Comparative performance of different methods of rice establishment</= title> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"City" downloadurl=3D"http://www.5iamas-microsoft-com:office:smartt= ags"/> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"country-region" downloadurl=3D"http://www.5iantlavalamp.com/"/> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"place" downloadurl=3D"http://www.5iantlavalamp.com/"/>  <style>  </style>  </head> <body lang=3DEN-US style=3D'tab-interval:.5in'> <div class=3DSection1> Comparative performance of dif= ferent methods of rice establishment<o:p></o:p> <o:p> </o:p> S.P. Singh, B. Sreedevi, R.M. = Kumar, P. Krishnamurthy and S.V. Subbaiah<o:p></o:p></= span> Directorate of Rice Research, Rajendranagar, <st1:place w:st=3D"on"><st1:City w:st=3D"on">Hyderabad</st1:City></st1:plac= e> – 500 030<o:p></o:p> <o:p> </o:p> &= nbsp; Rice (Oryza</sp= an> sativa L) is the staple food for = about 80 per cent population and a source of livelihood for about 120 – 150 million rural house holds in <st1:place w:st=3D"on"><st1:country-region w:s= t=3D"on">India</st1:country-region></st1:place>. It accounts for about 43 per cent of food grain production in the country. = Rice consumes major share of available water for irrigation and now major concer= n is that how to economize water use. The System of Rice Intensification (SRI) provides an opportunity for utilizing irrigation water more effectively with less seed rate and inorganic fertilizer use. System of Rice Intensification= has recorded 10 – 20 per cent more grain yield in comparison to conventio= nal transplanting at different locations.<o:p></o:p> <o:p> </o:p> &= nbsp; Field trials were conducted during rabi 2004-05 and <sp= an class=3DSpellE>kharif 20= 05, at the research farm of Directorate of Rice Research, Raj= endranagar, <st1:City w:st=3D"on"><st1:place w:st=3D"on">Hyderabad</st1:place></st1:Cit= y>. The experimental site was silty clay loam with pH 8= .2 and 255, 25 and 520 kg/ha available nitrogen, phosphorus and potash, respective= ly. Hybrid rice variety KRH-2 was tested with six treatments of SRI - T1 – SRI + FYM (10 t/ha) + <= span class=3DSpellE>conoweeder (4 times); T2 – SRI + FYM (10 t/ha) = + butachlor + conoweeder (2= times); T3 - SRI + FYM (10 t/ha) + <s= pan class=3DSpellE>butachlor + manual weeding; T4 – SRI + FYM (5 t= /ha) + conoweeder (4 times); T5 – SRI + FYM (5 t= /ha) + butachlor + conoweeder</sp= an> (2 times); T6 – SRI + FYM (5 t/ha) + butachlor</spa= n> + manual weeding) in comparison to T7 - direct seeding of sprouted seed and T= 8 - conventional transplanting. The trial was laid out in random block design w= ith three replications. <a name=3D"OLE_LINK1"></a><a name=3D"OLE_LINK2">Grain yield differences were significant a= mong different treatments. On the basis of mean of two years data, maximum grain yield of 5.87 t/ha was recorded by SRI + FYM (10 t/ha) + </a>butachlor (1.5 kg a.i./= ha) + manual weeding while lowest grain yield (5.23 t/ha) was recorded by conventional transplanting. The grain yield differences among SRI treatments were non-significant (5.56 to 5.87 t/ha) and similarly grain yield differen= ces between direct seeding of sprouted seed and conventional transplanting were non-significant. The per cent increase in grain yield was 8 to 10 under SRI over the mean grain yield of direct seeded and conventional transplanting, = respectively.Tiller number and panicle No./m2 were also differed significantly among different treatments. Mean maximum tiller number (544/m2) and panicle number (516/m2), highest dry matter production (1330 g/m2) were recorded by SRI w= hile the lowest number of tillers (443/m2) panicle (430/m2) and dry matter production (1104 g/m2) with conventional transplanting. <o:p></o:p> <o:p>= </o:p> On th= e basis of these results it can be stated that among different methods of stand establishment of rice, system of rice intensification enhanced grain yield = by 10% compared to conventional transplanting. <o:p></o:p></= p> <o:p> </o:p> ****<o:p></o:p> </div> </body> </html>

