Strategies for Maximizing the Efficiency of Phosphorus Utilization in Cropping Systems Involving Chickpea and Pigeonpea

Johansen, C and Sahrawat, K L (1991) Strategies for Maximizing the Efficiency of Phosphorus Utilization in Cropping Systems Involving Chickpea and Pigeonpea. In: International workshop on Phosphorus Nutrition of Grain Legumes in the Semi-Arid Tropics, 8-11 Jan 1990, ICRISAT Patancheru, India.

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Thlr choprer rmmon:cr current kna,iadjia on phosphorw (P) ferri1r:er requ>renzcnrs of chtrkpea ond prpeonpea ,n drferta cropping BrlcmX and iirpgcrrr means of mvrtm!:ing rffic~rnrg of P feriillrer we in 60th rrodtr,onol and onianp cropplnp rvrremr In nion) ofrhe Pfirrt1t:er rrrills conducled for horli of rhrsr < rops !n Indlo, niosr1.v under dvlond eond,rtons, riprjcant responses occiv up ro vpp1,rarmn roiex of 1540 kg P im-1. Wzrh fir rvolunon of new cropping ryrrrnlr w,,rh itlghcr porrnr!nl )ieldr and hiomars prcduci!on, ond hence demond for P.fernIirer P tequrremenrx bored on srudws ojrrud~iionol nsrcmr need m k rrrmnlrnrd More rorlonal ood comhzncd roc of roil mops, roll onohr!r pion! anohiir poi Inair, ondfieid tr!vir Ir iupperrrd for dlotnorrr ofP deficlenr, and dcrernilnaitoti tfPfirri1r:cr rerponscfi~nciranr As chickpeo ond pigmnpro *re wualii grown in complex cropping vrrems, on tnlc-.qmrcd opprwrh 10 desrnlrnlnp P requiremenu ojrhr eniin sgsrem, mrher rhnn rhos? of lhr tndrviduoi rropr oione, rl>roripln~> odrlrnpo f the P cyt-i~~s rrroamcnded. A mojor imprdin~rnrl o r h i ~ap proach I$ nodeq qua re Pnonledte of riie iesiduol >olio ofP fcrr~ldier In rhe ioiI3 ond cropplnp ryslema of concern In lnireaiin.a P./.~ PICNCI. O./ P .h rrt1l:er we, cvrr ~hnididh r mien ro evoive onrrmum oppltcorton prorrdi'rtr for purr~ular rroppjnp rysrenir Deep piocemenr reenas ntoodoro; where rhe topsor1 is pmne 10 ilritnfi and tn struorionr *,here phospharejsooon Ir o prohien), hit! mug he feir8ii:er P roiucei for. rhese crops arpec!oiis m utr%, of rhr atriwm lllerr nror erudalrs in soIuhr1,:mp P arid rhei, n ~ ~ ~ o r r i i a~r:saoo/ o rrons The vonoiu aniio,lisms proposed h) nllch il~lr!.pra ondpltronpca iun rnlmnre [he owtlohic P rfarw ofrhc rural cropptnp vnea need 10 he qwmrifird, so rhur rlielr ri,mi,hconcr and scope for cxplo8,orron ran he d~rrmiinedT. he rrjenr ,f genotypx differcoce i f ? P-lrrr ?ffi;rficre,iiy needs ro hr adequorrb sludird m there crop? ro rhar the penerir tniproirn~e,,r oprmtt run he upproprwreiy aarrhed

Item Type: Conference or Workshop Item (Paper)
Subjects: Mandate crops > Chickpea
Mandate crops > Pigeonpea
Depositing User: Library ICRISAT
Date Deposited: 18 Dec 2011 10:11
Last Modified: 18 Dec 2011 10:11
Acknowledgement: UNSPECIFIED
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