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Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

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    Abstract - Issue Jul 2021, 42 (4)                                     Back

nstantaneous and historical temperature effects on a-pinene

Combined effect of rock phosphate with single super phosphate on yield and phosphorus use efficiency under maize-groundnut cropping sequence in Alfisols of Odisha


S. Mohanty1, G.H. Santra2*, P.P. Rout2 and S. Mishra3 

1Department of Soil Science and Agricultural Chemistry, Odisha University of Agriculture and Technology, Bhubaneswar- 751 003, India

2Department of Soil Science and Agricultural Chemistry, Institute of Agricultural science, Siksha ‘O’ Anusandhan (Deemed to be university), Bhubaneswar-751 003, India

3Department of Computer Science application, Centre for post-graduate studies, Odisha University of Agriculture and Technology, Bhubaneswar-751 003, India

*Corresponding Author Email :


Received: 15.06.2020                                                            Revised: 25.10.2020                                                    Accepted: 12.12.2020




Aim: The present study was conducted to investigate the effect of combined application of rock phosphate with water soluble phosphorus fertilizers on its efficiency in relation to soil and crop production.

Methodology: Rock phosphate and single super phosphate were used as supplemental source of phosphorus and applied in variable combinations at graded doses, with maize and groundnut as test crop. Lime was applied in combination with 100% SSP to analyse its effect. The composite surface (0-15 cm) soil samples were collected at critical growth stages of maize and groundnut and further analyzed for different physical and physico-chemical characteristics. The plant samples were collected from each treatment at harvest stage for nutrient analyses.

Results: Application of rock Phosphate increased the available phosphorus in soil. The combined treatment significantly influenced the yield attributes and nutrient uptake of both maize and groundnut crops. Among the combination, equal proportion of soluble single super phosphate and insoluble rock phosphate source of P outreached the other combination ratios. The highest agronomic phosphorus use efficiency and relative agronomic efficiency of the cropping sequence was obtained with the combined treatment of Single super phosphate along with lime.      

Interpretation: Combination of rock phosphate which has been reported to be farmer’s pocket friendly along with single super phosphate under acid soil conditions holds the potential to produce better results as compared to use of lone conventional water soluble phosphatic fertilizer like single super phosphate.

Key words: Agronomic phosphorus use efficiency, Relative agronomic efficiency, Rock phosphate, Single super phosphate




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