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http://krishi.icar.gov.in/jspui/handle/123456789/32913
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | ICAR_CRIDA | en_US |
dc.date.accessioned | 2020-02-25T09:13:32Z | - |
dc.date.available | 2020-02-25T09:13:32Z | - |
dc.date.issued | 2008 | - |
dc.identifier.citation | Not Available | en_US |
dc.identifier.issn | Not Available | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/32913 | - |
dc.description | Not Available | en_US |
dc.description.abstract | A study was conducted during rainy season (kharif 2003-05) at Phulbani using experimental data on the response of rice (Oryza sativa L.) varieties to varying fertilizer levels under moist sub-humid Alfisols. Statistical models were developed for yield prediction and fertilizer optimization at varying crop seasonal rainfall. Eight genotypes, viz 'Vandana', 'ZHU-11-26', 'RR-361-1', 'Jaldi-6', 'RR-166-645', 'RR-348-6', 'Heera' and 'Saria' genotypes were tested with an application of 60-30-30, 40-20-20, 20-10-10 kg N-P(2)O(5)-K(2)O/ha and a control. The genotypes attained a mean yield of 1651 kg/ha with 13% variation in 3 seasons. 'Vandana' was superior in control and 20-10-10 kg/ha, compared with the 'RR-348-6' in 40-20-20 kg/ha and 'RR-166-645' in 60-30-30 NPK kg/ha. Rank correlation between ranks assigned to mean and variation of genotypes shows that the performance of a genotype was significantly correlated with its variation with a maximum correlation of 0.79 in control and a minimum of 0.43 in 60-30-30 kg/ha. Regression models of yield through rainfall, applied fertilizer and their interaction indicated a significant predictability ranging from 0.92 for 'Vandana', 'ZHU-11-26' and 'Jaldi-6' to 0.97 for 'RR-361-1', 'RR-166-645' and 'Saria'. Rainfall had a significant positive influence on yield of all genotypes while quadratic variables of N, P and K had a significant negative influence on 'Vandana' and 'Saria'. Optimum NPK doses for attaining maximum yield were minimum for 'Saria' and maximum for 'ZHU-11-26'. For economic yield they were minimum for 'Saria' while N was maximum for 'Vandana' and K was maximum for 'ZHU-11-26'. P was maximum for 'RR-166-645' at 750 and 1000 mm and 'ZHU-11-26' at 1250 mm of rainfall. Optimum N ranged from 35 to 77 kg/ha while, P and K ranged from 16 to 67 kg/ha for maximum yield at a crop seasonal rainfall of 750 to 1250 mm. The optimum doses for economic yield ranged from 32 to 69 kg/ha for N, 15 to 56 kg/ha. for P and 16 to 62 kg/ha for K in the study. | en_US |
dc.description.sponsorship | Not Available | en_US |
dc.language.iso | English | en_US |
dc.publisher | Maruthi Sankar, G.R | en_US |
dc.relation.ispartofseries | Not Available; | - |
dc.subject | varieties, varying, fertilizer ,levels. | en_US |
dc.title | Statistical evaluation and optimization of fertilizer requirement of upland rice (Oryza sativa) genotypes at varying levels of crop seasonal rainfall under moist subhumid alfisols. | en_US |
dc.title.alternative | Statistical evaluation and optimization of fertilizer requirement of upland rice (Oryza sativa) genotypes at varying levels of crop seasonal rainfall under moist subhumid alfisols. | en_US |
dc.type | Technical Report | en_US |
dc.publication.projectcode | Not Available | en_US |
dc.publication.journalname | Indian Journal of Agricultural Sciences | en_US |
dc.publication.volumeno | 78(3) | en_US |
dc.publication.pagenumber | 18 – 23. | en_US |
dc.publication.divisionUnit | Not Available | en_US |
dc.publication.sourceUrl | Not Available | en_US |
dc.publication.authorAffiliation | ICAR_CRIDA | en_US |
dc.ICARdataUseLicence | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf | en_US |
dc.publication.naasrating | 6.21 | en_US |
Appears in Collections: | NRM-CRIDA-Publication |
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