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Vegetos- An International Journal of Plant Research
Year : 2013, Volume : 26, Issue : 1
First page : ( 58) Last page : ( 66)
Print ISSN : 0970-4078. Online ISSN : 2229-4473.
Article DOI : 10.5958/j.2229-4473.26.1.009

Effect of Organic Nitrogen Sources on Yield Quality and Nutrient Uptake of Rice (Oryza sativa) Under Different Cropping System

Yadav S K*, Singh Yogeshwar1, Kumar R P2, Yadav M K2, Singh Kalyan2

Central Potato Research Station, Shillong (Meghalaya), India

1Department of Agronomy, Rajendra Agricultural University, Pusa, Samastipur, Bihar- 848125

2Department of Agronomy, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi-221005, Uttar Pradesh, India

*Corresponding author Email: sanjaybhu05@rediffmail.com

Online published on 9 July, 2013.

Abstract

A field experiment was conducted during 2005–06 and 2006–07 to study the effect of organic nitrogen sources on yield, quality and nutrient uptake of rice (Oryza sativa L.) under different cropping systems. Among the cropping system, rice-potato-onion gave the highest rice grain equivalent yield (355.7 q ha−1) and maximum net return (Rs.268656 ha−1). However the organic nitrogen nutrition (1/3FYM +1/3poultry manure + 1/3vermicompost) with bio-fertilizers (Azotobacter and PSB) had the highest rice grain equivalent yield (353.1 q ha−1) net monetary return (Rs.292454 ha−1) and benefit cost ratio (3.07). The application of organic manure alone or along with biofertilizers inoculation significantly improved the quality parameters, nutrient uptake and fertility status of soil over control. Organic nutrition treatments i.e. (1/3FYM +1/3poultry manure + 1/3vermicompost) with bio-fertilizers (Azotobacter and PSB) and also without bio-fertilizers (Azotobacter and PSB) significantly improved availability of major (nitrogen, phosphorus and potassium), and secondary (sulphur) nutrients over control under the study and the maximum gain of major (nitrogen, phosphorus, and potassium) and secondary (sulphur) nutrients was associated with the application of organic matter (1/3FYM +1/3poultry manure + 1/3 vermicompost) along with bio-fertilizers (Azotobacter and PSB).

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Keywords

Cropping system, Organic farming, Rice, Soil fertility, Uptake, Yield.

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