xgjkbz dk fooj.k e`nk dk izdkj flapkbz ty ¼feeh-½ izfr ehvj xgjkbz ¼e`nk ueh dh 50 izfr'kr miyc/krk ij½ jsrhyh 25 ls 50 jsryh nksev 45 ls 80 e`frdk nksev 80 ls 120 e`frdk 100 ls 140 e`nk ty eki dk flapkbz vuqlwph esa mi;ksx flapkbz vuqlwph ds fodkl esa e`nk ueh ds vk dyu dh vge Hkwfedk gksrh gsa eǹk ueh dh eki Lor% gh flapkbz izkjehk djus dh lwpuk nsrh gs ysfdu ;g rc vksj egroiw.kz gks tkrh gs tc e`nk ty ds vk dm+s vu; flapkbz vuqlwph fodkl dh fof/k;ksa tsls psdcqd] lax.kd fun'kz ds lkfk iz;ksx fd;s tkrs gsaa e`nk ueh ds vk dm+ks a dh enn ls izkjfehkd eǹk ty larqyu fudkyk tkrk gs rfkk

86 Hkkjrh; oskkfud,oa vks ksfxd vuqla/kku if=kdk o"kz 20 vad ¼1½ twu 2012 iwjs flapkbz dky es a iqu% eǹk ty larqyu dks ifjekftzr fd;k tkrk gsa tgk flapkbz vuqlwph ds fodkl esa e`nk ueh dk iz;ksx gksrk gs ogk gesa de ls de nks fnu esa,d ckj eǹk ueh dh jhfmax vo'; ysuh pkfg,a tgk eǹk ueh dh jhfmax dk iz;ksx vu; vuqlwph dh fof/k;kas esa fd;k tkrk gs] ogk ij gesa lirkg esa,d ;k nks ckj vo'; jhfmax ysuh pkfg,a flapkbz ds ekxzn'kzu ds fy, VsfUl;ksehVj,oa izfrjks/kd CykWd ds vk dm+ksa dk iz;ksx lkj.kh 2 esa n'kkz;k x;k gs 4 A e`nk ueh] o"kkz] flapkbz ek=kk vksj Qly dh flfkfr ds vk dm+s Hkfo"; es a flapkbz ty izcu/ku dh ;kstuk es a egroiw.kz Hkwfedk fuhkk ldrs gsaa lunhkz 1- Hkkjr ljdkj] nloha iapo"khz; ;kstuk 2002&2007] vol. I ls vol. II, ;kstuk vk;ksx] ubz fnyyh ¼2002½- 2- IkzhpkMZ Vsjh,y] e`nk ueh ekih; rduhdh] dsyhqksfuz;k fo'ofo ky; Msfol- ih-mh-,q Qkby (ucce=ucdavis.edu/files/file library/40/ 975.pdf). 3- tkdgsu lsud,p,oa jkcvz ch tsdlu] :fvax MsIFl] ysvjy :V LizsM~l,.M fcyks xzkmum@,ckso xzkmum,yksfevªht vkwq IykUV~l bu okvj fyfevsm bdksfllve- tuzy vkq bdksykwth] 90 ¼2002½ 480&494-4- letlvªyk, th,oa gjh'ku Mh,l] VsfUl;ksehVj QkWj LkkW;y ek;lpkj estjesuv,.m bfjzxs'ku flm~;wfyax] MkWD;wesUV Uka0 CIR487],xzhdYpjy,.M ck;ksykwftdy bathfu;fjax fmikvzesuv] yksfjmk dksvkijsfvo,dlvsa'ku lfozl] bulvhv~;wv vkwq QwM,.M,xzhdYpjy lkbalst] ;wuhoflzvh vkwq yksfjmk ¼1998½- 5- osjuj,p] bfjzxs'ku okvj esustesuv% estfjax lkw;y ek;lpj] ifcyds'ku ua- FS876, dkwyst vkwq,xzhdypj,.m ck;ksyksftdy lkbalst] lkmfk MdksVk LVsV ;wuhoflzvh] czwfdaxl ¼2002½lkj.kh 2 e`nk ty dh miyc/krk ds vuqlkj e`nk ruko jhfmax eǹk ds izdkj eǹk pw"k.k lsuvhckj {ks=kty e`nk ueh dh 50 izfr'kr e`nk /kkj.k {kerk mi;qdr lhek ueh ij ¼flapkbZ vko';d½ jsrhyh nksev 10&15 30&50 45&60 nksev@xknnksev 10&20 35&55 50&70 e`frdk nksev@ 15&20 40&60 60&100 e`frdk fu"d"kz lkj :Ik esa ge ;g dg ldrs gsa fd e`nk ueh dks ekius dh vusd fof/k;k,oa midj.k miyc/k gsaa midj.kksa dk p;u budh ykxr o mi;ksfxrk ij fuhkzj djrk gs fd D;k ge yxkrkj e`nk ueh ds vk dm+s,df=kr djuk pkgrs gsa\ rfkk fdl rjg dh e`nk dh {ks=k flfkfr gsa\ tsls T;knk lw[kh] T;knk ue ;k dbksj br;kfn\ e`nk ueh ds vk dm+s] Qly ds fy, miyc/k ty dh tkudkjh rfkk flapkbz dc vksj fdruh djuh gs] ds fu.kz; esa ykhknk;d gksrs gsaa fev~vh dh ueh dh tk p dh fuxjkuh j[kus ls ge ty laj{k.k dj ÅtkZ dh cpr dj ldrs gsa rfkk dq'ky flapkbz vuqlwph dk iz;ksx dj cgqr FkksM+s ty ls gh vpnh mit ik ldrs gsaa Hkkjr tsls d`f"k iz/kku ns'k esa ;g fof/k viukdj vewy; izkd`frd ty dh cpr djrs gq, isnkokj esa ØkfUrdkjh c<+r gkfly dj ns'k dks izxfr ds ekxz ij ys tk ldrs gsaa