Biofertilizers, Nitrogen and Phosphorus on Yield and Nutrient Economy in Forage Sorghum Affected by Nutrient Management in Preceding Mustard

Authors

  • A. V. Ramanjaneyulu Regional Agricultural Research Station (ANGRAU), Palem, Mahaboobnagar, Andhra Pradesh (509 215), India
  • G. Giri Indian Agricultural Research Institute (IARI), New Delhi (100 012), India
  • S. R. Kumar Directorate of Sorghum Research (ICAR), Rajendranagar, Hyderabad, Andhra Pradesh (500 030), India

Abstract

The results of field experiment conducted during 2003-04 and 2004-05 revealed that green and dry fodder yield of sorghum were highest when the crop received recom­mended dose of fertilizer (RDF) at 60 kg N+30 kg P2O5 ha-1, but the crop yielded comparable green and dry fodder when it received half RDF (30 kg N+15 kg P2O5 ha-1) +biofertilizers (Azotobacter+phosphate solubilizing bacteria). Further, RDF and half RDF+biofertilizers enhanced the dry fodder yield by 45.8 and 41.2%, respectively over control. The highest agronomic efficiency (57 kg dry fodder kg-1 N applied), net return (INR 5190 ha-1) and benefit-cost ratio (1.45) were also obtained with half RDF+biofertilizers. On the contrary, the crop removed significantly greater amount of N and P when supplied with RDF, while RDF and half RDF+biofertilizers were at par and significantly superior to half RDF and control in respect of K uptake. RDF (80 kg N+40 kg P2O5 ha-1) applied to preceding mustard significantly out yielded all other treatments in respect of green fodder yield of sorghum barring residual half RDF+biofertilizers. Residual RDF and half RDF+biofertilizers enhanced dry fodder yield by 31.6 and 27.0%, respectively 

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Published

2010-09-07

How to Cite

1.
Ramanjaneyulu AV, Giri G, Kumar SR. Biofertilizers, Nitrogen and Phosphorus on Yield and Nutrient Economy in Forage Sorghum Affected by Nutrient Management in Preceding Mustard. IJBSM [Internet]. 2010 Sep. 7 [cited 2025 Sep. 21];1(Sep, 2):66-8. Available from: https://ojs.pphouse.org/index.php/IJBSM/article/view/58

Issue

Vol. 1 No. Sep, 2 (2010)

Section

Articles

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