MIME-Version: 1.0 Content-Location: file:///C:/EA435679/Abstract29.htm Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii" Comparative performance of different methods of rice establishment</= title> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"City" downloadurl=3D"http://www.5iamas-microsoft-com:office:smartt= ags"/> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"country-region" downloadurl=3D"http://www.5iantlavalamp.com/"/> <o:SmartTagType namespaceuri=3D"urn:schemas-microsoft-com:office:smarttags" name=3D"place" downloadurl=3D"http://www.5iantlavalamp.com/"/>  <style>  </style>  </head> <body lang=3DEN-US style=3D'tab-interval:.5in'> <div class=3DSection1> Comparative performance of dif= ferent methods of rice establishment<o:p></o:p> <o:p> </o:p> S.P. Singh, B. Sreedevi, R.M. = Kumar, P. Krishnamurthy and S.V. Subbaiah<o:p></o:p></= span> Directorate of Rice Research, Rajendranagar, <st1:place w:st=3D"on"><st1:City w:st=3D"on">Hyderabad</st1:City></st1:plac= e> – 500 030<o:p></o:p> <o:p> </o:p> &= nbsp; Rice (Oryza</sp= an> sativa L) is the staple food for = about 80 per cent population and a source of livelihood for about 120 – 150 million rural house holds in <st1:place w:st=3D"on"><st1:country-region w:s= t=3D"on">India</st1:country-region></st1:place>. It accounts for about 43 per cent of food grain production in the country. = Rice consumes major share of available water for irrigation and now major concer= n is that how to economize water use. The System of Rice Intensification (SRI) provides an opportunity for utilizing irrigation water more effectively with less seed rate and inorganic fertilizer use. System of Rice Intensification= has recorded 10 – 20 per cent more grain yield in comparison to conventio= nal transplanting at different locations.<o:p></o:p> <o:p> </o:p> &= nbsp; Field trials were conducted during rabi 2004-05 and <sp= an class=3DSpellE>kharif 20= 05, at the research farm of Directorate of Rice Research, Raj= endranagar, <st1:City w:st=3D"on"><st1:place w:st=3D"on">Hyderabad</st1:place></st1:Cit= y>. The experimental site was silty clay loam with pH 8= .2 and 255, 25 and 520 kg/ha available nitrogen, phosphorus and potash, respective= ly. Hybrid rice variety KRH-2 was tested with six treatments of SRI - T1 – SRI + FYM (10 t/ha) + <= span class=3DSpellE>conoweeder (4 times); T2 – SRI + FYM (10 t/ha) = + butachlor + conoweeder (2= times); T3 - SRI + FYM (10 t/ha) + <s= pan class=3DSpellE>butachlor + manual weeding; T4 – SRI + FYM (5 t= /ha) + conoweeder (4 times); T5 – SRI + FYM (5 t= /ha) + butachlor + conoweeder</sp= an> (2 times); T6 – SRI + FYM (5 t/ha) + butachlor</spa= n> + manual weeding) in comparison to T7 - direct seeding of sprouted seed and T= 8 - conventional transplanting. The trial was laid out in random block design w= ith three replications. <a name=3D"OLE_LINK1"></a><a name=3D"OLE_LINK2">Grain yield differences were significant a= mong different treatments. On the basis of mean of two years data, maximum grain yield of 5.87 t/ha was recorded by SRI + FYM (10 t/ha) + </a>butachlor (1.5 kg a.i./= ha) + manual weeding while lowest grain yield (5.23 t/ha) was recorded by conventional transplanting. The grain yield differences among SRI treatments were non-significant (5.56 to 5.87 t/ha) and similarly grain yield differen= ces between direct seeding of sprouted seed and conventional transplanting were non-significant. The per cent increase in grain yield was 8 to 10 under SRI over the mean grain yield of direct seeded and conventional transplanting, = respectively.Tiller number and panicle No./m2 were also differed significantly among different treatments. Mean maximum tiller number (544/m2) and panicle number (516/m2), highest dry matter production (1330 g/m2) were recorded by SRI w= hile the lowest number of tillers (443/m2) panicle (430/m2) and dry matter production (1104 g/m2) with conventional transplanting. <o:p></o:p> <o:p>= </o:p> On th= e basis of these results it can be stated that among different methods of stand establishment of rice, system of rice intensification enhanced grain yield = by 10% compared to conventional transplanting. <o:p></o:p></= p> <o:p> </o:p> ****<o:p></o:p> </div> </body> </html>