ABSTRACT
A pot experiment was conducted to study the comparative effect of waste water (WW) and ground water (GW) alone and along with different nitrogen (N), phosphorus (P), and potassium (K) combinations (N0P0K0, N40P15K15, N60P30K30, N80P45K45) together with different levels of fly ash (FA) (FA0, FA10, FA20), to obtain a suitable combination of fertilizers, FA and water based on the growth, physiology, yield, and heavy metal contents of Brassica campestris cv. Pusa Gold. Results revealed that WW irrigation proved beneficial over GW. All the parameters increased in both levels of FA10 and FA20 along with three doses of NPK but FA at 20 t ha−1 proved better. The effect was more efficacious with both wastes together which makes NPK optimum at N60P30K30 instead of N80P45K45 treatment combinations and thereby lowered input of fertilizers. Therefore, utilization of these wastes may be recommended for the purpose of irrigation, soil amendment, and as a source of nutrients in augmenting the mustard yield.
Acknowledgments
The authors thank the Chairman, Department of Botany, Aligarh Muslim University for providing all the necessary facilities to carry out this work.
Funding
SS and AI thank the University Grant Commission (UGC) as the work was funded under Rajiv Gandhi National Fellowship in the form of Junior Research Fellow and Senior Research Fellow (JRF and SRF) with Grant No. 16-1274(SC)/2009 SA-III.