Legume Research

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Research Article

Legume Research, volume 41 issue 6 (december 2018) : 861-866

Impact of different ratios and levels of nitrogen and phosphorus on growth, yield and nutrient uptake of rainfed soybean 

Satyabrata Mangaraj, L.H. Malligawad, R.K. Paikaray, S.R. Pradhan, T.R. Sahoo
1College of Agriculture, University of Agricultural Sciences, Dharwad-580 005, Karnataka, India.

  • Submitted20-12-2016|

  • Accepted09-10-2017|

  • First Online 04-04-2018|

  • doi 10.18805/LR-3819

Cite article:- Mangaraj Satyabrata, Malligawad L.H., Paikaray R.K., Pradhan S.R., Sahoo T.R. (2018). Impact of different ratios and levels of nitrogen and phosphorus on growth, yield and nutrient uptake of rainfed soybean. Legume Research. 41(6): 861-866. doi: 10.18805/LR-3819.

ABSTRACT

A field experiment was carried out during kharif 2015 with thirteen ratios of nitrogen (N) and phosphorus (P2O5) fertilizers with constant potassium level (25 kg K2O ha-1) on soybean cultivar DSb 21. The treatment receiving N/P fertilizer ratio of 0.70 (basal application of 18 kg N, 46 kg P2O5, 25 kg K2O ha-1 + foliar application of nitrogen @ 7 kg N ha-1 at initiation of flowering and foliar application of nitrogen @ 7 kg N ha-1 at 15 days after first foliar spray) recorded significantly higher seed yield (3217 kg ha-1), haulm yield (3788 kg ha-1), number of filled pods plant-1 (44.73), total number of pods plant-1 (47.57) and 100 seed weight (15.40 g) This treatment also recorded significantly higher total dry matter production (34.15 g) that higher gross monetary returns, net monetary returns and B : C ratio (Rs. 1,12,595, Rs. 89,770 ha-1 and 4.93, respectively). 

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